./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro --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 b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 --- 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-8393723 [2022-11-18 19:55:14,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:55:14,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:55:14,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:55:14,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:55:14,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:55:14,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:55:14,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:55:14,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:55:14,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:55:14,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:55:14,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:55:14,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:55:14,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:55:14,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:55:14,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:55:14,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:55:14,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:55:14,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:55:14,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:55:14,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:55:14,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:55:14,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:55:14,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:55:14,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:55:14,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:55:14,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:55:14,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:55:14,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:55:14,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:55:14,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:55:14,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:55:14,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:55:14,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:55:14,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:55:14,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:55:14,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:55:14,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:55:14,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:55:14,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:55:14,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:55:14,279 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 19:55:14,306 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:55:14,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:55:14,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:55:14,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:55:14,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:55:14,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:55:14,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:55:14,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:55:14,311 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:55:14,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:55:14,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:55:14,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:55:14,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:55:14,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:55:14,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:55:14,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:55:14,314 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:55:14,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:55:14,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:55:14,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:55:14,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:55:14,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:55:14,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:55:14,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:55:14,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:55:14,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:55:14,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:55:14,318 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:55:14,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:55:14,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:55:14,319 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_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 [2022-11-18 19:55:14,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:55:14,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:55:14,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:55:14,695 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:55:14,696 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:55:14,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-18 19:55:14,789 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/data/2267c4901/e4468b3d7b604b2092465dc0f27e5190/FLAG70442b654 [2022-11-18 19:55:16,061 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:55:16,062 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-18 19:55:16,147 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/data/2267c4901/e4468b3d7b604b2092465dc0f27e5190/FLAG70442b654 [2022-11-18 19:55:16,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/data/2267c4901/e4468b3d7b604b2092465dc0f27e5190 [2022-11-18 19:55:16,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:55:16,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:55:16,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:55:16,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:55:16,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:55:16,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:55:16" (1/1) ... [2022-11-18 19:55:16,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6418363c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:16, skipping insertion in model container [2022-11-18 19:55:16,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:55:16" (1/1) ... [2022-11-18 19:55:16,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:55:16,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:55:21,068 WARN L234 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_a84333a2-ec84-4b3a-94e9-d2d72b533861/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i[381126,381139] [2022-11-18 19:55:21,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:55:21,507 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:55:22,479 WARN L234 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_a84333a2-ec84-4b3a-94e9-d2d72b533861/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i[381126,381139] [2022-11-18 19:55:22,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:55:22,835 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:55:22,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22 WrapperNode [2022-11-18 19:55:22,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:55:22,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:55:22,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:55:22,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:55:22,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22" (1/1) ... [2022-11-18 19:55:23,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22" (1/1) ... [2022-11-18 19:55:23,855 INFO L138 Inliner]: procedures = 549, calls = 5021, calls flagged for inlining = 246, calls inlined = 225, statements flattened = 9869 [2022-11-18 19:55:23,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:55:23,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:55:23,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:55:23,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:55:23,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22" (1/1) ... [2022-11-18 19:55:23,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22" (1/1) ... [2022-11-18 19:55:24,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22" (1/1) ... [2022-11-18 19:55:24,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22" (1/1) ... [2022-11-18 19:55:24,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22" (1/1) ... [2022-11-18 19:55:24,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22" (1/1) ... [2022-11-18 19:55:25,006 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22" (1/1) ... [2022-11-18 19:55:25,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22" (1/1) ... [2022-11-18 19:55:25,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:55:25,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:55:25,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:55:25,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:55:25,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22" (1/1) ... [2022-11-18 19:55:25,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:55:25,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:55:25,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:55:25,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a84333a2-ec84-4b3a-94e9-d2d72b533861/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:55:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-18 19:55:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-18 19:55:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_urb_cleanup [2022-11-18 19:55:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_urb_cleanup [2022-11-18 19:55:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-18 19:55:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-18 19:55:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-18 19:55:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 19:55:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 19:55:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_resume [2022-11-18 19:55:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_resume [2022-11-18 19:55:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-18 19:55:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-18 19:55:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 19:55:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 19:55:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_3 [2022-11-18 19:55:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_3 [2022-11-18 19:55:25,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-11-18 19:55:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-11-18 19:55:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_stop_streaming [2022-11-18 19:55:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_stop_streaming [2022-11-18 19:55:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure vdev_init [2022-11-18 19:55:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure vdev_init [2022-11-18 19:55:25,206 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_fmt [2022-11-18 19:55:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_fmt [2022-11-18 19:55:25,206 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_dvbt [2022-11-18 19:55:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_dvbt [2022-11-18 19:55:25,206 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2022-11-18 19:55:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2022-11-18 19:55:25,207 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2022-11-18 19:55:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2022-11-18 19:55:25,207 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2022-11-18 19:55:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2022-11-18 19:55:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-18 19:55:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-18 19:55:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_pointer [2022-11-18 19:55:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_pointer [2022-11-18 19:55:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_vmalloc [2022-11-18 19:55:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_vmalloc [2022-11-18 19:55:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-18 19:55:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-18 19:55:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-18 19:55:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-18 19:55:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:55:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_trigger [2022-11-18 19:55:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_trigger [2022-11-18 19:55:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2022-11-18 19:55:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2022-11-18 19:55:25,212 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_pcm_close [2022-11-18 19:55:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_pcm_close [2022-11-18 19:55:25,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 19:55:25,212 INFO L130 BoogieDeclarations]: Found specification of procedure check_control_id [2022-11-18 19:55:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure check_control_id [2022-11-18 19:55:25,213 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-18 19:55:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-18 19:55:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-18 19:55:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-18 19:55:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_queue [2022-11-18 19:55:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_queue [2022-11-18 19:55:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 19:55:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-18 19:55:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-18 19:55:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency [2022-11-18 19:55:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency [2022-11-18 19:55:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_mmap [2022-11-18 19:55:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_mmap [2022-11-18 19:55:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-18 19:55:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-18 19:55:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:55:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 19:55:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 19:55:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure usb_transfer_stop [2022-11-18 19:55:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_transfer_stop [2022-11-18 19:55:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-18 19:55:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-18 19:55:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2022-11-18 19:55:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2022-11-18 19:55:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure is_working [2022-11-18 19:55:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure is_working [2022-11-18 19:55:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-18 19:55:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-18 19:55:25,222 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_suspend [2022-11-18 19:55:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_suspend [2022-11-18 19:55:25,222 INFO L130 BoogieDeclarations]: Found specification of procedure fire_audio_urb [2022-11-18 19:55:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_audio_urb [2022-11-18 19:55:25,223 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-18 19:55:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-18 19:55:25,223 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_stream [2022-11-18 19:55:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_stream [2022-11-18 19:55:25,223 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2022-11-18 19:55:25,224 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2022-11-18 19:55:25,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-18 19:55:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-18 19:55:25,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:55:25,225 INFO L130 BoogieDeclarations]: Found specification of procedure get_audio_std [2022-11-18 19:55:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure get_audio_std [2022-11-18 19:55:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:55:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-18 19:55:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-18 19:55:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-18 19:55:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-18 19:55:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 19:55:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 19:55:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:55:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 19:55:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-18 19:55:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-18 19:55:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_open [2022-11-18 19:55:25,230 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_open [2022-11-18 19:55:25,230 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_signal_strength [2022-11-18 19:55:25,230 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_signal_strength [2022-11-18 19:55:25,231 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_release [2022-11-18 19:55:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_release [2022-11-18 19:55:25,231 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_open [2022-11-18 19:55:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_open [2022-11-18 19:55:25,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-18 19:55:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-18 19:55:25,232 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-18 19:55:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-18 19:55:25,232 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-11-18 19:55:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-11-18 19:55:25,232 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-18 19:55:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-18 19:55:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2022-11-18 19:55:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2022-11-18 19:55:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-18 19:55:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-18 19:55:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-18 19:55:25,242 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-18 19:55:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure init_copy [2022-11-18 19:55:25,243 INFO L138 BoogieDeclarations]: Found implementation of procedure init_copy [2022-11-18 19:55:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-18 19:55:25,243 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-18 19:55:25,244 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bulk_urbs_generic [2022-11-18 19:55:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bulk_urbs_generic [2022-11-18 19:55:25,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:55:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:55:25,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-18 19:55:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-18 19:55:25,245 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-18 19:55:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-18 19:55:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 19:55:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 19:55:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 19:55:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 19:55:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-18 19:55:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-18 19:55:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-18 19:55:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-18 19:55:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_pd_get_page [2022-11-18 19:55:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_pd_get_page [2022-11-18 19:55:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-18 19:55:25,248 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-18 19:55:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-18 19:55:25,248 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-18 19:55:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb [2022-11-18 19:55:25,249 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb [2022-11-18 19:55:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-18 19:55:25,249 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-18 19:55:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_get_fe [2022-11-18 19:55:25,249 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_get_fe [2022-11-18 19:55:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure pd_dvb_usb_device_cleanup [2022-11-18 19:55:25,250 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_dvb_usb_device_cleanup [2022-11-18 19:55:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_start_streaming [2022-11-18 19:55:25,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_start_streaming [2022-11-18 19:55:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 19:55:25,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 19:55:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 19:55:25,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 19:55:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-18 19:55:25,251 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-18 19:55:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-18 19:55:25,252 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-18 19:55:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 19:55:25,252 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 19:55:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2022-11-18 19:55:25,252 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2022-11-18 19:55:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 19:55:25,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 19:55:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-18 19:55:25,253 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-18 19:55:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_tuner [2022-11-18 19:55:25,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_tuner [2022-11-18 19:55:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:55:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-18 19:55:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-18 19:55:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure set_std [2022-11-18 19:55:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure set_std [2022-11-18 19:55:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:55:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb_generic [2022-11-18 19:55:25,255 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb_generic [2022-11-18 19:55:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_ts_bus_ctrl [2022-11-18 19:55:25,255 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_ts_bus_ctrl [2022-11-18 19:55:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_exit [2022-11-18 19:55:25,256 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_exit [2022-11-18 19:55:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2022-11-18 19:55:25,256 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2022-11-18 19:55:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-18 19:55:25,256 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-18 19:55:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 19:55:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-18 19:55:25,257 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-18 19:55:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_status [2022-11-18 19:55:25,257 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_status [2022-11-18 19:55:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_stop [2022-11-18 19:55:25,258 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_stop [2022-11-18 19:55:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-18 19:55:25,258 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-18 19:55:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_release [2022-11-18 19:55:25,258 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_release [2022-11-18 19:55:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-18 19:55:25,259 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-18 19:55:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-18 19:55:25,259 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-18 19:55:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure get_pd [2022-11-18 19:55:25,259 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pd [2022-11-18 19:55:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_disconnect [2022-11-18 19:55:25,260 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_disconnect [2022-11-18 19:55:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_poll [2022-11-18 19:55:25,260 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_poll [2022-11-18 19:55:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-18 19:55:25,261 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-18 19:55:25,261 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2022-11-18 19:55:25,261 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2022-11-18 19:55:25,261 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-18 19:55:25,261 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-18 19:55:25,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2022-11-18 19:55:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2022-11-18 19:55:25,262 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_params [2022-11-18 19:55:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_params [2022-11-18 19:55:25,262 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-18 19:55:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-18 19:55:25,263 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_unc_blocks [2022-11-18 19:55:25,263 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_unc_blocks [2022-11-18 19:55:25,263 INFO L130 BoogieDeclarations]: Found specification of procedure audio_buf_free [2022-11-18 19:55:25,263 INFO L138 BoogieDeclarations]: Found implementation of procedure audio_buf_free [2022-11-18 19:55:25,263 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 19:55:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 19:55:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_get_tune_settings [2022-11-18 19:55:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_get_tune_settings [2022-11-18 19:55:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_set_fe [2022-11-18 19:55:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_set_fe [2022-11-18 19:55:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:55:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure hibernation_resume [2022-11-18 19:55:25,265 INFO L138 BoogieDeclarations]: Found implementation of procedure hibernation_resume [2022-11-18 19:55:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_free [2022-11-18 19:55:25,265 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_free [2022-11-18 19:55:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 19:55:25,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 19:55:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_resume [2022-11-18 19:55:25,269 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_resume [2022-11-18 19:55:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_checkmode [2022-11-18 19:55:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_checkmode [2022-11-18 19:55:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-18 19:55:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-18 19:55:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2022-11-18 19:55:25,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2022-11-18 19:55:25,279 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-18 19:55:25,279 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-18 19:55:25,279 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2022-11-18 19:55:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2022-11-18 19:55:25,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-18 19:55:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-18 19:55:25,280 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_vmalloc_init [2022-11-18 19:55:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_vmalloc_init [2022-11-18 19:55:25,280 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-18 19:55:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-18 19:55:25,281 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2022-11-18 19:55:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2022-11-18 19:55:25,281 INFO L130 BoogieDeclarations]: Found specification of procedure get_autopm_ref [2022-11-18 19:55:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure get_autopm_ref [2022-11-18 19:55:25,281 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_sleep [2022-11-18 19:55:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_sleep [2022-11-18 19:55:25,282 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_setup [2022-11-18 19:55:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_setup [2022-11-18 19:55:25,282 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_video_device [2022-11-18 19:55:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_video_device [2022-11-18 19:55:25,282 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_ber [2022-11-18 19:55:25,283 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_ber [2022-11-18 19:55:25,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:55:25,283 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2022-11-18 19:55:25,283 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2022-11-18 19:55:25,283 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_prepare [2022-11-18 19:55:25,283 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_prepare [2022-11-18 19:55:26,974 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:55:26,979 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:55:37,492 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 20:02:34,621 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:02:34,647 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:02:34,647 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:02:34,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:34 BoogieIcfgContainer [2022-11-18 20:02:34,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:02:34,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:02:34,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:02:34,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:02:34,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:55:16" (1/3) ... [2022-11-18 20:02:34,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df3cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:34, skipping insertion in model container [2022-11-18 20:02:34,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:22" (2/3) ... [2022-11-18 20:02:34,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df3cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:34, skipping insertion in model container [2022-11-18 20:02:34,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:34" (3/3) ... [2022-11-18 20:02:34,666 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-18 20:02:34,691 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:02:34,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:02:34,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:02:34,877 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;@44a72d47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:02:34,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:02:34,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 2666 states, 1881 states have (on average 1.3779904306220097) internal successors, (2592), 1916 states have internal predecessors, (2592), 651 states have call successors, (651), 133 states have call predecessors, (651), 132 states have return successors, (636), 635 states have call predecessors, (636), 636 states have call successors, (636) [2022-11-18 20:02:34,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-18 20:02:34,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:34,934 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:34,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:02:34,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:34,945 INFO L85 PathProgramCache]: Analyzing trace with hash -574043780, now seen corresponding path program 1 times [2022-11-18 20:02:34,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:34,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805754027] [2022-11-18 20:02:34,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:34,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:02:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:02:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:02:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:02:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:02:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:02:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:02:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:02:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:36,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:02:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:37,035 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-18 20:02:37,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:37,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805754027] [2022-11-18 20:02:37,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805754027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:37,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:37,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:02:37,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947469215] [2022-11-18 20:02:37,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:37,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:02:37,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:37,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:02:37,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:02:37,112 INFO L87 Difference]: Start difference. First operand has 2666 states, 1881 states have (on average 1.3779904306220097) internal successors, (2592), 1916 states have internal predecessors, (2592), 651 states have call successors, (651), 133 states have call predecessors, (651), 132 states have return successors, (636), 635 states have call predecessors, (636), 636 states have call successors, (636) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:02:39,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:41,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:43,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:47,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:50,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:02:57,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:05,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:13,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:20,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:23,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:25,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:26,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:26,608 INFO L93 Difference]: Finished difference Result 5634 states and 8534 transitions. [2022-11-18 20:03:26,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:03:26,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 98 [2022-11-18 20:03:26,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:26,651 INFO L225 Difference]: With dead ends: 5634 [2022-11-18 20:03:26,652 INFO L226 Difference]: Without dead ends: 2951 [2022-11-18 20:03:26,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:03:26,675 INFO L413 NwaCegarLoop]: 3412 mSDtfsCounter, 1106 mSDsluCounter, 5936 mSDsCounter, 0 mSdLazyCounter, 2986 mSolverCounterSat, 1542 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 9348 SdHoareTripleChecker+Invalid, 4539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1542 IncrementalHoareTripleChecker+Valid, 2986 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:26,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 9348 Invalid, 4539 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1542 Valid, 2986 Invalid, 11 Unknown, 0 Unchecked, 48.8s Time] [2022-11-18 20:03:26,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2022-11-18 20:03:26,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2644. [2022-11-18 20:03:26,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 1876 states have (on average 1.3688699360341152) internal successors, (2568), 1894 states have internal predecessors, (2568), 636 states have call successors, (636), 132 states have call predecessors, (636), 131 states have return successors, (626), 625 states have call predecessors, (626), 626 states have call successors, (626) [2022-11-18 20:03:26,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3830 transitions. [2022-11-18 20:03:26,915 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3830 transitions. Word has length 98 [2022-11-18 20:03:26,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:26,916 INFO L495 AbstractCegarLoop]: Abstraction has 2644 states and 3830 transitions. [2022-11-18 20:03:26,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:03:26,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3830 transitions. [2022-11-18 20:03:26,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-18 20:03:26,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:26,926 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:26,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:03:26,926 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:26,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:26,927 INFO L85 PathProgramCache]: Analyzing trace with hash -740885246, now seen corresponding path program 1 times [2022-11-18 20:03:26,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:26,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759813482] [2022-11-18 20:03:26,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:26,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:03:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:03:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:03:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:03:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:03:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:03:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:03:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-18 20:03:28,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:28,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759813482] [2022-11-18 20:03:28,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759813482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:28,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:03:28,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:03:28,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876576583] [2022-11-18 20:03:28,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:28,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:03:28,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:28,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:03:28,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:03:28,505 INFO L87 Difference]: Start difference. First operand 2644 states and 3830 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-18 20:03:30,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:32,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:37,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:39,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:46,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:03:54,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:01,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:21,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:25,353 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 [] [2022-11-18 20:04:26,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:04:26,147 INFO L93 Difference]: Finished difference Result 8365 states and 12243 transitions. [2022-11-18 20:04:26,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:04:26,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 98 [2022-11-18 20:04:26,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:04:26,196 INFO L225 Difference]: With dead ends: 8365 [2022-11-18 20:04:26,196 INFO L226 Difference]: Without dead ends: 5736 [2022-11-18 20:04:26,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:04:26,214 INFO L413 NwaCegarLoop]: 3908 mSDtfsCounter, 5996 mSDsluCounter, 7433 mSDsCounter, 0 mSdLazyCounter, 4096 mSolverCounterSat, 3472 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6418 SdHoareTripleChecker+Valid, 11341 SdHoareTripleChecker+Invalid, 7577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3472 IncrementalHoareTripleChecker+Valid, 4096 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:04:26,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6418 Valid, 11341 Invalid, 7577 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3472 Valid, 4096 Invalid, 9 Unknown, 0 Unchecked, 56.7s Time] [2022-11-18 20:04:26,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5736 states. [2022-11-18 20:04:26,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5736 to 5136. [2022-11-18 20:04:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5136 states, 3656 states have (on average 1.3725382932166301) internal successors, (5018), 3683 states have internal predecessors, (5018), 1219 states have call successors, (1219), 258 states have call predecessors, (1219), 260 states have return successors, (1223), 1208 states have call predecessors, (1223), 1209 states have call successors, (1223) [2022-11-18 20:04:26,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5136 states to 5136 states and 7460 transitions. [2022-11-18 20:04:26,511 INFO L78 Accepts]: Start accepts. Automaton has 5136 states and 7460 transitions. Word has length 98 [2022-11-18 20:04:26,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:04:26,512 INFO L495 AbstractCegarLoop]: Abstraction has 5136 states and 7460 transitions. [2022-11-18 20:04:26,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-18 20:04:26,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5136 states and 7460 transitions. [2022-11-18 20:04:26,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-18 20:04:26,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:04:26,515 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:04:26,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:04:26,516 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:04:26,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:26,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1807844619, now seen corresponding path program 1 times [2022-11-18 20:04:26,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:26,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788251694] [2022-11-18 20:04:26,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:26,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:04:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:04:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:04:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:04:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:04:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 20:04:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:27,791 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-18 20:04:27,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:27,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788251694] [2022-11-18 20:04:27,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788251694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:27,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:27,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:04:27,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18477070] [2022-11-18 20:04:27,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:27,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:04:27,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:27,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:04:27,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:04:27,794 INFO L87 Difference]: Start difference. First operand 5136 states and 7460 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-18 20:04:29,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:31,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:35,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:38,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:45,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:53,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:01,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:20,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:22,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:25,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:25,294 INFO L93 Difference]: Finished difference Result 16362 states and 23991 transitions. [2022-11-18 20:05:25,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:05:25,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2022-11-18 20:05:25,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:25,362 INFO L225 Difference]: With dead ends: 16362 [2022-11-18 20:05:25,363 INFO L226 Difference]: Without dead ends: 11241 [2022-11-18 20:05:25,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:05:25,384 INFO L413 NwaCegarLoop]: 3912 mSDtfsCounter, 5993 mSDsluCounter, 7458 mSDsCounter, 0 mSdLazyCounter, 4078 mSolverCounterSat, 3480 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6411 SdHoareTripleChecker+Valid, 11370 SdHoareTripleChecker+Invalid, 7567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3480 IncrementalHoareTripleChecker+Valid, 4078 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:25,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6411 Valid, 11370 Invalid, 7567 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3480 Valid, 4078 Invalid, 9 Unknown, 0 Unchecked, 56.4s Time] [2022-11-18 20:05:25,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11241 states. [2022-11-18 20:05:25,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11241 to 10030. [2022-11-18 20:05:25,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10030 states, 7145 states have (on average 1.3762071378586425) internal successors, (9833), 7185 states have internal predecessors, (9833), 2376 states have call successors, (2376), 506 states have call predecessors, (2376), 508 states have return successors, (2394), 2364 states have call predecessors, (2394), 2366 states have call successors, (2394) [2022-11-18 20:05:25,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10030 states to 10030 states and 14603 transitions. [2022-11-18 20:05:25,970 INFO L78 Accepts]: Start accepts. Automaton has 10030 states and 14603 transitions. Word has length 103 [2022-11-18 20:05:25,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:25,971 INFO L495 AbstractCegarLoop]: Abstraction has 10030 states and 14603 transitions. [2022-11-18 20:05:25,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-18 20:05:25,972 INFO L276 IsEmpty]: Start isEmpty. Operand 10030 states and 14603 transitions. [2022-11-18 20:05:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-18 20:05:25,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:25,981 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:25,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:05:25,982 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:25,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:25,982 INFO L85 PathProgramCache]: Analyzing trace with hash 790167574, now seen corresponding path program 1 times [2022-11-18 20:05:25,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:25,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82635005] [2022-11-18 20:05:25,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:25,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:26,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:05:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:26,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:26,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:26,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:05:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:26,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:26,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:26,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:05:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:05:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:05:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:05:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 20:05:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,300 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-18 20:05:27,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:27,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82635005] [2022-11-18 20:05:27,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82635005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:27,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:27,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:05:27,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920020536] [2022-11-18 20:05:27,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:27,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:05:27,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:27,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:05:27,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:27,303 INFO L87 Difference]: Start difference. First operand 10030 states and 14603 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-18 20:05:29,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:31,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:35,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:37,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:44,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:52,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:59,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:18,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:20,197 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 [] [2022-11-18 20:06:23,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:23,087 INFO L93 Difference]: Finished difference Result 32237 states and 47286 transitions. [2022-11-18 20:06:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:06:23,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 113 [2022-11-18 20:06:23,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:23,210 INFO L225 Difference]: With dead ends: 32237 [2022-11-18 20:06:23,211 INFO L226 Difference]: Without dead ends: 22222 [2022-11-18 20:06:23,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:06:23,249 INFO L413 NwaCegarLoop]: 3944 mSDtfsCounter, 6040 mSDsluCounter, 7517 mSDsCounter, 0 mSdLazyCounter, 4088 mSolverCounterSat, 3489 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6462 SdHoareTripleChecker+Valid, 11461 SdHoareTripleChecker+Invalid, 7586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3489 IncrementalHoareTripleChecker+Valid, 4088 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:23,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6462 Valid, 11461 Invalid, 7586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3489 Valid, 4088 Invalid, 9 Unknown, 0 Unchecked, 54.5s Time] [2022-11-18 20:06:23,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22222 states. [2022-11-18 20:06:24,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22222 to 19821. [2022-11-18 20:06:24,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19821 states, 14132 states have (on average 1.376733654118313) internal successors, (19456), 14198 states have internal predecessors, (19456), 4678 states have call successors, (4678), 1008 states have call predecessors, (4678), 1010 states have return successors, (4724), 4664 states have call predecessors, (4724), 4668 states have call successors, (4724) [2022-11-18 20:06:24,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19821 states to 19821 states and 28858 transitions. [2022-11-18 20:06:24,310 INFO L78 Accepts]: Start accepts. Automaton has 19821 states and 28858 transitions. Word has length 113 [2022-11-18 20:06:24,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:24,311 INFO L495 AbstractCegarLoop]: Abstraction has 19821 states and 28858 transitions. [2022-11-18 20:06:24,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-18 20:06:24,311 INFO L276 IsEmpty]: Start isEmpty. Operand 19821 states and 28858 transitions. [2022-11-18 20:06:24,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-18 20:06:24,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:24,324 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:24,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:06:24,326 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:06:24,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:24,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1426179980, now seen corresponding path program 1 times [2022-11-18 20:06:24,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:24,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180452956] [2022-11-18 20:06:24,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:24,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:06:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:06:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:06:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:06:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:06:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:06:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:25,709 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-18 20:06:25,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:25,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180452956] [2022-11-18 20:06:25,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180452956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:25,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:25,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:06:25,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143417631] [2022-11-18 20:06:25,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:25,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:06:25,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:25,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:06:25,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:06:25,712 INFO L87 Difference]: Start difference. First operand 19821 states and 28858 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:06:27,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:29,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:33,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:36,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:47,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:58,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:07:09,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:07:17,376 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 [] [2022-11-18 20:07:19,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:07:19,380 INFO L93 Difference]: Finished difference Result 62108 states and 91221 transitions. [2022-11-18 20:07:19,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:07:19,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2022-11-18 20:07:19,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:07:19,618 INFO L225 Difference]: With dead ends: 62108 [2022-11-18 20:07:19,618 INFO L226 Difference]: Without dead ends: 42302 [2022-11-18 20:07:19,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:07:19,714 INFO L413 NwaCegarLoop]: 4021 mSDtfsCounter, 6457 mSDsluCounter, 7944 mSDsCounter, 0 mSdLazyCounter, 4281 mSolverCounterSat, 4616 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6877 SdHoareTripleChecker+Valid, 11965 SdHoareTripleChecker+Invalid, 8905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4616 IncrementalHoareTripleChecker+Valid, 4281 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:07:19,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6877 Valid, 11965 Invalid, 8905 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4616 Valid, 4281 Invalid, 8 Unknown, 0 Unchecked, 51.8s Time] [2022-11-18 20:07:19,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42302 states. [2022-11-18 20:07:21,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42302 to 36729. [2022-11-18 20:07:21,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36729 states, 26252 states have (on average 1.3841231144293769) internal successors, (36336), 26342 states have internal predecessors, (36336), 8598 states have call successors, (8598), 1876 states have call predecessors, (8598), 1878 states have return successors, (8676), 8584 states have call predecessors, (8676), 8588 states have call successors, (8676) [2022-11-18 20:07:22,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36729 states to 36729 states and 53610 transitions. [2022-11-18 20:07:22,087 INFO L78 Accepts]: Start accepts. Automaton has 36729 states and 53610 transitions. Word has length 114 [2022-11-18 20:07:22,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:07:22,088 INFO L495 AbstractCegarLoop]: Abstraction has 36729 states and 53610 transitions. [2022-11-18 20:07:22,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:07:22,088 INFO L276 IsEmpty]: Start isEmpty. Operand 36729 states and 53610 transitions. [2022-11-18 20:07:22,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-18 20:07:22,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:07:22,091 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:22,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:07:22,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:07:22,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:22,092 INFO L85 PathProgramCache]: Analyzing trace with hash 707352830, now seen corresponding path program 1 times [2022-11-18 20:07:22,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:22,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737572919] [2022-11-18 20:07:22,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:22,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:07:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:07:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:07:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:07:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:07:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:07:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:23,477 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-18 20:07:23,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:23,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737572919] [2022-11-18 20:07:23,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737572919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:23,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:23,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:07:23,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458434173] [2022-11-18 20:07:23,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:23,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:07:23,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:23,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:07:23,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:07:23,480 INFO L87 Difference]: Start difference. First operand 36729 states and 53610 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-18 20:07:25,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:07:27,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:07:29,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:07:33,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:07:36,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:07:44,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:07:53,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:03,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:13,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:15,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:17,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:19,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:19,514 INFO L93 Difference]: Finished difference Result 78159 states and 114931 transitions. [2022-11-18 20:08:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:08:19,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 116 [2022-11-18 20:08:19,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:19,721 INFO L225 Difference]: With dead ends: 78159 [2022-11-18 20:08:19,722 INFO L226 Difference]: Without dead ends: 41445 [2022-11-18 20:08:19,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:08:19,859 INFO L413 NwaCegarLoop]: 3351 mSDtfsCounter, 4628 mSDsluCounter, 6032 mSDsCounter, 0 mSdLazyCounter, 3266 mSolverCounterSat, 1960 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4998 SdHoareTripleChecker+Valid, 9383 SdHoareTripleChecker+Invalid, 5237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1960 IncrementalHoareTripleChecker+Valid, 3266 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:19,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4998 Valid, 9383 Invalid, 5237 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1960 Valid, 3266 Invalid, 11 Unknown, 0 Unchecked, 53.8s Time] [2022-11-18 20:08:19,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41445 states. [2022-11-18 20:08:22,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41445 to 36878. [2022-11-18 20:08:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36878 states, 26360 states have (on average 1.375834597875569) internal successors, (36267), 26449 states have internal predecessors, (36267), 8620 states have call successors, (8620), 1895 states have call predecessors, (8620), 1897 states have return successors, (8698), 8607 states have call predecessors, (8698), 8610 states have call successors, (8698) [2022-11-18 20:08:22,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36878 states to 36878 states and 53585 transitions. [2022-11-18 20:08:22,472 INFO L78 Accepts]: Start accepts. Automaton has 36878 states and 53585 transitions. Word has length 116 [2022-11-18 20:08:22,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:22,474 INFO L495 AbstractCegarLoop]: Abstraction has 36878 states and 53585 transitions. [2022-11-18 20:08:22,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-18 20:08:22,474 INFO L276 IsEmpty]: Start isEmpty. Operand 36878 states and 53585 transitions. [2022-11-18 20:08:22,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-18 20:08:22,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:22,477 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:22,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:08:22,477 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:22,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:22,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1890526532, now seen corresponding path program 1 times [2022-11-18 20:08:22,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:22,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800670366] [2022-11-18 20:08:22,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:22,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:08:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:08:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:08:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:08:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:08:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:08:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:08:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:08:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 20:08:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:25,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-18 20:08:25,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:25,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800670366] [2022-11-18 20:08:25,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800670366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:25,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:25,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:08:25,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62661336] [2022-11-18 20:08:25,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:25,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:08:25,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:25,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:08:25,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:08:25,039 INFO L87 Difference]: Start difference. First operand 36878 states and 53585 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-18 20:08:27,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:29,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:33,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:35,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:44,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:53,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:09:05,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:09:14,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:09:16,994 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 [] [2022-11-18 20:09:19,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:09:19,163 INFO L93 Difference]: Finished difference Result 82802 states and 120264 transitions. [2022-11-18 20:09:19,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:09:19,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 119 [2022-11-18 20:09:19,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:09:19,354 INFO L225 Difference]: With dead ends: 82802 [2022-11-18 20:09:19,354 INFO L226 Difference]: Without dead ends: 45939 [2022-11-18 20:09:19,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:09:19,484 INFO L413 NwaCegarLoop]: 3422 mSDtfsCounter, 4191 mSDsluCounter, 6742 mSDsCounter, 0 mSdLazyCounter, 3490 mSolverCounterSat, 1975 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4457 SdHoareTripleChecker+Valid, 10164 SdHoareTripleChecker+Invalid, 5474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1975 IncrementalHoareTripleChecker+Valid, 3490 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:09:19,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4457 Valid, 10164 Invalid, 5474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1975 Valid, 3490 Invalid, 9 Unknown, 0 Unchecked, 51.9s Time] [2022-11-18 20:09:19,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45939 states. [2022-11-18 20:09:21,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45939 to 40329. [2022-11-18 20:09:21,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40329 states, 28851 states have (on average 1.3716335655609857) internal successors, (39573), 28938 states have internal predecessors, (39573), 9172 states have call successors, (9172), 2304 states have call predecessors, (9172), 2305 states have return successors, (9266), 9160 states have call predecessors, (9266), 9162 states have call successors, (9266) [2022-11-18 20:09:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40329 states to 40329 states and 58011 transitions. [2022-11-18 20:09:21,972 INFO L78 Accepts]: Start accepts. Automaton has 40329 states and 58011 transitions. Word has length 119 [2022-11-18 20:09:21,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:09:21,972 INFO L495 AbstractCegarLoop]: Abstraction has 40329 states and 58011 transitions. [2022-11-18 20:09:21,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-18 20:09:21,973 INFO L276 IsEmpty]: Start isEmpty. Operand 40329 states and 58011 transitions. [2022-11-18 20:09:21,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-18 20:09:21,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:09:21,976 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:09:21,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:09:21,977 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:09:21,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:09:21,977 INFO L85 PathProgramCache]: Analyzing trace with hash 979467301, now seen corresponding path program 1 times [2022-11-18 20:09:21,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:09:21,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682299052] [2022-11-18 20:09:21,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:21,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:09:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:22,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:09:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:09:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:09:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:09:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:09:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:09:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:09:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:09:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 20:09:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:09:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:09:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,675 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-18 20:09:23,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:09:23,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682299052] [2022-11-18 20:09:23,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682299052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:09:23,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:09:23,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:09:23,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187128630] [2022-11-18 20:09:23,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:09:23,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:09:23,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:09:23,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:09:23,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:09:23,678 INFO L87 Difference]: Start difference. First operand 40329 states and 58011 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:09:25,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:09:27,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:09:29,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []