./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc --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 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 --- 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-5e519f3 [2022-11-02 20:33:29,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:33:29,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:33:29,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:33:29,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:33:29,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:33:29,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:33:29,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:33:29,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:33:29,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:33:29,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:33:29,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:33:29,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:33:29,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:33:29,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:33:29,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:33:29,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:33:29,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:33:29,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:33:29,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:33:29,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:33:29,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:33:29,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:33:29,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:33:29,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:33:29,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:33:29,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:33:29,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:33:29,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:33:29,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:33:29,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:33:29,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:33:29,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:33:29,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:33:29,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:33:29,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:33:29,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:33:29,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:33:29,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:33:29,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:33:29,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:33:29,445 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:33:29,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:33:29,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:33:29,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:33:29,474 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:33:29,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:33:29,475 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:33:29,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:33:29,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:33:29,477 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:33:29,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:33:29,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:33:29,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:33:29,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:33:29,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:33:29,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:33:29,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:33:29,480 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:33:29,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:33:29,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:33:29,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:33:29,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:33:29,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:33:29,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:33:29,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:33:29,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:33:29,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:33:29,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:33:29,484 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:33:29,484 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:33:29,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:33:29,485 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_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 [2022-11-02 20:33:29,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:33:29,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:33:29,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:33:29,917 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:33:29,919 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:33:29,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-11-02 20:33:30,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/data/dc92574cd/4f2a2cc34e7146e28c229afb970d9929/FLAGfd5b1effc [2022-11-02 20:33:31,273 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:33:31,274 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-11-02 20:33:31,343 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/data/dc92574cd/4f2a2cc34e7146e28c229afb970d9929/FLAGfd5b1effc [2022-11-02 20:33:31,537 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/data/dc92574cd/4f2a2cc34e7146e28c229afb970d9929 [2022-11-02 20:33:31,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:33:31,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:33:31,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:33:31,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:33:31,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:33:31,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:33:31" (1/1) ... [2022-11-02 20:33:31,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c6ed6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:31, skipping insertion in model container [2022-11-02 20:33:31,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:33:31" (1/1) ... [2022-11-02 20:33:31,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:33:31,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:33:33,545 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2022-11-02 20:33:34,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:33:35,031 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:33:35,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2022-11-02 20:33:35,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:33:36,013 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:33:36,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36 WrapperNode [2022-11-02 20:33:36,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:33:36,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:33:36,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:33:36,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:33:36,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36" (1/1) ... [2022-11-02 20:33:36,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36" (1/1) ... [2022-11-02 20:33:36,411 INFO L138 Inliner]: procedures = 247, calls = 2608, calls flagged for inlining = 135, calls inlined = 132, statements flattened = 6382 [2022-11-02 20:33:36,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:33:36,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:33:36,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:33:36,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:33:36,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36" (1/1) ... [2022-11-02 20:33:36,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36" (1/1) ... [2022-11-02 20:33:36,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36" (1/1) ... [2022-11-02 20:33:36,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36" (1/1) ... [2022-11-02 20:33:36,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36" (1/1) ... [2022-11-02 20:33:36,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36" (1/1) ... [2022-11-02 20:33:36,957 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36" (1/1) ... [2022-11-02 20:33:36,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36" (1/1) ... [2022-11-02 20:33:37,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:33:37,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:33:37,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:33:37,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:33:37,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36" (1/1) ... [2022-11-02 20:33:37,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:33:37,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:33:37,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:33:37,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3496032-dee9-4e32-adc1-50ff4972a175/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:33:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2022-11-02 20:33:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2022-11-02 20:33:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pm_wakeup_card [2022-11-02 20:33:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pm_wakeup_card [2022-11-02 20:33:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:33:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:33:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:33:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:33:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-02 20:33:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-02 20:33:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_cmdrsp_buf [2022-11-02 20:33:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_cmdrsp_buf [2022-11-02 20:33:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:33:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:33:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2022-11-02 20:33:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2022-11-02 20:33:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2022-11-02 20:33:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2022-11-02 20:33:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-02 20:33:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-02 20:33:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-02 20:33:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-02 20:33:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_read_reg [2022-11-02 20:33:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_read_reg [2022-11-02 20:33:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_map_pci_memory [2022-11-02 20:33:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_map_pci_memory [2022-11-02 20:33:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_reg [2022-11-02 20:33:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_reg [2022-11-02 20:33:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:33:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:33:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-02 20:33:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-02 20:33:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:33:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:33:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:33:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:33:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-02 20:33:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-02 20:33:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:33:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:33:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_process_event_ready [2022-11-02 20:33:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_process_event_ready [2022-11-02 20:33:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:33:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:33:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-02 20:33:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-02 20:33:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-02 20:33:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 20:33:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 20:33:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unmap_pci_memory [2022-11-02 20:33:37,181 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unmap_pci_memory [2022-11-02 20:33:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:33:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:33:37,182 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_clean_pcie_ring_buf [2022-11-02 20:33:37,182 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_clean_pcie_ring_buf [2022-11-02 20:33:37,183 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_dev_wakeup_delay [2022-11-02 20:33:37,183 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_dev_wakeup_delay [2022-11-02 20:33:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_ok_to_access_hw [2022-11-02 20:33:37,185 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_ok_to_access_hw [2022-11-02 20:33:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-02 20:33:37,185 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-02 20:33:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_DMA_ADDR [2022-11-02 20:33:37,186 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_DMA_ADDR [2022-11-02 20:33:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:33:37,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-02 20:33:37,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-02 20:33:37,187 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-02 20:33:37,188 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-02 20:33:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_resume [2022-11-02 20:33:37,189 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_resume [2022-11-02 20:33:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_txbd_ring [2022-11-02 20:33:37,190 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_txbd_ring [2022-11-02 20:33:37,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:33:37,190 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_suspend [2022-11-02 20:33:37,190 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_suspend [2022-11-02 20:33:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:33:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-02 20:33:37,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-02 20:33:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:33:37,191 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:33:37,192 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_enable_host_int [2022-11-02 20:33:37,192 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_enable_host_int [2022-11-02 20:33:37,192 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_disable_host_int [2022-11-02 20:33:37,192 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_disable_host_int [2022-11-02 20:33:37,192 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_not_full [2022-11-02 20:33:37,192 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_not_full [2022-11-02 20:33:37,193 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-02 20:33:37,193 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-02 20:33:37,193 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_evtbd_ring [2022-11-02 20:33:37,194 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_evtbd_ring [2022-11-02 20:33:37,194 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:33:37,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:33:37,195 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-02 20:33:37,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-02 20:33:37,195 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-02 20:33:37,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-02 20:33:37,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:33:37,197 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-02 20:33:37,197 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-02 20:33:37,197 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-02 20:33:37,198 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-02 20:33:37,198 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-11-02 20:33:37,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-11-02 20:33:37,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:33:37,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:33:37,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:33:37,201 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-02 20:33:37,201 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-02 20:33:37,201 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_remove [2022-11-02 20:33:37,201 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_remove [2022-11-02 20:33:37,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:33:37,202 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2022-11-02 20:33:37,202 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2022-11-02 20:33:37,202 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_rxbd_ring [2022-11-02 20:33:37,203 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_rxbd_ring [2022-11-02 20:33:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:33:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-02 20:33:37,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-02 20:33:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-02 20:33:37,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-02 20:33:37,209 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_PACB [2022-11-02 20:33:37,209 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_PACB [2022-11-02 20:33:37,209 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-02 20:33:37,210 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-02 20:33:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:33:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-11-02 20:33:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:33:37,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:33:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_complete [2022-11-02 20:33:37,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_complete [2022-11-02 20:33:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_empty [2022-11-02 20:33:37,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_empty [2022-11-02 20:33:38,488 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:33:38,496 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:33:40,014 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:33:50,080 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:33:50,117 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:33:50,121 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:33:50,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:33:50 BoogieIcfgContainer [2022-11-02 20:33:50,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:33:50,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:33:50,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:33:50,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:33:50,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:33:31" (1/3) ... [2022-11-02 20:33:50,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34efc3fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:33:50, skipping insertion in model container [2022-11-02 20:33:50,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:33:36" (2/3) ... [2022-11-02 20:33:50,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34efc3fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:33:50, skipping insertion in model container [2022-11-02 20:33:50,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:33:50" (3/3) ... [2022-11-02 20:33:50,141 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-11-02 20:33:50,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:33:50,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:33:50,371 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:33:50,379 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;@15dfeac6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:33:50,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:33:50,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 1562 states, 1189 states have (on average 1.4137931034482758) internal successors, (1681), 1210 states have internal predecessors, (1681), 315 states have call successors, (315), 57 states have call predecessors, (315), 56 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) [2022-11-02 20:33:50,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-02 20:33:50,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:33:50,423 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:33:50,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:33:50,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:33:50,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1790507018, now seen corresponding path program 1 times [2022-11-02 20:33:50,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:33:50,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143363229] [2022-11-02 20:33:50,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:33:50,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:33:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:33:51,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:33:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:33:51,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:33:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:33:51,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:33:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:33:51,643 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-02 20:33:51,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:33:51,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143363229] [2022-11-02 20:33:51,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143363229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:33:51,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:33:51,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:33:51,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232077015] [2022-11-02 20:33:51,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:33:51,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:33:51,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:33:51,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:33:51,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:33:51,720 INFO L87 Difference]: Start difference. First operand has 1562 states, 1189 states have (on average 1.4137931034482758) internal successors, (1681), 1210 states have internal predecessors, (1681), 315 states have call successors, (315), 57 states have call predecessors, (315), 56 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 20:33:54,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:34:04,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:04,111 INFO L93 Difference]: Finished difference Result 4845 states and 7288 transitions. [2022-11-02 20:34:04,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:34:04,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 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 [2022-11-02 20:34:04,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:04,206 INFO L225 Difference]: With dead ends: 4845 [2022-11-02 20:34:04,209 INFO L226 Difference]: Without dead ends: 3260 [2022-11-02 20:34:04,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:34:04,238 INFO L413 NwaCegarLoop]: 2533 mSDtfsCounter, 2777 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 776 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2974 SdHoareTripleChecker+Valid, 5609 SdHoareTripleChecker+Invalid, 2193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 776 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:04,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2974 Valid, 5609 Invalid, 2193 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [776 Valid, 1416 Invalid, 1 Unknown, 0 Unchecked, 11.7s Time] [2022-11-02 20:34:04,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3260 states. [2022-11-02 20:34:04,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3260 to 3042. [2022-11-02 20:34:04,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 2325 states have (on average 1.4055913978494623) internal successors, (3268), 2349 states have internal predecessors, (3268), 606 states have call successors, (606), 111 states have call predecessors, (606), 110 states have return successors, (605), 605 states have call predecessors, (605), 605 states have call successors, (605) [2022-11-02 20:34:04,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 4479 transitions. [2022-11-02 20:34:04,601 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 4479 transitions. Word has length 39 [2022-11-02 20:34:04,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:04,602 INFO L495 AbstractCegarLoop]: Abstraction has 3042 states and 4479 transitions. [2022-11-02 20:34:04,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 20:34:04,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 4479 transitions. [2022-11-02 20:34:04,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-02 20:34:04,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:04,619 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:34:04,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:34:04,620 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:34:04,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:04,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1277499630, now seen corresponding path program 1 times [2022-11-02 20:34:04,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:04,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145380818] [2022-11-02 20:34:04,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:04,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:05,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:34:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:05,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:34:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:05,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:34:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:05,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:34:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:05,783 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-02 20:34:05,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:05,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145380818] [2022-11-02 20:34:05,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145380818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:05,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:05,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:34:05,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782743878] [2022-11-02 20:34:05,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:05,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:05,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:05,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:05,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:05,798 INFO L87 Difference]: Start difference. First operand 3042 states and 4479 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 20:34:08,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:34:15,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:34:22,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:22,849 INFO L93 Difference]: Finished difference Result 9539 states and 14216 transitions. [2022-11-02 20:34:22,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:34:22,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2022-11-02 20:34:22,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:22,926 INFO L225 Difference]: With dead ends: 9539 [2022-11-02 20:34:22,932 INFO L226 Difference]: Without dead ends: 6498 [2022-11-02 20:34:22,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:34:22,961 INFO L413 NwaCegarLoop]: 2562 mSDtfsCounter, 2780 mSDsluCounter, 7072 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 756 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2980 SdHoareTripleChecker+Valid, 9634 SdHoareTripleChecker+Invalid, 3566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 756 IncrementalHoareTripleChecker+Valid, 2808 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:22,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2980 Valid, 9634 Invalid, 3566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [756 Valid, 2808 Invalid, 2 Unknown, 0 Unchecked, 16.2s Time] [2022-11-02 20:34:22,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6498 states. [2022-11-02 20:34:23,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6498 to 6092. [2022-11-02 20:34:23,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6092 states, 4657 states have (on average 1.4056259394459953) internal successors, (6546), 4707 states have internal predecessors, (6546), 1208 states have call successors, (1208), 221 states have call predecessors, (1208), 226 states have return successors, (1237), 1211 states have call predecessors, (1237), 1207 states have call successors, (1237) [2022-11-02 20:34:23,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6092 states to 6092 states and 8991 transitions. [2022-11-02 20:34:23,398 INFO L78 Accepts]: Start accepts. Automaton has 6092 states and 8991 transitions. Word has length 49 [2022-11-02 20:34:23,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:23,402 INFO L495 AbstractCegarLoop]: Abstraction has 6092 states and 8991 transitions. [2022-11-02 20:34:23,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 20:34:23,403 INFO L276 IsEmpty]: Start isEmpty. Operand 6092 states and 8991 transitions. [2022-11-02 20:34:23,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-02 20:34:23,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:23,428 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-02 20:34:23,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:34:23,428 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:34:23,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:23,429 INFO L85 PathProgramCache]: Analyzing trace with hash 41662539, now seen corresponding path program 1 times [2022-11-02 20:34:23,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:23,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42960520] [2022-11-02 20:34:23,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:23,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:23,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:34:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:23,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:34:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:23,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:34:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:23,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-02 20:34:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:24,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:34:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:24,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:34:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:24,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-02 20:34:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:24,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:34:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:24,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:34:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:24,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 20:34:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:24,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:34:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-02 20:34:24,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:24,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42960520] [2022-11-02 20:34:24,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42960520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:24,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:24,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:34:24,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412368871] [2022-11-02 20:34:24,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:24,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:34:24,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:24,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:34:24,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:34:24,325 INFO L87 Difference]: Start difference. First operand 6092 states and 8991 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:34:26,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:34:34,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:34,961 INFO L93 Difference]: Finished difference Result 13999 states and 20777 transitions. [2022-11-02 20:34:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:34:34,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2022-11-02 20:34:34,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:35,033 INFO L225 Difference]: With dead ends: 13999 [2022-11-02 20:34:35,034 INFO L226 Difference]: Without dead ends: 7917 [2022-11-02 20:34:35,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:34:35,076 INFO L413 NwaCegarLoop]: 2216 mSDtfsCounter, 1720 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 1188 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1767 SdHoareTripleChecker+Valid, 5024 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1188 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:35,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1767 Valid, 5024 Invalid, 2581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1188 Valid, 1392 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2022-11-02 20:34:35,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-11-02 20:34:35,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7421. [2022-11-02 20:34:35,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7421 states, 5764 states have (on average 1.4191533657182511) internal successors, (8180), 5814 states have internal predecessors, (8180), 1361 states have call successors, (1361), 290 states have call predecessors, (1361), 295 states have return successors, (1390), 1364 states have call predecessors, (1390), 1360 states have call successors, (1390) [2022-11-02 20:34:35,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7421 states to 7421 states and 10931 transitions. [2022-11-02 20:34:35,572 INFO L78 Accepts]: Start accepts. Automaton has 7421 states and 10931 transitions. Word has length 117 [2022-11-02 20:34:35,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:35,573 INFO L495 AbstractCegarLoop]: Abstraction has 7421 states and 10931 transitions. [2022-11-02 20:34:35,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 20:34:35,574 INFO L276 IsEmpty]: Start isEmpty. Operand 7421 states and 10931 transitions. [2022-11-02 20:34:35,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-02 20:34:35,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:35,692 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2022-11-02 20:34:35,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:34:35,692 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:34:35,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:35,693 INFO L85 PathProgramCache]: Analyzing trace with hash -2139715759, now seen corresponding path program 1 times [2022-11-02 20:34:35,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:35,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288816771] [2022-11-02 20:34:35,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:35,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:36,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:34:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:36,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:34:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:36,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:34:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:36,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:34:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:36,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-02 20:34:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:36,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 20:34:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:36,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:34:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:36,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-02 20:34:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:37,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-02 20:34:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:37,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-02 20:34:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:37,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:34:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-02 20:34:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:37,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:34:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:37,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:34:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-02 20:34:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-02 20:34:37,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:37,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288816771] [2022-11-02 20:34:37,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288816771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:37,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:37,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:34:37,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543686768] [2022-11-02 20:34:37,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:37,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:34:37,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:37,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:34:37,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:34:37,539 INFO L87 Difference]: Start difference. First operand 7421 states and 10931 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-02 20:34:40,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:34:53,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:34:53,352 INFO L93 Difference]: Finished difference Result 15293 states and 22715 transitions. [2022-11-02 20:34:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:34:53,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 157 [2022-11-02 20:34:53,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:34:53,415 INFO L225 Difference]: With dead ends: 15293 [2022-11-02 20:34:53,415 INFO L226 Difference]: Without dead ends: 7889 [2022-11-02 20:34:53,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:34:53,451 INFO L413 NwaCegarLoop]: 2179 mSDtfsCounter, 603 mSDsluCounter, 7383 mSDsCounter, 0 mSdLazyCounter, 3124 mSolverCounterSat, 685 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 9562 SdHoareTripleChecker+Invalid, 3810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 685 IncrementalHoareTripleChecker+Valid, 3124 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:34:53,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 9562 Invalid, 3810 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [685 Valid, 3124 Invalid, 1 Unknown, 0 Unchecked, 15.2s Time] [2022-11-02 20:34:53,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7889 states. [2022-11-02 20:34:53,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7889 to 7421. [2022-11-02 20:34:53,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7421 states, 5760 states have (on average 1.4180555555555556) internal successors, (8168), 5812 states have internal predecessors, (8168), 1361 states have call successors, (1361), 290 states have call predecessors, (1361), 299 states have return successors, (1398), 1366 states have call predecessors, (1398), 1360 states have call successors, (1398) [2022-11-02 20:34:53,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7421 states to 7421 states and 10927 transitions. [2022-11-02 20:34:53,959 INFO L78 Accepts]: Start accepts. Automaton has 7421 states and 10927 transitions. Word has length 157 [2022-11-02 20:34:53,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:34:53,962 INFO L495 AbstractCegarLoop]: Abstraction has 7421 states and 10927 transitions. [2022-11-02 20:34:53,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-02 20:34:53,963 INFO L276 IsEmpty]: Start isEmpty. Operand 7421 states and 10927 transitions. [2022-11-02 20:34:53,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-02 20:34:53,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:34:53,986 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 3, 3, 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] [2022-11-02 20:34:53,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:34:53,987 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:34:53,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:34:53,987 INFO L85 PathProgramCache]: Analyzing trace with hash -55648936, now seen corresponding path program 1 times [2022-11-02 20:34:53,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:34:53,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074414891] [2022-11-02 20:34:53,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:34:53,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:34:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:34:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:34:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:34:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:34:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-02 20:34:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 20:34:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:34:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-02 20:34:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-02 20:34:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-02 20:34:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:34:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-02 20:34:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:34:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:34:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:34:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-02 20:34:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:34:55,810 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-02 20:34:55,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:34:55,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074414891] [2022-11-02 20:34:55,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074414891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:34:55,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:34:55,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:34:55,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780111920] [2022-11-02 20:34:55,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:34:55,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:34:55,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:34:55,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:34:55,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:34:55,816 INFO L87 Difference]: Start difference. First operand 7421 states and 10927 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:34:58,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:35:06,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:35:07,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:35:07,488 INFO L93 Difference]: Finished difference Result 15369 states and 22867 transitions. [2022-11-02 20:35:07,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:35:07,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2022-11-02 20:35:07,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:35:07,549 INFO L225 Difference]: With dead ends: 15369 [2022-11-02 20:35:07,549 INFO L226 Difference]: Without dead ends: 7965 [2022-11-02 20:35:07,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:35:07,588 INFO L413 NwaCegarLoop]: 2181 mSDtfsCounter, 909 mSDsluCounter, 6281 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 1026 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 8462 SdHoareTripleChecker+Invalid, 3509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1026 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:35:07,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 8462 Invalid, 3509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1026 Valid, 2482 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2022-11-02 20:35:07,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7965 states. [2022-11-02 20:35:08,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7965 to 7453. [2022-11-02 20:35:08,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7453 states, 5784 states have (on average 1.4163208852005533) internal successors, (8192), 5836 states have internal predecessors, (8192), 1361 states have call successors, (1361), 290 states have call predecessors, (1361), 307 states have return successors, (1462), 1374 states have call predecessors, (1462), 1360 states have call successors, (1462) [2022-11-02 20:35:08,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7453 states to 7453 states and 11015 transitions. [2022-11-02 20:35:08,210 INFO L78 Accepts]: Start accepts. Automaton has 7453 states and 11015 transitions. Word has length 164 [2022-11-02 20:35:08,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:35:08,212 INFO L495 AbstractCegarLoop]: Abstraction has 7453 states and 11015 transitions. [2022-11-02 20:35:08,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:35:08,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7453 states and 11015 transitions. [2022-11-02 20:35:08,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-02 20:35:08,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:35:08,237 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 3, 3, 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] [2022-11-02 20:35:08,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:35:08,238 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:35:08,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:35:08,243 INFO L85 PathProgramCache]: Analyzing trace with hash -717777381, now seen corresponding path program 1 times [2022-11-02 20:35:08,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:35:08,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130544503] [2022-11-02 20:35:08,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:35:08,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:35:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:09,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:35:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:09,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:35:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:09,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:35:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:35:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-02 20:35:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 20:35:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:35:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-02 20:35:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-02 20:35:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-02 20:35:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:35:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-02 20:35:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:35:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:35:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:35:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-02 20:35:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-02 20:35:10,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:35:10,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130544503] [2022-11-02 20:35:10,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130544503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:35:10,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:35:10,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:35:10,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234756857] [2022-11-02 20:35:10,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:35:10,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:35:10,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:35:10,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:35:10,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:35:10,275 INFO L87 Difference]: Start difference. First operand 7453 states and 11015 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:35:12,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:35:15,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:35:34,856 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 [] [2022-11-02 20:35:38,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:35:38,811 INFO L93 Difference]: Finished difference Result 15790 states and 23451 transitions. [2022-11-02 20:35:38,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:35:38,814 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 166 [2022-11-02 20:35:38,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:35:38,866 INFO L225 Difference]: With dead ends: 15790 [2022-11-02 20:35:38,867 INFO L226 Difference]: Without dead ends: 8344 [2022-11-02 20:35:38,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:35:38,892 INFO L413 NwaCegarLoop]: 4240 mSDtfsCounter, 2770 mSDsluCounter, 12722 mSDsCounter, 0 mSdLazyCounter, 5623 mSolverCounterSat, 846 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2967 SdHoareTripleChecker+Valid, 16962 SdHoareTripleChecker+Invalid, 6471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 5623 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:35:38,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2967 Valid, 16962 Invalid, 6471 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [846 Valid, 5623 Invalid, 2 Unknown, 0 Unchecked, 27.7s Time] [2022-11-02 20:35:38,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8344 states. [2022-11-02 20:35:39,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8344 to 7492. [2022-11-02 20:35:39,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7492 states, 5814 states have (on average 1.41468868249054) internal successors, (8225), 5869 states have internal predecessors, (8225), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 310 states have return successors, (1468), 1377 states have call predecessors, (1468), 1366 states have call successors, (1468) [2022-11-02 20:35:39,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7492 states to 7492 states and 11060 transitions. [2022-11-02 20:35:39,554 INFO L78 Accepts]: Start accepts. Automaton has 7492 states and 11060 transitions. Word has length 166 [2022-11-02 20:35:39,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:35:39,555 INFO L495 AbstractCegarLoop]: Abstraction has 7492 states and 11060 transitions. [2022-11-02 20:35:39,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:35:39,556 INFO L276 IsEmpty]: Start isEmpty. Operand 7492 states and 11060 transitions. [2022-11-02 20:35:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-02 20:35:39,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:35:39,578 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:35:39,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:35:39,578 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:35:39,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:35:39,582 INFO L85 PathProgramCache]: Analyzing trace with hash -123678410, now seen corresponding path program 1 times [2022-11-02 20:35:39,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:35:39,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145307826] [2022-11-02 20:35:39,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:35:39,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:35:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:43,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:35:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:43,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:35:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:43,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:35:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:35:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:43,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-02 20:35:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:43,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 20:35:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:43,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 20:35:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:43,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-02 20:35:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:43,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-02 20:35:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:43,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-02 20:35:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:44,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:35:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:44,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:35:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:44,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-02 20:35:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:44,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:35:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:35:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:45,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:35:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:45,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-02 20:35:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:35:45,629 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-11-02 20:35:45,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:35:45,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145307826] [2022-11-02 20:35:45,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145307826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:35:45,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:35:45,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-02 20:35:45,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339349406] [2022-11-02 20:35:45,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:35:45,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:35:45,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:35:45,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:35:45,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:35:45,633 INFO L87 Difference]: Start difference. First operand 7492 states and 11060 transitions. Second operand has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 11 states have internal predecessors, (111), 3 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-02 20:35:49,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:06,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:18,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:22,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:22,207 INFO L93 Difference]: Finished difference Result 19805 states and 30193 transitions. [2022-11-02 20:36:22,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 20:36:22,212 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 11 states have internal predecessors, (111), 3 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 3 states have call successors, (17) Word has length 172 [2022-11-02 20:36:22,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:22,280 INFO L225 Difference]: With dead ends: 19805 [2022-11-02 20:36:22,280 INFO L226 Difference]: Without dead ends: 12330 [2022-11-02 20:36:22,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:36:22,309 INFO L413 NwaCegarLoop]: 3647 mSDtfsCounter, 1398 mSDsluCounter, 39149 mSDsCounter, 0 mSdLazyCounter, 11041 mSolverCounterSat, 350 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 42796 SdHoareTripleChecker+Invalid, 11393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 11041 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:22,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 42796 Invalid, 11393 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [350 Valid, 11041 Invalid, 2 Unknown, 0 Unchecked, 35.1s Time] [2022-11-02 20:36:22,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12330 states. [2022-11-02 20:36:23,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12330 to 7506. [2022-11-02 20:36:23,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 5826 states have (on average 1.4131479574322006) internal successors, (8233), 5877 states have internal predecessors, (8233), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 312 states have return successors, (1478), 1383 states have call predecessors, (1478), 1366 states have call successors, (1478) [2022-11-02 20:36:23,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 11078 transitions. [2022-11-02 20:36:23,159 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 11078 transitions. Word has length 172 [2022-11-02 20:36:23,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:23,160 INFO L495 AbstractCegarLoop]: Abstraction has 7506 states and 11078 transitions. [2022-11-02 20:36:23,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 11 states have internal predecessors, (111), 3 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-02 20:36:23,160 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 11078 transitions. [2022-11-02 20:36:23,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-02 20:36:23,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:23,182 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:23,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:36:23,183 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:23,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:23,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1247287038, now seen corresponding path program 1 times [2022-11-02 20:36:23,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:23,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090573591] [2022-11-02 20:36:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:23,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:36:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:36:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:36:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:36:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-02 20:36:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 20:36:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 20:36:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-02 20:36:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-02 20:36:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-02 20:36:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:36:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:36:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-02 20:36:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:36:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:36:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:36:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-02 20:36:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:24,287 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-11-02 20:36:24,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:24,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090573591] [2022-11-02 20:36:24,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090573591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:24,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:24,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:36:24,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334110949] [2022-11-02 20:36:24,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:24,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:24,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:24,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:24,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:24,292 INFO L87 Difference]: Start difference. First operand 7506 states and 11078 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-02 20:36:26,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:28,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:36:46,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:36:46,852 INFO L93 Difference]: Finished difference Result 19819 states and 30163 transitions. [2022-11-02 20:36:46,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:36:46,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 178 [2022-11-02 20:36:46,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:36:46,929 INFO L225 Difference]: With dead ends: 19819 [2022-11-02 20:36:46,930 INFO L226 Difference]: Without dead ends: 12330 [2022-11-02 20:36:46,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:46,960 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1679 mSDsluCounter, 5804 mSDsCounter, 0 mSdLazyCounter, 2748 mSolverCounterSat, 718 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1935 SdHoareTripleChecker+Valid, 9400 SdHoareTripleChecker+Invalid, 3468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 2748 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:36:46,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1935 Valid, 9400 Invalid, 3468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [718 Valid, 2748 Invalid, 2 Unknown, 0 Unchecked, 21.5s Time] [2022-11-02 20:36:46,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12330 states. [2022-11-02 20:36:47,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12330 to 7510. [2022-11-02 20:36:47,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 5830 states have (on average 1.4128644939965695) internal successors, (8237), 5881 states have internal predecessors, (8237), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 312 states have return successors, (1478), 1383 states have call predecessors, (1478), 1366 states have call successors, (1478) [2022-11-02 20:36:47,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 11082 transitions. [2022-11-02 20:36:47,765 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 11082 transitions. Word has length 178 [2022-11-02 20:36:47,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:36:47,766 INFO L495 AbstractCegarLoop]: Abstraction has 7510 states and 11082 transitions. [2022-11-02 20:36:47,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-02 20:36:47,767 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 11082 transitions. [2022-11-02 20:36:47,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-02 20:36:47,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:36:47,787 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:47,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:36:47,788 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:36:47,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:47,789 INFO L85 PathProgramCache]: Analyzing trace with hash -494582719, now seen corresponding path program 1 times [2022-11-02 20:36:47,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:47,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904932351] [2022-11-02 20:36:47,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:47,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms