./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/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_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/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_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/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 5c13092b5fe0ffbf7fbf1fe31d493be6a68ca2455b811b10fd7983ff470e432f --- 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 20:18:50,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:18:50,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:18:50,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:18:50,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:18:50,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:18:50,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:18:50,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:18:50,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:18:50,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:18:50,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:18:50,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:18:50,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:18:50,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:18:50,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:18:50,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:18:50,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:18:50,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:18:50,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:18:50,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:18:50,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:18:50,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:18:50,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:18:50,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:18:50,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:18:50,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:18:50,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:18:50,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:18:50,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:18:50,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:18:50,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:18:50,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:18:50,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:18:50,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:18:50,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:18:50,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:18:50,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:18:50,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:18:50,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:18:50,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:18:50,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:18:50,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:18:50,479 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:18:50,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:18:50,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:18:50,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:18:50,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:18:50,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:18:50,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:18:50,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:18:50,484 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:18:50,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:18:50,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:18:50,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:18:50,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:18:50,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:18:50,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:18:50,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:18:50,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:18:50,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:18:50,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:18:50,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:18:50,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:18:50,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:18:50,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:18:50,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:18:50,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:18:50,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:18:50,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:18:50,489 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:18:50,490 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:18:50,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:18:50,490 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_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c13092b5fe0ffbf7fbf1fe31d493be6a68ca2455b811b10fd7983ff470e432f [2022-11-18 20:18:50,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:18:50,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:18:50,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:18:50,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:18:50,977 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:18:50,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i [2022-11-18 20:18:51,087 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/data/31ec8a200/8fab27eb32ec4a59bddfedebaa57131b/FLAGbbff16e68 [2022-11-18 20:18:52,215 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:18:52,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i [2022-11-18 20:18:52,273 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/data/31ec8a200/8fab27eb32ec4a59bddfedebaa57131b/FLAGbbff16e68 [2022-11-18 20:18:52,635 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/data/31ec8a200/8fab27eb32ec4a59bddfedebaa57131b [2022-11-18 20:18:52,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:18:52,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:18:52,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:18:52,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:18:52,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:18:52,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:18:52" (1/1) ... [2022-11-18 20:18:52,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62460bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:52, skipping insertion in model container [2022-11-18 20:18:52,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:18:52" (1/1) ... [2022-11-18 20:18:52,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:18:52,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:18:53,795 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_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i[108030,108043] [2022-11-18 20:18:54,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:18:54,576 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:18:54,708 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_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i[108030,108043] [2022-11-18 20:18:55,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:18:55,225 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:18:55,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55 WrapperNode [2022-11-18 20:18:55,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:18:55,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:18:55,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:18:55,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:18:55,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55" (1/1) ... [2022-11-18 20:18:55,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55" (1/1) ... [2022-11-18 20:18:55,608 INFO L138 Inliner]: procedures = 178, calls = 1875, calls flagged for inlining = 81, calls inlined = 81, statements flattened = 3550 [2022-11-18 20:18:55,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:18:55,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:18:55,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:18:55,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:18:55,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55" (1/1) ... [2022-11-18 20:18:55,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55" (1/1) ... [2022-11-18 20:18:55,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55" (1/1) ... [2022-11-18 20:18:55,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55" (1/1) ... [2022-11-18 20:18:55,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55" (1/1) ... [2022-11-18 20:18:55,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55" (1/1) ... [2022-11-18 20:18:55,925 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55" (1/1) ... [2022-11-18 20:18:55,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55" (1/1) ... [2022-11-18 20:18:55,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:18:55,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:18:55,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:18:55,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:18:55,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55" (1/1) ... [2022-11-18 20:18:56,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:18:56,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:56,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:56,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:18:56,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-18 20:18:56,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-18 20:18:56,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 20:18:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2022-11-18 20:18:56,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2022-11-18 20:18:56,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2022-11-18 20:18:56,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2022-11-18 20:18:56,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2022-11-18 20:18:56,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2022-11-18 20:18:56,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2022-11-18 20:18:56,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2022-11-18 20:18:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 20:18:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 20:18:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-18 20:18:56,124 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-18 20:18:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 20:18:56,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 20:18:56,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:18:56,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_20 [2022-11-18 20:18:56,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_20 [2022-11-18 20:18:56,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-18 20:18:56,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-18 20:18:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 20:18:56,127 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 20:18:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-18 20:18:56,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-18 20:18:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 20:18:56,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 20:18:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-18 20:18:56,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-18 20:18:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-18 20:18:56,129 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-18 20:18:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-18 20:18:56,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-18 20:18:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 20:18:56,130 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 20:18:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_resume [2022-11-18 20:18:56,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_resume [2022-11-18 20:18:56,131 INFO L130 BoogieDeclarations]: Found specification of procedure kstrdup [2022-11-18 20:18:56,132 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrdup [2022-11-18 20:18:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-11-18 20:18:56,132 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-11-18 20:18:56,133 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_reset_resume [2022-11-18 20:18:56,133 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_reset_resume [2022-11-18 20:18:56,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:18:56,134 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 20:18:56,134 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 20:18:56,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 20:18:56,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 20:18:56,135 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-18 20:18:56,135 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-18 20:18:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 20:18:56,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 20:18:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 20:18:56,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 20:18:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:18:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:18:56,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:18:56,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-18 20:18:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-18 20:18:56,141 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_free_buffers [2022-11-18 20:18:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_free_buffers [2022-11-18 20:18:56,142 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_disconnect [2022-11-18 20:18:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_disconnect [2022-11-18 20:18:56,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2022-11-18 20:18:56,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2022-11-18 20:18:56,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:18:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-18 20:18:56,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-18 20:18:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:18:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:18:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-11-18 20:18:56,147 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-11-18 20:18:56,148 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-11-18 20:18:56,148 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-11-18 20:18:56,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:18:56,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:18:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-18 20:18:56,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-18 20:18:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:18:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-18 20:18:56,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-18 20:18:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2022-11-18 20:18:56,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2022-11-18 20:18:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_16 [2022-11-18 20:18:56,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_16 [2022-11-18 20:18:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2022-11-18 20:18:56,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2022-11-18 20:18:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_probe [2022-11-18 20:18:56,151 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_probe [2022-11-18 20:18:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:18:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2022-11-18 20:18:56,153 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2022-11-18 20:18:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:18:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2022-11-18 20:18:56,154 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2022-11-18 20:18:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_open [2022-11-18 20:18:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_open [2022-11-18 20:18:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_12 [2022-11-18 20:18:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_12 [2022-11-18 20:18:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-18 20:18:56,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-18 20:18:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-18 20:18:56,159 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-18 20:18:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-18 20:18:56,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-18 20:18:56,160 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_irq [2022-11-18 20:18:56,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_irq [2022-11-18 20:18:56,160 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-18 20:18:56,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-18 20:18:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_process_pkt [2022-11-18 20:18:56,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_process_pkt [2022-11-18 20:18:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-18 20:18:56,162 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-18 20:18:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2022-11-18 20:18:56,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2022-11-18 20:18:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-18 20:18:56,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-18 20:18:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:18:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure nexio_read_data [2022-11-18 20:18:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure nexio_read_data [2022-11-18 20:18:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-18 20:18:56,170 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-18 20:18:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 20:18:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-18 20:18:56,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-18 20:18:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:18:56,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:18:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2022-11-18 20:18:56,181 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2022-11-18 20:18:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_process_multi [2022-11-18 20:18:56,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_process_multi [2022-11-18 20:18:57,151 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:18:57,156 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:18:57,531 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 20:19:01,646 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-18 20:19:03,030 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:19:03,051 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:19:03,051 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:19:03,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:19:03 BoogieIcfgContainer [2022-11-18 20:19:03,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:19:03,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:19:03,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:19:03,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:19:03,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:18:52" (1/3) ... [2022-11-18 20:19:03,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2c5767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:19:03, skipping insertion in model container [2022-11-18 20:19:03,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:55" (2/3) ... [2022-11-18 20:19:03,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2c5767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:19:03, skipping insertion in model container [2022-11-18 20:19:03,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:19:03" (3/3) ... [2022-11-18 20:19:03,072 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i [2022-11-18 20:19:03,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:19:03,104 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:19:03,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:19:03,276 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;@5b471454, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:19:03,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:19:03,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 959 states, 694 states have (on average 1.3544668587896254) internal successors, (940), 713 states have internal predecessors, (940), 207 states have call successors, (207), 58 states have call predecessors, (207), 56 states have return successors, (201), 199 states have call predecessors, (201), 201 states have call successors, (201) [2022-11-18 20:19:03,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 20:19:03,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:03,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:03,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:03,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:03,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1258424551, now seen corresponding path program 1 times [2022-11-18 20:19:03,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:03,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841053035] [2022-11-18 20:19:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:03,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:04,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:19:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:04,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:19:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:04,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:04,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:04,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841053035] [2022-11-18 20:19:04,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841053035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:04,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:04,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:04,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210090600] [2022-11-18 20:19:04,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:04,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:19:04,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:04,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:19:04,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:19:04,679 INFO L87 Difference]: Start difference. First operand has 959 states, 694 states have (on average 1.3544668587896254) internal successors, (940), 713 states have internal predecessors, (940), 207 states have call successors, (207), 58 states have call predecessors, (207), 56 states have return successors, (201), 199 states have call predecessors, (201), 201 states have call successors, (201) Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:19:20,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:20,646 INFO L93 Difference]: Finished difference Result 3538 states and 5260 transitions. [2022-11-18 20:19:20,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:19:20,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-18 20:19:20,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:20,717 INFO L225 Difference]: With dead ends: 3538 [2022-11-18 20:19:20,718 INFO L226 Difference]: Without dead ends: 2560 [2022-11-18 20:19:20,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:19:20,756 INFO L413 NwaCegarLoop]: 1359 mSDtfsCounter, 3172 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 1492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3360 SdHoareTripleChecker+Valid, 3519 SdHoareTripleChecker+Invalid, 3958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1492 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:20,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3360 Valid, 3519 Invalid, 3958 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1492 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time] [2022-11-18 20:19:20,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2560 states. [2022-11-18 20:19:21,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2560 to 1859. [2022-11-18 20:19:21,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1355 states have (on average 1.3439114391143911) internal successors, (1821), 1372 states have internal predecessors, (1821), 393 states have call successors, (393), 111 states have call predecessors, (393), 110 states have return successors, (387), 383 states have call predecessors, (387), 387 states have call successors, (387) [2022-11-18 20:19:21,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2601 transitions. [2022-11-18 20:19:21,158 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2601 transitions. Word has length 28 [2022-11-18 20:19:21,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:21,159 INFO L495 AbstractCegarLoop]: Abstraction has 1859 states and 2601 transitions. [2022-11-18 20:19:21,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:19:21,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2601 transitions. [2022-11-18 20:19:21,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 20:19:21,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:21,174 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:21,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:19:21,175 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:21,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:21,176 INFO L85 PathProgramCache]: Analyzing trace with hash -640189051, now seen corresponding path program 1 times [2022-11-18 20:19:21,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:21,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568328934] [2022-11-18 20:19:21,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:21,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:21,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:19:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:21,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:19:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:21,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:19:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:21,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:19:21,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:21,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568328934] [2022-11-18 20:19:21,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568328934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:21,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:21,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:21,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023474555] [2022-11-18 20:19:21,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:21,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:19:21,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:21,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:19:21,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:19:21,547 INFO L87 Difference]: Start difference. First operand 1859 states and 2601 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:19:31,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:31,310 INFO L93 Difference]: Finished difference Result 2583 states and 3726 transitions. [2022-11-18 20:19:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:19:31,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-11-18 20:19:31,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:31,333 INFO L225 Difference]: With dead ends: 2583 [2022-11-18 20:19:31,334 INFO L226 Difference]: Without dead ends: 2570 [2022-11-18 20:19:31,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:19:31,344 INFO L413 NwaCegarLoop]: 1077 mSDtfsCounter, 2272 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 929 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 929 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:31,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 2125 Invalid, 2165 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [929 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-11-18 20:19:31,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2022-11-18 20:19:31,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 1859. [2022-11-18 20:19:31,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1355 states have (on average 1.3431734317343174) internal successors, (1820), 1372 states have internal predecessors, (1820), 393 states have call successors, (393), 111 states have call predecessors, (393), 110 states have return successors, (387), 383 states have call predecessors, (387), 387 states have call successors, (387) [2022-11-18 20:19:31,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2600 transitions. [2022-11-18 20:19:31,512 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2600 transitions. Word has length 38 [2022-11-18 20:19:31,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:31,513 INFO L495 AbstractCegarLoop]: Abstraction has 1859 states and 2600 transitions. [2022-11-18 20:19:31,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:19:31,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2600 transitions. [2022-11-18 20:19:31,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 20:19:31,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:31,517 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:31,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:19:31,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:31,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:31,521 INFO L85 PathProgramCache]: Analyzing trace with hash -582930749, now seen corresponding path program 1 times [2022-11-18 20:19:31,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:31,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606073455] [2022-11-18 20:19:31,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:31,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:19:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:32,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:19:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:32,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:19:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:32,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:19:32,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:32,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606073455] [2022-11-18 20:19:32,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606073455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:32,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:32,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:32,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765615768] [2022-11-18 20:19:32,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:32,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:19:32,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:32,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:19:32,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:19:32,422 INFO L87 Difference]: Start difference. First operand 1859 states and 2600 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:19:36,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:49,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:49,361 INFO L93 Difference]: Finished difference Result 6942 states and 10382 transitions. [2022-11-18 20:19:49,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:19:49,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-11-18 20:19:49,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:49,405 INFO L225 Difference]: With dead ends: 6942 [2022-11-18 20:19:49,406 INFO L226 Difference]: Without dead ends: 5097 [2022-11-18 20:19:49,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:19:49,421 INFO L413 NwaCegarLoop]: 1313 mSDtfsCounter, 3312 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 1556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3472 SdHoareTripleChecker+Valid, 3416 SdHoareTripleChecker+Invalid, 4023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1556 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:49,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3472 Valid, 3416 Invalid, 4023 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1556 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2022-11-18 20:19:49,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5097 states. [2022-11-18 20:19:49,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5097 to 4246. [2022-11-18 20:19:49,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4246 states, 3099 states have (on average 1.3275250080671184) internal successors, (4114), 3132 states have internal predecessors, (4114), 851 states have call successors, (851), 220 states have call predecessors, (851), 295 states have return successors, (1211), 909 states have call predecessors, (1211), 845 states have call successors, (1211) [2022-11-18 20:19:49,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4246 states to 4246 states and 6176 transitions. [2022-11-18 20:19:49,789 INFO L78 Accepts]: Start accepts. Automaton has 4246 states and 6176 transitions. Word has length 38 [2022-11-18 20:19:49,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:49,790 INFO L495 AbstractCegarLoop]: Abstraction has 4246 states and 6176 transitions. [2022-11-18 20:19:49,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:19:49,791 INFO L276 IsEmpty]: Start isEmpty. Operand 4246 states and 6176 transitions. [2022-11-18 20:19:49,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-18 20:19:49,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:49,792 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:49,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:19:49,793 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:49,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:49,794 INFO L85 PathProgramCache]: Analyzing trace with hash -891481876, now seen corresponding path program 1 times [2022-11-18 20:19:49,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:49,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935860346] [2022-11-18 20:19:49,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:49,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:50,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:19:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:50,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:19:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:50,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:19:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:50,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:19:50,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:50,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935860346] [2022-11-18 20:19:50,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935860346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:50,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:50,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:50,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003890253] [2022-11-18 20:19:50,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:50,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:19:50,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:50,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:19:50,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:19:50,686 INFO L87 Difference]: Start difference. First operand 4246 states and 6176 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:19:53,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:54,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:20:01,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:01,468 INFO L93 Difference]: Finished difference Result 5088 states and 7606 transitions. [2022-11-18 20:20:01,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:20:01,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-11-18 20:20:01,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:01,509 INFO L225 Difference]: With dead ends: 5088 [2022-11-18 20:20:01,509 INFO L226 Difference]: Without dead ends: 5085 [2022-11-18 20:20:01,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:20:01,518 INFO L413 NwaCegarLoop]: 1042 mSDtfsCounter, 2261 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 927 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 927 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:01,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2385 Valid, 2038 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [927 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2022-11-18 20:20:01,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5085 states. [2022-11-18 20:20:01,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5085 to 4245. [2022-11-18 20:20:01,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4245 states, 3099 states have (on average 1.3272023233301065) internal successors, (4113), 3131 states have internal predecessors, (4113), 850 states have call successors, (850), 220 states have call predecessors, (850), 295 states have return successors, (1211), 909 states have call predecessors, (1211), 845 states have call successors, (1211) [2022-11-18 20:20:01,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4245 states to 4245 states and 6174 transitions. [2022-11-18 20:20:01,942 INFO L78 Accepts]: Start accepts. Automaton has 4245 states and 6174 transitions. Word has length 39 [2022-11-18 20:20:01,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:01,946 INFO L495 AbstractCegarLoop]: Abstraction has 4245 states and 6174 transitions. [2022-11-18 20:20:01,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:20:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 4245 states and 6174 transitions. [2022-11-18 20:20:01,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-18 20:20:01,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:01,949 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:01,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:20:01,950 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:01,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:01,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1866627354, now seen corresponding path program 1 times [2022-11-18 20:20:01,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:01,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714373684] [2022-11-18 20:20:01,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:01,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:02,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:20:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:02,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:20:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:02,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:20:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:02,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:20:02,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:02,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714373684] [2022-11-18 20:20:02,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714373684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:02,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:02,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:20:02,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342774006] [2022-11-18 20:20:02,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:02,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:20:02,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:02,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:20:02,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:20:02,350 INFO L87 Difference]: Start difference. First operand 4245 states and 6174 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:20:11,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:11,187 INFO L93 Difference]: Finished difference Result 5087 states and 7604 transitions. [2022-11-18 20:20:11,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:20:11,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-11-18 20:20:11,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:11,228 INFO L225 Difference]: With dead ends: 5087 [2022-11-18 20:20:11,228 INFO L226 Difference]: Without dead ends: 5084 [2022-11-18 20:20:11,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:20:11,233 INFO L413 NwaCegarLoop]: 1027 mSDtfsCounter, 2300 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 942 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2423 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 942 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:11,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2423 Valid, 1989 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [942 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-18 20:20:11,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5084 states. [2022-11-18 20:20:11,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5084 to 4244. [2022-11-18 20:20:11,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4244 states, 3099 states have (on average 1.3268796385930945) internal successors, (4112), 3130 states have internal predecessors, (4112), 849 states have call successors, (849), 220 states have call predecessors, (849), 295 states have return successors, (1211), 909 states have call predecessors, (1211), 845 states have call successors, (1211) [2022-11-18 20:20:11,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4244 states to 4244 states and 6172 transitions. [2022-11-18 20:20:11,743 INFO L78 Accepts]: Start accepts. Automaton has 4244 states and 6172 transitions. Word has length 40 [2022-11-18 20:20:11,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:11,746 INFO L495 AbstractCegarLoop]: Abstraction has 4244 states and 6172 transitions. [2022-11-18 20:20:11,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:20:11,747 INFO L276 IsEmpty]: Start isEmpty. Operand 4244 states and 6172 transitions. [2022-11-18 20:20:11,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-18 20:20:11,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:11,750 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:11,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:20:11,751 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:11,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:11,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2031361233, now seen corresponding path program 1 times [2022-11-18 20:20:11,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:11,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568721258] [2022-11-18 20:20:11,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:11,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:12,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:20:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:12,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:20:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:12,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:20:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:12,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:20:12,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:12,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568721258] [2022-11-18 20:20:12,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568721258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:12,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:12,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:20:12,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762017277] [2022-11-18 20:20:12,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:12,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:20:12,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:12,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:20:12,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:20:12,121 INFO L87 Difference]: Start difference. First operand 4244 states and 6172 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:20:25,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:25,782 INFO L93 Difference]: Finished difference Result 14347 states and 22002 transitions. [2022-11-18 20:20:25,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:20:25,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-11-18 20:20:25,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:25,877 INFO L225 Difference]: With dead ends: 14347 [2022-11-18 20:20:25,877 INFO L226 Difference]: Without dead ends: 10117 [2022-11-18 20:20:25,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:20:25,918 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 3181 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 1491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3342 SdHoareTripleChecker+Valid, 3502 SdHoareTripleChecker+Invalid, 3859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1491 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:25,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3342 Valid, 3502 Invalid, 3859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1491 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2022-11-18 20:20:25,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10117 states. [2022-11-18 20:20:26,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10117 to 8695. [2022-11-18 20:20:26,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8695 states, 6351 states have (on average 1.3267202015430641) internal successors, (8426), 6411 states have internal predecessors, (8426), 1726 states have call successors, (1726), 435 states have call predecessors, (1726), 617 states have return successors, (2913), 1880 states have call predecessors, (2913), 1719 states have call successors, (2913) [2022-11-18 20:20:26,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8695 states to 8695 states and 13065 transitions. [2022-11-18 20:20:26,789 INFO L78 Accepts]: Start accepts. Automaton has 8695 states and 13065 transitions. Word has length 41 [2022-11-18 20:20:26,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:26,790 INFO L495 AbstractCegarLoop]: Abstraction has 8695 states and 13065 transitions. [2022-11-18 20:20:26,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:20:26,791 INFO L276 IsEmpty]: Start isEmpty. Operand 8695 states and 13065 transitions. [2022-11-18 20:20:26,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-18 20:20:26,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:26,793 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:26,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:20:26,793 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:26,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:26,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1451827977, now seen corresponding path program 1 times [2022-11-18 20:20:26,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:26,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902034637] [2022-11-18 20:20:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:26,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:27,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:20:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:20:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:27,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:20:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:27,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:20:27,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:27,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902034637] [2022-11-18 20:20:27,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902034637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:27,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:27,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:20:27,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978445161] [2022-11-18 20:20:27,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:27,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:20:27,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:27,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:20:27,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:20:27,142 INFO L87 Difference]: Start difference. First operand 8695 states and 13065 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:20:29,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:20:37,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:37,004 INFO L93 Difference]: Finished difference Result 10085 states and 15449 transitions. [2022-11-18 20:20:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:20:37,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-11-18 20:20:37,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:37,084 INFO L225 Difference]: With dead ends: 10085 [2022-11-18 20:20:37,085 INFO L226 Difference]: Without dead ends: 10073 [2022-11-18 20:20:37,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:20:37,095 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 2274 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 947 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2401 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 947 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:37,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2401 Valid, 2004 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [947 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2022-11-18 20:20:37,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10073 states. [2022-11-18 20:20:37,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10073 to 8685. [2022-11-18 20:20:37,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8685 states, 6342 states have (on average 1.326553137811416) internal successors, (8413), 6401 states have internal predecessors, (8413), 1725 states have call successors, (1725), 435 states have call predecessors, (1725), 617 states have return successors, (2913), 1880 states have call predecessors, (2913), 1719 states have call successors, (2913) [2022-11-18 20:20:37,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8685 states to 8685 states and 13051 transitions. [2022-11-18 20:20:37,967 INFO L78 Accepts]: Start accepts. Automaton has 8685 states and 13051 transitions. Word has length 42 [2022-11-18 20:20:37,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:37,968 INFO L495 AbstractCegarLoop]: Abstraction has 8685 states and 13051 transitions. [2022-11-18 20:20:37,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:20:37,969 INFO L276 IsEmpty]: Start isEmpty. Operand 8685 states and 13051 transitions. [2022-11-18 20:20:37,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-18 20:20:37,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:37,979 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:37,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:20:37,980 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:37,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:37,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1124782960, now seen corresponding path program 1 times [2022-11-18 20:20:37,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:37,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483590700] [2022-11-18 20:20:37,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:37,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:38,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:20:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:38,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:20:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:38,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:20:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:38,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:20:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:20:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:38,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:20:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:38,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:20:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:38,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 20:20:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:38,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:20:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:38,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:20:38,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:38,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483590700] [2022-11-18 20:20:38,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483590700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:38,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:38,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:20:38,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354234001] [2022-11-18 20:20:38,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:38,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:20:38,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:38,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:20:38,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:20:38,392 INFO L87 Difference]: Start difference. First operand 8685 states and 13051 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-18 20:20:50,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:50,659 INFO L93 Difference]: Finished difference Result 21495 states and 33464 transitions. [2022-11-18 20:20:50,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:20:50,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 87 [2022-11-18 20:20:50,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:50,729 INFO L225 Difference]: With dead ends: 21495 [2022-11-18 20:20:50,730 INFO L226 Difference]: Without dead ends: 12824 [2022-11-18 20:20:50,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:20:50,768 INFO L413 NwaCegarLoop]: 1103 mSDtfsCounter, 2854 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 2649 mSolverCounterSat, 1742 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 3921 SdHoareTripleChecker+Invalid, 4391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1742 IncrementalHoareTripleChecker+Valid, 2649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:50,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 3921 Invalid, 4391 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1742 Valid, 2649 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2022-11-18 20:20:50,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12824 states. [2022-11-18 20:20:51,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12824 to 10623. [2022-11-18 20:20:51,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10623 states, 7740 states have (on average 1.312015503875969) internal successors, (10155), 7793 states have internal predecessors, (10155), 2063 states have call successors, (2063), 437 states have call predecessors, (2063), 819 states have return successors, (4329), 2428 states have call predecessors, (4329), 2057 states have call successors, (4329) [2022-11-18 20:20:51,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10623 states to 10623 states and 16547 transitions. [2022-11-18 20:20:51,618 INFO L78 Accepts]: Start accepts. Automaton has 10623 states and 16547 transitions. Word has length 87 [2022-11-18 20:20:51,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:51,618 INFO L495 AbstractCegarLoop]: Abstraction has 10623 states and 16547 transitions. [2022-11-18 20:20:51,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-18 20:20:51,619 INFO L276 IsEmpty]: Start isEmpty. Operand 10623 states and 16547 transitions. [2022-11-18 20:20:51,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-18 20:20:51,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:51,625 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:51,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:20:51,626 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:51,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:51,627 INFO L85 PathProgramCache]: Analyzing trace with hash -969730910, now seen corresponding path program 1 times [2022-11-18 20:20:51,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:51,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839425436] [2022-11-18 20:20:51,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:51,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:51,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:20:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:51,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:20:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:52,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:20:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:52,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:20:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:52,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 20:20:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:52,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:20:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:52,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 20:20:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:52,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:20:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:52,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:20:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:52,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 20:20:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:52,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:20:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 20:20:52,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:52,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839425436] [2022-11-18 20:20:52,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839425436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:52,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:52,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:20:52,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195576635] [2022-11-18 20:20:52,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:52,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:20:52,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:52,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:20:52,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:20:52,287 INFO L87 Difference]: Start difference. First operand 10623 states and 16547 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-18 20:21:11,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:11,016 INFO L93 Difference]: Finished difference Result 35848 states and 56625 transitions. [2022-11-18 20:21:11,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:21:11,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 113 [2022-11-18 20:21:11,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:11,230 INFO L225 Difference]: With dead ends: 35848 [2022-11-18 20:21:11,231 INFO L226 Difference]: Without dead ends: 25247 [2022-11-18 20:21:11,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:21:11,280 INFO L413 NwaCegarLoop]: 1848 mSDtfsCounter, 4386 mSDsluCounter, 4082 mSDsCounter, 0 mSdLazyCounter, 4379 mSolverCounterSat, 3293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4569 SdHoareTripleChecker+Valid, 5930 SdHoareTripleChecker+Invalid, 7672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3293 IncrementalHoareTripleChecker+Valid, 4379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:11,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4569 Valid, 5930 Invalid, 7672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3293 Valid, 4379 Invalid, 0 Unknown, 0 Unchecked, 16.5s Time] [2022-11-18 20:21:11,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25247 states. [2022-11-18 20:21:13,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25247 to 20873. [2022-11-18 20:21:13,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20873 states, 15188 states have (on average 1.3084013695022385) internal successors, (19872), 15291 states have internal predecessors, (19872), 4053 states have call successors, (4053), 865 states have call predecessors, (4053), 1631 states have return successors, (8423), 4788 states have call predecessors, (8423), 4047 states have call successors, (8423) [2022-11-18 20:21:13,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20873 states to 20873 states and 32348 transitions. [2022-11-18 20:21:13,320 INFO L78 Accepts]: Start accepts. Automaton has 20873 states and 32348 transitions. Word has length 113 [2022-11-18 20:21:13,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:13,321 INFO L495 AbstractCegarLoop]: Abstraction has 20873 states and 32348 transitions. [2022-11-18 20:21:13,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-18 20:21:13,321 INFO L276 IsEmpty]: Start isEmpty. Operand 20873 states and 32348 transitions. [2022-11-18 20:21:13,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 20:21:13,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:13,329 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:13,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:21:13,330 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:13,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:13,330 INFO L85 PathProgramCache]: Analyzing trace with hash -737437178, now seen corresponding path program 1 times [2022-11-18 20:21:13,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:13,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341481781] [2022-11-18 20:21:13,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:13,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:21:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:21:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:21:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:21:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 20:21:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:21:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 20:21:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 20:21:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:21:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 20:21:13,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:13,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341481781] [2022-11-18 20:21:13,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341481781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:13,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:13,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:21:13,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330719482] [2022-11-18 20:21:13,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:13,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:21:13,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:13,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:21:13,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:21:13,863 INFO L87 Difference]: Start difference. First operand 20873 states and 32348 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:21:41,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:41,199 INFO L93 Difference]: Finished difference Result 61099 states and 96421 transitions. [2022-11-18 20:21:41,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 20:21:41,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 133 [2022-11-18 20:21:41,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:41,406 INFO L225 Difference]: With dead ends: 61099 [2022-11-18 20:21:41,406 INFO L226 Difference]: Without dead ends: 40248 [2022-11-18 20:21:41,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:21:41,509 INFO L413 NwaCegarLoop]: 1951 mSDtfsCounter, 3731 mSDsluCounter, 5052 mSDsCounter, 0 mSdLazyCounter, 5843 mSolverCounterSat, 2231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 7003 SdHoareTripleChecker+Invalid, 8074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2231 IncrementalHoareTripleChecker+Valid, 5843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:41,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3947 Valid, 7003 Invalid, 8074 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2231 Valid, 5843 Invalid, 0 Unknown, 0 Unchecked, 23.0s Time] [2022-11-18 20:21:41,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40248 states. [2022-11-18 20:21:45,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40248 to 31243. [2022-11-18 20:21:45,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31243 states, 22720 states have (on average 1.3074383802816902) internal successors, (29705), 22885 states have internal predecessors, (29705), 6055 states have call successors, (6055), 1293 states have call predecessors, (6055), 2467 states have return successors, (12553), 7172 states have call predecessors, (12553), 6049 states have call successors, (12553) [2022-11-18 20:21:45,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31243 states to 31243 states and 48313 transitions. [2022-11-18 20:21:45,339 INFO L78 Accepts]: Start accepts. Automaton has 31243 states and 48313 transitions. Word has length 133 [2022-11-18 20:21:45,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:45,340 INFO L495 AbstractCegarLoop]: Abstraction has 31243 states and 48313 transitions. [2022-11-18 20:21:45,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:21:45,340 INFO L276 IsEmpty]: Start isEmpty. Operand 31243 states and 48313 transitions. [2022-11-18 20:21:45,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-18 20:21:45,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:45,350 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:45,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:21:45,351 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:45,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:45,351 INFO L85 PathProgramCache]: Analyzing trace with hash -654835983, now seen corresponding path program 1 times [2022-11-18 20:21:45,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:45,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333831352] [2022-11-18 20:21:45,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:45,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:45,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:21:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:45,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:21:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:45,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:21:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:45,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:21:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:46,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:21:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:46,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 20:21:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 20:21:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 20:21:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 20:21:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:46,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 20:21:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:46,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:21:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:46,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-18 20:21:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:46,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:46,130 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:21:46,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:46,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333831352] [2022-11-18 20:21:46,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333831352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:46,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:46,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 20:21:46,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466302719] [2022-11-18 20:21:46,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:46,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:21:46,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:46,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:21:46,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:21:46,134 INFO L87 Difference]: Start difference. First operand 31243 states and 48313 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (20), 9 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-18 20:22:09,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:22:46,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:46,655 INFO L93 Difference]: Finished difference Result 114590 states and 200404 transitions. [2022-11-18 20:22:46,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-18 20:22:46,656 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (20), 9 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2022-11-18 20:22:46,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:47,658 INFO L225 Difference]: With dead ends: 114590 [2022-11-18 20:22:47,659 INFO L226 Difference]: Without dead ends: 83369 [2022-11-18 20:22:47,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=443, Invalid=1537, Unknown=0, NotChecked=0, Total=1980 [2022-11-18 20:22:47,807 INFO L413 NwaCegarLoop]: 2119 mSDtfsCounter, 7247 mSDsluCounter, 12770 mSDsCounter, 0 mSdLazyCounter, 17338 mSolverCounterSat, 6576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7458 SdHoareTripleChecker+Valid, 14889 SdHoareTripleChecker+Invalid, 23914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 6576 IncrementalHoareTripleChecker+Valid, 17338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:47,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7458 Valid, 14889 Invalid, 23914 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [6576 Valid, 17338 Invalid, 0 Unknown, 0 Unchecked, 49.5s Time] [2022-11-18 20:22:47,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83369 states. [2022-11-18 20:22:53,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83369 to 34149. [2022-11-18 20:22:53,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34149 states, 24676 states have (on average 1.3042227265359054) internal successors, (32183), 24751 states have internal predecessors, (32183), 6865 states have call successors, (6865), 1293 states have call predecessors, (6865), 2607 states have return successors, (14493), 8224 states have call predecessors, (14493), 6859 states have call successors, (14493) [2022-11-18 20:22:53,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34149 states to 34149 states and 53541 transitions. [2022-11-18 20:22:53,428 INFO L78 Accepts]: Start accepts. Automaton has 34149 states and 53541 transitions. Word has length 145 [2022-11-18 20:22:53,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:53,428 INFO L495 AbstractCegarLoop]: Abstraction has 34149 states and 53541 transitions. [2022-11-18 20:22:53,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (20), 9 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-18 20:22:53,429 INFO L276 IsEmpty]: Start isEmpty. Operand 34149 states and 53541 transitions. [2022-11-18 20:22:53,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-18 20:22:53,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:53,436 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:53,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:22:53,436 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:53,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:53,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1802220006, now seen corresponding path program 1 times [2022-11-18 20:22:53,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:53,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040715976] [2022-11-18 20:22:53,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:53,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:53,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:22:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:53,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:22:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:53,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:22:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:53,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:22:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:53,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:22:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:53,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:22:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:53,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 20:22:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:53,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:22:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:54,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:22:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:54,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 20:22:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:54,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:22:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:54,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 20:22:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:54,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:22:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:54,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 20:22:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:54,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:22:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:54,087 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:22:54,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:54,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040715976] [2022-11-18 20:22:54,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040715976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:54,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:54,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 20:22:54,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105214950] [2022-11-18 20:22:54,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:54,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:22:54,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:54,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:22:54,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:22:54,090 INFO L87 Difference]: Start difference. First operand 34149 states and 53541 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (19), 9 states have call predecessors, (19), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 20:23:01,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:23:16,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:23:45,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:45,009 INFO L93 Difference]: Finished difference Result 117552 states and 205704 transitions. [2022-11-18 20:23:45,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-18 20:23:45,010 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (19), 9 states have call predecessors, (19), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2022-11-18 20:23:45,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:45,642 INFO L225 Difference]: With dead ends: 117552 [2022-11-18 20:23:45,642 INFO L226 Difference]: Without dead ends: 83425 [2022-11-18 20:23:45,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=443, Invalid=1537, Unknown=0, NotChecked=0, Total=1980 [2022-11-18 20:23:45,763 INFO L413 NwaCegarLoop]: 2119 mSDtfsCounter, 8393 mSDsluCounter, 10459 mSDsCounter, 0 mSdLazyCounter, 13591 mSolverCounterSat, 8502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8600 SdHoareTripleChecker+Valid, 12578 SdHoareTripleChecker+Invalid, 22093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8502 IncrementalHoareTripleChecker+Valid, 13591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:45,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8600 Valid, 12578 Invalid, 22093 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8502 Valid, 13591 Invalid, 0 Unknown, 0 Unchecked, 37.9s Time] [2022-11-18 20:23:45,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83425 states. [2022-11-18 20:23:50,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83425 to 34149. [2022-11-18 20:23:50,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34149 states, 24676 states have (on average 1.3042227265359054) internal successors, (32183), 24751 states have internal predecessors, (32183), 6865 states have call successors, (6865), 1293 states have call predecessors, (6865), 2607 states have return successors, (14493), 8224 states have call predecessors, (14493), 6859 states have call successors, (14493) [2022-11-18 20:23:51,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34149 states to 34149 states and 53541 transitions. [2022-11-18 20:23:51,061 INFO L78 Accepts]: Start accepts. Automaton has 34149 states and 53541 transitions. Word has length 143 [2022-11-18 20:23:51,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:51,061 INFO L495 AbstractCegarLoop]: Abstraction has 34149 states and 53541 transitions. [2022-11-18 20:23:51,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (19), 9 states have call predecessors, (19), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 20:23:51,061 INFO L276 IsEmpty]: Start isEmpty. Operand 34149 states and 53541 transitions. [2022-11-18 20:23:51,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-18 20:23:51,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:51,067 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:51,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:23:51,068 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:51,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:51,069 INFO L85 PathProgramCache]: Analyzing trace with hash 639887037, now seen corresponding path program 1 times [2022-11-18 20:23:51,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:51,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91898468] [2022-11-18 20:23:51,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:51,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:23:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:23:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:23:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:23:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:23:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:23:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:23:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:23:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:23:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 20:23:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:23:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:23:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:23:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 20:23:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:23:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:23:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 20:23:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:23:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:23:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:23:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,855 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-18 20:23:51,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:51,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91898468] [2022-11-18 20:23:51,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91898468] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:51,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6352612] [2022-11-18 20:23:51,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:51,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:51,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:51,860 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:51,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2c7da1-9c19-4a5b-aba9-aba21fc49e51/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:23:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:52,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 3528 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:23:52,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:53,240 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-18 20:23:53,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:53,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6352612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:53,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:23:53,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-11-18 20:23:53,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365712500] [2022-11-18 20:23:53,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:53,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:53,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:53,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:53,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:23:53,255 INFO L87 Difference]: Start difference. First operand 34149 states and 53541 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:23:59,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:59,690 INFO L93 Difference]: Finished difference Result 80447 states and 126182 transitions. [2022-11-18 20:23:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:23:59,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2022-11-18 20:23:59,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:59,903 INFO L225 Difference]: With dead ends: 80447 [2022-11-18 20:23:59,904 INFO L226 Difference]: Without dead ends: 46320 [2022-11-18 20:24:00,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:24:00,029 INFO L413 NwaCegarLoop]: 2559 mSDtfsCounter, 1329 mSDsluCounter, 8777 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 11336 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:00,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 11336 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:24:00,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46320 states.