./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.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_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/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_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/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_14efe26d-ad6a-4347-80e4-ee3869c06fac/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 2259272f0273dfac0cad582092d6645e308d8387476548b6016b816b129472dc --- 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 21:05:35,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:05:35,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:05:35,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:05:35,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:05:35,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:05:35,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:05:35,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:05:35,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:05:35,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:05:35,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:05:35,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:05:35,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:05:35,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:05:35,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:05:35,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:05:35,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:05:35,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:05:35,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:05:35,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:05:35,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:05:35,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:05:35,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:05:35,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:05:35,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:05:35,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:05:35,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:05:35,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:05:35,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:05:35,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:05:35,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:05:35,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:05:35,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:05:35,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:05:35,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:05:35,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:05:35,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:05:35,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:05:35,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:05:35,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:05:35,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:05:35,606 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 21:05:35,641 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:05:35,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:05:35,641 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:05:35,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:05:35,642 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:05:35,643 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:05:35,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:05:35,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:05:35,644 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:05:35,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:05:35,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:05:35,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:05:35,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:05:35,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:05:35,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:05:35,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:05:35,646 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:05:35,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:05:35,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:05:35,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:05:35,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:05:35,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:05:35,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:05:35,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:05:35,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:05:35,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:05:35,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:05:35,653 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:05:35,654 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:05:35,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:05:35,656 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_14efe26d-ad6a-4347-80e4-ee3869c06fac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2259272f0273dfac0cad582092d6645e308d8387476548b6016b816b129472dc [2022-11-02 21:05:35,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:05:35,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:05:35,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:05:35,995 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:05:35,996 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:05:35,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i [2022-11-02 21:05:36,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/data/6bef88197/2d78e0d4700f4c4aa3ece1a17e1c7a2d/FLAG80a37796b [2022-11-02 21:05:36,960 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:05:36,961 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i [2022-11-02 21:05:36,993 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/data/6bef88197/2d78e0d4700f4c4aa3ece1a17e1c7a2d/FLAG80a37796b [2022-11-02 21:05:37,452 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/data/6bef88197/2d78e0d4700f4c4aa3ece1a17e1c7a2d [2022-11-02 21:05:37,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:05:37,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:05:37,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:05:37,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:05:37,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:05:37,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:05:37" (1/1) ... [2022-11-02 21:05:37,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f0feba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:37, skipping insertion in model container [2022-11-02 21:05:37,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:05:37" (1/1) ... [2022-11-02 21:05:37,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:05:37,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:05:39,096 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_14efe26d-ad6a-4347-80e4-ee3869c06fac/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i[160403,160416] [2022-11-02 21:05:39,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:05:39,333 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:05:39,610 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_14efe26d-ad6a-4347-80e4-ee3869c06fac/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i[160403,160416] [2022-11-02 21:05:39,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:05:39,723 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:05:39,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39 WrapperNode [2022-11-02 21:05:39,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:05:39,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:05:39,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:05:39,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:05:39,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39" (1/1) ... [2022-11-02 21:05:39,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39" (1/1) ... [2022-11-02 21:05:39,936 INFO L138 Inliner]: procedures = 196, calls = 979, calls flagged for inlining = 91, calls inlined = 82, statements flattened = 2523 [2022-11-02 21:05:39,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:05:39,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:05:39,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:05:39,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:05:39,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39" (1/1) ... [2022-11-02 21:05:39,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39" (1/1) ... [2022-11-02 21:05:39,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39" (1/1) ... [2022-11-02 21:05:39,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39" (1/1) ... [2022-11-02 21:05:40,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39" (1/1) ... [2022-11-02 21:05:40,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39" (1/1) ... [2022-11-02 21:05:40,137 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39" (1/1) ... [2022-11-02 21:05:40,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39" (1/1) ... [2022-11-02 21:05:40,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:05:40,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:05:40,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:05:40,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:05:40,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39" (1/1) ... [2022-11-02 21:05:40,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:05:40,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:05:40,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:05:40,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:05:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 21:05:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_input_exit [2022-11-02 21:05:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_input_exit [2022-11-02 21:05:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-02 21:05:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-02 21:05:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 21:05:40,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 21:05:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_input_report [2022-11-02 21:05:40,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_input_report [2022-11-02 21:05:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-02 21:05:40,266 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-02 21:05:40,267 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-02 21:05:40,267 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-02 21:05:40,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 21:05:40,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 21:05:40,267 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-02 21:05:40,268 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-02 21:05:40,268 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_sync_rfk_state [2022-11-02 21:05:40,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_sync_rfk_state [2022-11-02 21:05:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:05:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 21:05:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure read_ec_data [2022-11-02 21:05:40,269 INFO L138 BoogieDeclarations]: Found implementation of procedure read_ec_data [2022-11-02 21:05:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:05:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-02 21:05:40,270 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-02 21:05:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_sync_touchpad_state [2022-11-02 21:05:40,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_sync_touchpad_state [2022-11-02 21:05:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 21:05:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-02 21:05:40,271 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-02 21:05:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_init [2022-11-02 21:05:40,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_init [2022-11-02 21:05:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_evaluate_integer [2022-11-02 21:05:40,272 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_evaluate_integer [2022-11-02 21:05:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-02 21:05:40,272 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-02 21:05:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_notify [2022-11-02 21:05:40,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_notify [2022-11-02 21:05:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-02 21:05:40,274 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-02 21:05:40,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 21:05:40,274 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_destroy [2022-11-02 21:05:40,274 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_destroy [2022-11-02 21:05:40,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:05:40,275 INFO L130 BoogieDeclarations]: Found specification of procedure backlight_update_status [2022-11-02 21:05:40,275 INFO L138 BoogieDeclarations]: Found implementation of procedure backlight_update_status [2022-11-02 21:05:40,275 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-02 21:05:40,276 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-02 21:05:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_add [2022-11-02 21:05:40,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_add [2022-11-02 21:05:40,276 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_update_status [2022-11-02 21:05:40,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_update_status [2022-11-02 21:05:40,277 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-02 21:05:40,277 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-02 21:05:40,278 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_init_sw_state [2022-11-02 21:05:40,278 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_init_sw_state [2022-11-02 21:05:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 21:05:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 21:05:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-02 21:05:40,282 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-02 21:05:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:05:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-02 21:05:40,282 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-02 21:05:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_get_brightness [2022-11-02 21:05:40,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_get_brightness [2022-11-02 21:05:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_unregister_rfkill [2022-11-02 21:05:40,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_unregister_rfkill [2022-11-02 21:05:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:05:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-02 21:05:40,284 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-02 21:05:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:05:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure method_vpcr [2022-11-02 21:05:40,284 INFO L138 BoogieDeclarations]: Found implementation of procedure method_vpcr [2022-11-02 21:05:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure method_vpcw [2022-11-02 21:05:40,285 INFO L138 BoogieDeclarations]: Found implementation of procedure method_vpcw [2022-11-02 21:05:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure sparse_keymap_free [2022-11-02 21:05:40,286 INFO L138 BoogieDeclarations]: Found implementation of procedure sparse_keymap_free [2022-11-02 21:05:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:05:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-02 21:05:40,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-02 21:05:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_resume [2022-11-02 21:05:40,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_resume [2022-11-02 21:05:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure write_ec_cmd [2022-11-02 21:05:40,287 INFO L138 BoogieDeclarations]: Found implementation of procedure write_ec_cmd [2022-11-02 21:05:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_platform_exit [2022-11-02 21:05:40,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_platform_exit [2022-11-02 21:05:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_debugfs_exit [2022-11-02 21:05:40,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_debugfs_exit [2022-11-02 21:05:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:05:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:05:40,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:05:40,921 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:05:40,925 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:05:53,409 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:05:53,437 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:05:53,450 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 21:05:53,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:05:53 BoogieIcfgContainer [2022-11-02 21:05:53,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:05:53,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:05:53,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:05:53,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:05:53,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:05:37" (1/3) ... [2022-11-02 21:05:53,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fbf4dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:05:53, skipping insertion in model container [2022-11-02 21:05:53,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:39" (2/3) ... [2022-11-02 21:05:53,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fbf4dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:05:53, skipping insertion in model container [2022-11-02 21:05:53,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:05:53" (3/3) ... [2022-11-02 21:05:53,482 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i [2022-11-02 21:05:53,502 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:05:53,506 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:05:53,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:05:53,581 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;@26768647, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:05:53,581 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:05:53,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 700 states, 543 states have (on average 1.4548802946593002) internal successors, (790), 562 states have internal predecessors, (790), 116 states have call successors, (116), 39 states have call predecessors, (116), 39 states have return successors, (116), 112 states have call predecessors, (116), 116 states have call successors, (116) [2022-11-02 21:05:53,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 21:05:53,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:53,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:53,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:53,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:53,614 INFO L85 PathProgramCache]: Analyzing trace with hash -750438681, now seen corresponding path program 1 times [2022-11-02 21:05:53,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:53,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534271870] [2022-11-02 21:05:53,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:53,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:54,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:54,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:54,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534271870] [2022-11-02 21:05:54,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534271870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:54,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:54,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:05:54,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099857177] [2022-11-02 21:05:54,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:54,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:54,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:54,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:54,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:54,481 INFO L87 Difference]: Start difference. First operand has 700 states, 543 states have (on average 1.4548802946593002) internal successors, (790), 562 states have internal predecessors, (790), 116 states have call successors, (116), 39 states have call predecessors, (116), 39 states have return successors, (116), 112 states have call predecessors, (116), 116 states have call successors, (116) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:56,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:05:56,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:56,780 INFO L93 Difference]: Finished difference Result 2070 states and 3094 transitions. [2022-11-02 21:05:56,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:56,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 21:05:56,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:56,811 INFO L225 Difference]: With dead ends: 2070 [2022-11-02 21:05:56,811 INFO L226 Difference]: Without dead ends: 1369 [2022-11-02 21:05:56,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:56,825 INFO L413 NwaCegarLoop]: 1121 mSDtfsCounter, 971 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:56,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 2119 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-02 21:05:56,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2022-11-02 21:05:56,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1365. [2022-11-02 21:05:57,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1063 states have (on average 1.451552210724365) internal successors, (1543), 1091 states have internal predecessors, (1543), 225 states have call successors, (225), 77 states have call predecessors, (225), 76 states have return successors, (218), 210 states have call predecessors, (218), 218 states have call successors, (218) [2022-11-02 21:05:57,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1986 transitions. [2022-11-02 21:05:57,019 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1986 transitions. Word has length 22 [2022-11-02 21:05:57,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:57,020 INFO L495 AbstractCegarLoop]: Abstraction has 1365 states and 1986 transitions. [2022-11-02 21:05:57,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:57,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1986 transitions. [2022-11-02 21:05:57,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-02 21:05:57,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:57,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:57,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:05:57,026 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:57,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:57,027 INFO L85 PathProgramCache]: Analyzing trace with hash 577706747, now seen corresponding path program 1 times [2022-11-02 21:05:57,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:57,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531176770] [2022-11-02 21:05:57,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:57,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:57,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:57,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:57,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531176770] [2022-11-02 21:05:57,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531176770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:57,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:57,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:05:57,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908765134] [2022-11-02 21:05:57,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:57,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:57,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:57,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:57,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:57,353 INFO L87 Difference]: Start difference. First operand 1365 states and 1986 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:57,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:57,535 INFO L93 Difference]: Finished difference Result 1391 states and 2018 transitions. [2022-11-02 21:05:57,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:57,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-02 21:05:57,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:57,549 INFO L225 Difference]: With dead ends: 1391 [2022-11-02 21:05:57,550 INFO L226 Difference]: Without dead ends: 1378 [2022-11-02 21:05:57,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:57,554 INFO L413 NwaCegarLoop]: 1023 mSDtfsCounter, 1003 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:57,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 1039 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:05:57,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2022-11-02 21:05:57,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1365. [2022-11-02 21:05:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1063 states have (on average 1.4506114769520226) internal successors, (1542), 1091 states have internal predecessors, (1542), 225 states have call successors, (225), 77 states have call predecessors, (225), 76 states have return successors, (218), 210 states have call predecessors, (218), 218 states have call successors, (218) [2022-11-02 21:05:57,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1985 transitions. [2022-11-02 21:05:57,655 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1985 transitions. Word has length 25 [2022-11-02 21:05:57,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:57,656 INFO L495 AbstractCegarLoop]: Abstraction has 1365 states and 1985 transitions. [2022-11-02 21:05:57,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:57,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1985 transitions. [2022-11-02 21:05:57,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-02 21:05:57,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:57,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:57,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:05:57,665 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:57,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:57,666 INFO L85 PathProgramCache]: Analyzing trace with hash 634965049, now seen corresponding path program 1 times [2022-11-02 21:05:57,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:57,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929072180] [2022-11-02 21:05:57,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:57,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:57,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:57,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:57,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929072180] [2022-11-02 21:05:57,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929072180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:57,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:57,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:05:57,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758015278] [2022-11-02 21:05:57,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:57,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:57,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:57,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:57,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:57,961 INFO L87 Difference]: Start difference. First operand 1365 states and 1985 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:00,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:00,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:00,103 INFO L93 Difference]: Finished difference Result 1367 states and 1986 transitions. [2022-11-02 21:06:00,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:06:00,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-02 21:06:00,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:00,112 INFO L225 Difference]: With dead ends: 1367 [2022-11-02 21:06:00,112 INFO L226 Difference]: Without dead ends: 1364 [2022-11-02 21:06:00,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:00,115 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 984 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:00,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 1005 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-02 21:06:00,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2022-11-02 21:06:00,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1364. [2022-11-02 21:06:00,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 1063 states have (on average 1.4496707431796803) internal successors, (1541), 1090 states have internal predecessors, (1541), 224 states have call successors, (224), 77 states have call predecessors, (224), 76 states have return successors, (218), 210 states have call predecessors, (218), 218 states have call successors, (218) [2022-11-02 21:06:00,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1983 transitions. [2022-11-02 21:06:00,208 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1983 transitions. Word has length 25 [2022-11-02 21:06:00,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:00,209 INFO L495 AbstractCegarLoop]: Abstraction has 1364 states and 1983 transitions. [2022-11-02 21:06:00,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:00,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1983 transitions. [2022-11-02 21:06:00,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-02 21:06:00,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:00,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:00,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:06:00,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:00,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:00,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1791173724, now seen corresponding path program 1 times [2022-11-02 21:06:00,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:00,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327926810] [2022-11-02 21:06:00,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:00,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:00,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:00,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327926810] [2022-11-02 21:06:00,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327926810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:00,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:00,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:06:00,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317898471] [2022-11-02 21:06:00,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:00,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:06:00,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:00,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:06:00,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:00,481 INFO L87 Difference]: Start difference. First operand 1364 states and 1983 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:02,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:02,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:02,624 INFO L93 Difference]: Finished difference Result 1366 states and 1984 transitions. [2022-11-02 21:06:02,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:06:02,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-02 21:06:02,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:02,633 INFO L225 Difference]: With dead ends: 1366 [2022-11-02 21:06:02,633 INFO L226 Difference]: Without dead ends: 1363 [2022-11-02 21:06:02,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:02,637 INFO L413 NwaCegarLoop]: 1003 mSDtfsCounter, 981 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:02,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 1003 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-02 21:06:02,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2022-11-02 21:06:02,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1363. [2022-11-02 21:06:02,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1063 states have (on average 1.4487300094073376) internal successors, (1540), 1089 states have internal predecessors, (1540), 223 states have call successors, (223), 77 states have call predecessors, (223), 76 states have return successors, (218), 210 states have call predecessors, (218), 218 states have call successors, (218) [2022-11-02 21:06:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1981 transitions. [2022-11-02 21:06:02,763 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1981 transitions. Word has length 26 [2022-11-02 21:06:02,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:02,764 INFO L495 AbstractCegarLoop]: Abstraction has 1363 states and 1981 transitions. [2022-11-02 21:06:02,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:02,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1981 transitions. [2022-11-02 21:06:02,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:06:02,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:02,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:02,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:06:02,769 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:02,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash 307940508, now seen corresponding path program 1 times [2022-11-02 21:06:02,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:02,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617343671] [2022-11-02 21:06:02,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:02,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:03,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:03,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:03,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617343671] [2022-11-02 21:06:03,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617343671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:03,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:03,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:06:03,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364803708] [2022-11-02 21:06:03,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:03,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:06:03,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:03,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:06:03,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:03,068 INFO L87 Difference]: Start difference. First operand 1363 states and 1981 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:05,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:05,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:05,202 INFO L93 Difference]: Finished difference Result 1365 states and 1982 transitions. [2022-11-02 21:06:05,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:06:05,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-02 21:06:05,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:05,211 INFO L225 Difference]: With dead ends: 1365 [2022-11-02 21:06:05,211 INFO L226 Difference]: Without dead ends: 1362 [2022-11-02 21:06:05,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:05,213 INFO L413 NwaCegarLoop]: 1001 mSDtfsCounter, 978 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:05,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 1001 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-02 21:06:05,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2022-11-02 21:06:05,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1362. [2022-11-02 21:06:05,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1063 states have (on average 1.4477892756349953) internal successors, (1539), 1088 states have internal predecessors, (1539), 222 states have call successors, (222), 77 states have call predecessors, (222), 76 states have return successors, (218), 210 states have call predecessors, (218), 218 states have call successors, (218) [2022-11-02 21:06:05,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1979 transitions. [2022-11-02 21:06:05,304 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1979 transitions. Word has length 27 [2022-11-02 21:06:05,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:05,304 INFO L495 AbstractCegarLoop]: Abstraction has 1362 states and 1979 transitions. [2022-11-02 21:06:05,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:05,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1979 transitions. [2022-11-02 21:06:05,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-02 21:06:05,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:05,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:05,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:06:05,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:05,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:05,308 INFO L85 PathProgramCache]: Analyzing trace with hash 955977127, now seen corresponding path program 1 times [2022-11-02 21:06:05,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:05,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613325703] [2022-11-02 21:06:05,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:05,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:05,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:05,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:05,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613325703] [2022-11-02 21:06:05,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613325703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:05,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:05,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:06:05,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993339743] [2022-11-02 21:06:05,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:05,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:06:05,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:05,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:06:05,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:05,544 INFO L87 Difference]: Start difference. First operand 1362 states and 1979 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:07,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:07,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:07,715 INFO L93 Difference]: Finished difference Result 1364 states and 1980 transitions. [2022-11-02 21:06:07,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:06:07,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-02 21:06:07,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:07,725 INFO L225 Difference]: With dead ends: 1364 [2022-11-02 21:06:07,726 INFO L226 Difference]: Without dead ends: 1361 [2022-11-02 21:06:07,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:07,728 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 975 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:07,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 999 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-02 21:06:07,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2022-11-02 21:06:07,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1361. [2022-11-02 21:06:07,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 1063 states have (on average 1.4468485418626529) internal successors, (1538), 1087 states have internal predecessors, (1538), 221 states have call successors, (221), 77 states have call predecessors, (221), 76 states have return successors, (218), 210 states have call predecessors, (218), 218 states have call successors, (218) [2022-11-02 21:06:07,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1977 transitions. [2022-11-02 21:06:07,814 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1977 transitions. Word has length 28 [2022-11-02 21:06:07,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:07,815 INFO L495 AbstractCegarLoop]: Abstraction has 1361 states and 1977 transitions. [2022-11-02 21:06:07,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:07,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1977 transitions. [2022-11-02 21:06:07,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-02 21:06:07,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:07,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:07,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:06:07,821 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:07,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:07,822 INFO L85 PathProgramCache]: Analyzing trace with hash -429719297, now seen corresponding path program 1 times [2022-11-02 21:06:07,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:07,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571173543] [2022-11-02 21:06:07,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:07,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:08,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:08,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571173543] [2022-11-02 21:06:08,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571173543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:08,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:08,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:06:08,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48401520] [2022-11-02 21:06:08,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:08,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:06:08,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:08,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:06:08,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:08,062 INFO L87 Difference]: Start difference. First operand 1361 states and 1977 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:10,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:10,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:10,278 INFO L93 Difference]: Finished difference Result 3323 states and 4738 transitions. [2022-11-02 21:06:10,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:06:10,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-02 21:06:10,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:10,290 INFO L225 Difference]: With dead ends: 3323 [2022-11-02 21:06:10,290 INFO L226 Difference]: Without dead ends: 1957 [2022-11-02 21:06:10,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:10,297 INFO L413 NwaCegarLoop]: 1062 mSDtfsCounter, 941 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:10,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 1473 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-02 21:06:10,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states. [2022-11-02 21:06:10,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1951. [2022-11-02 21:06:10,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1486 states have (on average 1.3909825033647376) internal successors, (2067), 1518 states have internal predecessors, (2067), 330 states have call successors, (330), 135 states have call predecessors, (330), 134 states have return successors, (334), 321 states have call predecessors, (334), 328 states have call successors, (334) [2022-11-02 21:06:10,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2731 transitions. [2022-11-02 21:06:10,504 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2731 transitions. Word has length 29 [2022-11-02 21:06:10,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:10,505 INFO L495 AbstractCegarLoop]: Abstraction has 1951 states and 2731 transitions. [2022-11-02 21:06:10,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:06:10,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2731 transitions. [2022-11-02 21:06:10,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-02 21:06:10,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:10,520 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:10,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:06:10,520 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:10,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:10,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1443051079, now seen corresponding path program 1 times [2022-11-02 21:06:10,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:10,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093831537] [2022-11-02 21:06:10,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:10,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:10,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-02 21:06:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:10,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 21:06:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:10,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-02 21:06:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 21:06:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-02 21:06:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-02 21:06:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:06:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-02 21:06:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 21:06:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-02 21:06:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-02 21:06:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-02 21:06:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-02 21:06:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-02 21:06:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,440 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-11-02 21:06:11,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:11,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093831537] [2022-11-02 21:06:11,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093831537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:11,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:11,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:06:11,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068544552] [2022-11-02 21:06:11,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:11,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:06:11,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:11,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:06:11,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:06:11,443 INFO L87 Difference]: Start difference. First operand 1951 states and 2731 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-02 21:06:13,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:15,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:15,137 INFO L93 Difference]: Finished difference Result 4706 states and 6695 transitions. [2022-11-02 21:06:15,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:06:15,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 207 [2022-11-02 21:06:15,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:15,153 INFO L225 Difference]: With dead ends: 4706 [2022-11-02 21:06:15,153 INFO L226 Difference]: Without dead ends: 2758 [2022-11-02 21:06:15,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:06:15,161 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 720 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 327 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:15,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 2521 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-02 21:06:15,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2758 states. [2022-11-02 21:06:15,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2758 to 2651. [2022-11-02 21:06:15,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2651 states, 2068 states have (on average 1.4361702127659575) internal successors, (2970), 2102 states have internal predecessors, (2970), 410 states have call successors, (410), 173 states have call predecessors, (410), 172 states have return successors, (414), 401 states have call predecessors, (414), 408 states have call successors, (414) [2022-11-02 21:06:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2651 states to 2651 states and 3794 transitions. [2022-11-02 21:06:15,358 INFO L78 Accepts]: Start accepts. Automaton has 2651 states and 3794 transitions. Word has length 207 [2022-11-02 21:06:15,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:15,358 INFO L495 AbstractCegarLoop]: Abstraction has 2651 states and 3794 transitions. [2022-11-02 21:06:15,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-02 21:06:15,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2651 states and 3794 transitions. [2022-11-02 21:06:15,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-02 21:06:15,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:15,370 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:15,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:06:15,371 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:15,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:15,371 INFO L85 PathProgramCache]: Analyzing trace with hash 359231920, now seen corresponding path program 1 times [2022-11-02 21:06:15,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:15,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17169104] [2022-11-02 21:06:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:15,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-02 21:06:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:06:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:06:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-02 21:06:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:06:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-02 21:06:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-02 21:06:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 21:06:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-02 21:06:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-02 21:06:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-02 21:06:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-02 21:06:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-02 21:06:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:16,503 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-11-02 21:06:16,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:16,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17169104] [2022-11-02 21:06:16,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17169104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:16,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:16,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:06:16,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058760845] [2022-11-02 21:06:16,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:16,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:06:16,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:16,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:06:16,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:06:16,507 INFO L87 Difference]: Start difference. First operand 2651 states and 3794 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-02 21:06:18,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:20,568 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 21:06:22,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:22,528 INFO L93 Difference]: Finished difference Result 5430 states and 7806 transitions. [2022-11-02 21:06:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:06:22,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 225 [2022-11-02 21:06:22,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:22,545 INFO L225 Difference]: With dead ends: 5430 [2022-11-02 21:06:22,545 INFO L226 Difference]: Without dead ends: 2782 [2022-11-02 21:06:22,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:06:22,555 INFO L413 NwaCegarLoop]: 969 mSDtfsCounter, 94 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 122 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 3936 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:22,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 3936 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 721 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-11-02 21:06:22,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2022-11-02 21:06:22,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2667. [2022-11-02 21:06:22,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2080 states have (on average 1.4336538461538462) internal successors, (2982), 2116 states have internal predecessors, (2982), 412 states have call successors, (412), 173 states have call predecessors, (412), 174 states have return successors, (418), 403 states have call predecessors, (418), 410 states have call successors, (418) [2022-11-02 21:06:22,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3812 transitions. [2022-11-02 21:06:22,757 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3812 transitions. Word has length 225 [2022-11-02 21:06:22,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:22,758 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 3812 transitions. [2022-11-02 21:06:22,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-02 21:06:22,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3812 transitions. [2022-11-02 21:06:22,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-02 21:06:22,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:22,769 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:06:22,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:06:22,770 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:22,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:22,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1388223033, now seen corresponding path program 1 times [2022-11-02 21:06:22,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:22,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59116727] [2022-11-02 21:06:22,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:22,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-02 21:06:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:06:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:06:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 21:06:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 21:06:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 21:06:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-02 21:06:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-02 21:06:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 21:06:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-02 21:06:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-02 21:06:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-02 21:06:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-02 21:06:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-02 21:06:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,745 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-11-02 21:06:23,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:23,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59116727] [2022-11-02 21:06:23,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59116727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:23,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:23,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:06:23,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735458008] [2022-11-02 21:06:23,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:23,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:06:23,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:23,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:06:23,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:06:23,748 INFO L87 Difference]: Start difference. First operand 2667 states and 3812 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-02 21:06:25,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:27,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:27,637 INFO L93 Difference]: Finished difference Result 5466 states and 7850 transitions. [2022-11-02 21:06:27,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:06:27,638 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 235 [2022-11-02 21:06:27,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:27,654 INFO L225 Difference]: With dead ends: 5466 [2022-11-02 21:06:27,654 INFO L226 Difference]: Without dead ends: 2802 [2022-11-02 21:06:27,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:06:27,738 INFO L413 NwaCegarLoop]: 970 mSDtfsCounter, 94 mSDsluCounter, 2962 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 124 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 3932 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:27,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 3932 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 724 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-02 21:06:27,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2802 states. [2022-11-02 21:06:27,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2802 to 2677. [2022-11-02 21:06:28,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2088 states have (on average 1.431992337164751) internal successors, (2990), 2126 states have internal predecessors, (2990), 414 states have call successors, (414), 173 states have call predecessors, (414), 174 states have return successors, (420), 405 states have call predecessors, (420), 412 states have call successors, (420) [2022-11-02 21:06:28,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3824 transitions. [2022-11-02 21:06:28,036 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3824 transitions. Word has length 235 [2022-11-02 21:06:28,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:28,037 INFO L495 AbstractCegarLoop]: Abstraction has 2677 states and 3824 transitions. [2022-11-02 21:06:28,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-02 21:06:28,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3824 transitions. [2022-11-02 21:06:28,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-02 21:06:28,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:28,050 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:06:28,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:06:28,051 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:28,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:28,053 INFO L85 PathProgramCache]: Analyzing trace with hash -545360257, now seen corresponding path program 1 times [2022-11-02 21:06:28,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:28,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262352831] [2022-11-02 21:06:28,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:28,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-02 21:06:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:06:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:06:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 21:06:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 21:06:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-02 21:06:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 21:06:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 21:06:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-02 21:06:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-02 21:06:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 21:06:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-02 21:06:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-02 21:06:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-02 21:06:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:28,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-02 21:06:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-02 21:06:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-02 21:06:29,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:29,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262352831] [2022-11-02 21:06:29,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262352831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:29,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:29,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:06:29,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765702565] [2022-11-02 21:06:29,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:29,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:06:29,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:29,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:06:29,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:06:29,014 INFO L87 Difference]: Start difference. First operand 2677 states and 3824 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-02 21:06:31,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:32,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:32,430 INFO L93 Difference]: Finished difference Result 5490 states and 7882 transitions. [2022-11-02 21:06:32,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:06:32,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 258 [2022-11-02 21:06:32,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:32,447 INFO L225 Difference]: With dead ends: 5490 [2022-11-02 21:06:32,448 INFO L226 Difference]: Without dead ends: 2816 [2022-11-02 21:06:32,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:06:32,459 INFO L413 NwaCegarLoop]: 973 mSDtfsCounter, 179 mSDsluCounter, 2371 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 235 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 3344 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:32,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 3344 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-02 21:06:32,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2022-11-02 21:06:32,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 2687. [2022-11-02 21:06:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2687 states, 2096 states have (on average 1.4303435114503817) internal successors, (2998), 2136 states have internal predecessors, (2998), 416 states have call successors, (416), 173 states have call predecessors, (416), 174 states have return successors, (422), 407 states have call predecessors, (422), 414 states have call successors, (422) [2022-11-02 21:06:32,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2687 states to 2687 states and 3836 transitions. [2022-11-02 21:06:32,643 INFO L78 Accepts]: Start accepts. Automaton has 2687 states and 3836 transitions. Word has length 258 [2022-11-02 21:06:32,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:32,644 INFO L495 AbstractCegarLoop]: Abstraction has 2687 states and 3836 transitions. [2022-11-02 21:06:32,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-02 21:06:32,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2687 states and 3836 transitions. [2022-11-02 21:06:32,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-02 21:06:32,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:32,658 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:06:32,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:06:32,658 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:32,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:32,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1768664024, now seen corresponding path program 1 times [2022-11-02 21:06:32,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:32,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798594890] [2022-11-02 21:06:32,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:32,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-02 21:06:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:06:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:06:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 21:06:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 21:06:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-02 21:06:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 21:06:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 21:06:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-02 21:06:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-02 21:06:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 21:06:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-02 21:06:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-02 21:06:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-11-02 21:06:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-02 21:06:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-11-02 21:06:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,595 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-02 21:06:33,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:33,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798594890] [2022-11-02 21:06:33,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798594890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:33,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:33,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:06:33,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873634460] [2022-11-02 21:06:33,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:33,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:06:33,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:33,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:06:33,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:06:33,598 INFO L87 Difference]: Start difference. First operand 2687 states and 3836 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-02 21:06:35,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:37,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:37,303 INFO L93 Difference]: Finished difference Result 5606 states and 8066 transitions. [2022-11-02 21:06:37,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:06:37,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 262 [2022-11-02 21:06:37,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:37,320 INFO L225 Difference]: With dead ends: 5606 [2022-11-02 21:06:37,320 INFO L226 Difference]: Without dead ends: 2922 [2022-11-02 21:06:37,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:06:37,331 INFO L413 NwaCegarLoop]: 962 mSDtfsCounter, 114 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 131 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:37,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 3056 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 589 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-02 21:06:37,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-11-02 21:06:37,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2695. [2022-11-02 21:06:37,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2695 states, 2104 states have (on average 1.4287072243346008) internal successors, (3006), 2144 states have internal predecessors, (3006), 416 states have call successors, (416), 173 states have call predecessors, (416), 174 states have return successors, (422), 407 states have call predecessors, (422), 414 states have call successors, (422) [2022-11-02 21:06:37,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2695 states to 2695 states and 3844 transitions. [2022-11-02 21:06:37,570 INFO L78 Accepts]: Start accepts. Automaton has 2695 states and 3844 transitions. Word has length 262 [2022-11-02 21:06:37,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:37,571 INFO L495 AbstractCegarLoop]: Abstraction has 2695 states and 3844 transitions. [2022-11-02 21:06:37,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-02 21:06:37,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2695 states and 3844 transitions. [2022-11-02 21:06:37,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-11-02 21:06:37,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:37,583 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:06:37,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:06:37,584 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:37,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:37,585 INFO L85 PathProgramCache]: Analyzing trace with hash -444655922, now seen corresponding path program 1 times [2022-11-02 21:06:37,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:37,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59556931] [2022-11-02 21:06:37,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:37,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-02 21:06:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:06:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:06:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 21:06:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 21:06:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-02 21:06:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 21:06:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 21:06:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-02 21:06:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 21:06:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-02 21:06:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 21:06:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-02 21:06:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-02 21:06:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-02 21:06:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-02 21:06:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-02 21:06:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-02 21:06:38,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:38,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59556931] [2022-11-02 21:06:38,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59556931] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:38,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215107902] [2022-11-02 21:06:38,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:38,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:38,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:38,694 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:38,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:06:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:40,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 4498 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:06:40,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-11-02 21:06:40,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:40,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215107902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:40,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:06:40,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-02 21:06:40,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488306423] [2022-11-02 21:06:40,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:40,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:06:40,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:40,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:06:40,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:06:40,564 INFO L87 Difference]: Start difference. First operand 2695 states and 3844 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-02 21:06:42,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:42,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:42,787 INFO L93 Difference]: Finished difference Result 3502 states and 4842 transitions. [2022-11-02 21:06:42,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:06:42,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 271 [2022-11-02 21:06:42,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:42,801 INFO L225 Difference]: With dead ends: 3502 [2022-11-02 21:06:42,801 INFO L226 Difference]: Without dead ends: 2683 [2022-11-02 21:06:42,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:06:42,806 INFO L413 NwaCegarLoop]: 1358 mSDtfsCounter, 403 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:42,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 2301 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-02 21:06:42,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-11-02 21:06:42,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2667. [2022-11-02 21:06:42,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2088 states have (on average 1.4295977011494252) internal successors, (2985), 2122 states have internal predecessors, (2985), 408 states have call successors, (408), 172 states have call predecessors, (408), 170 states have return successors, (406), 398 states have call predecessors, (406), 406 states have call successors, (406) [2022-11-02 21:06:42,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3799 transitions. [2022-11-02 21:06:42,989 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3799 transitions. Word has length 271 [2022-11-02 21:06:42,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:42,989 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 3799 transitions. [2022-11-02 21:06:42,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-02 21:06:42,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3799 transitions. [2022-11-02 21:06:43,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2022-11-02 21:06:43,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:43,010 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:43,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:43,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:43,239 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:43,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:43,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1405236378, now seen corresponding path program 1 times [2022-11-02 21:06:43,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:43,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300273980] [2022-11-02 21:06:43,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:43,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-02 21:06:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:06:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:06:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 21:06:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 21:06:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-02 21:06:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 21:06:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 21:06:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-02 21:06:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 21:06:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-02 21:06:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 21:06:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-02 21:06:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-02 21:06:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-02 21:06:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-02 21:06:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-02 21:06:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-11-02 21:06:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-11-02 21:06:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-11-02 21:06:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-11-02 21:06:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-11-02 21:06:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-11-02 21:06:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-11-02 21:06:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-11-02 21:06:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-11-02 21:06:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-11-02 21:06:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-11-02 21:06:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-11-02 21:06:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 21:06:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-11-02 21:06:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2022-11-02 21:06:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:45,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2022-11-02 21:06:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:45,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:45,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2022-11-02 21:06:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:45,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2022-11-02 21:06:45,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:45,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300273980] [2022-11-02 21:06:45,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300273980] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:45,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293855411] [2022-11-02 21:06:45,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:45,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:45,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:45,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:45,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:06:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:47,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 7010 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:06:47,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:47,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 361 proven. 1 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2022-11-02 21:06:47,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:06:48,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2022-11-02 21:06:48,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293855411] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:06:48,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:06:48,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 8 [2022-11-02 21:06:48,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043003361] [2022-11-02 21:06:48,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:06:48,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:06:48,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:48,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:06:48,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:06:48,009 INFO L87 Difference]: Start difference. First operand 2667 states and 3799 transitions. Second operand has 8 states, 8 states have (on average 30.25) internal successors, (242), 6 states have internal predecessors, (242), 5 states have call successors, (91), 4 states have call predecessors, (91), 2 states have return successors, (60), 5 states have call predecessors, (60), 5 states have call successors, (60) [2022-11-02 21:06:50,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:52,066 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 21:06:54,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:54,142 INFO L93 Difference]: Finished difference Result 5693 states and 8187 transitions. [2022-11-02 21:06:54,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:06:54,143 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 30.25) internal successors, (242), 6 states have internal predecessors, (242), 5 states have call successors, (91), 4 states have call predecessors, (91), 2 states have return successors, (60), 5 states have call predecessors, (60), 5 states have call successors, (60) Word has length 497 [2022-11-02 21:06:54,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:54,156 INFO L225 Difference]: With dead ends: 5693 [2022-11-02 21:06:54,156 INFO L226 Difference]: Without dead ends: 3029 [2022-11-02 21:06:54,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 1107 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:06:54,164 INFO L413 NwaCegarLoop]: 969 mSDtfsCounter, 190 mSDsluCounter, 3733 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 158 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 4702 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:54,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 4702 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 918 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-11-02 21:06:54,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3029 states. [2022-11-02 21:06:54,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3029 to 2923. [2022-11-02 21:06:54,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2272 states have (on average 1.4159330985915493) internal successors, (3217), 2306 states have internal predecessors, (3217), 480 states have call successors, (480), 172 states have call predecessors, (480), 170 states have return successors, (478), 470 states have call predecessors, (478), 478 states have call successors, (478) [2022-11-02 21:06:54,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 4175 transitions. [2022-11-02 21:06:54,369 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 4175 transitions. Word has length 497 [2022-11-02 21:06:54,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:54,370 INFO L495 AbstractCegarLoop]: Abstraction has 2923 states and 4175 transitions. [2022-11-02 21:06:54,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 30.25) internal successors, (242), 6 states have internal predecessors, (242), 5 states have call successors, (91), 4 states have call predecessors, (91), 2 states have return successors, (60), 5 states have call predecessors, (60), 5 states have call successors, (60) [2022-11-02 21:06:54,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 4175 transitions. [2022-11-02 21:06:54,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2022-11-02 21:06:54,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:54,395 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:54,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:54,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:54,611 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:54,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:54,611 INFO L85 PathProgramCache]: Analyzing trace with hash 208799770, now seen corresponding path program 2 times [2022-11-02 21:06:54,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:54,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847449102] [2022-11-02 21:06:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:54,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-02 21:06:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:06:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 21:06:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 21:06:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 21:06:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-02 21:06:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 21:06:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 21:06:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-02 21:06:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-02 21:06:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-02 21:06:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-02 21:06:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-02 21:06:56,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 21:06:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-02 21:06:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-02 21:06:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-02 21:06:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-02 21:06:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-11-02 21:06:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-11-02 21:06:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-02 21:06:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-11-02 21:06:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-11-02 21:06:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-11-02 21:06:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-11-02 21:06:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-11-02 21:06:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-11-02 21:06:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2022-11-02 21:06:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-11-02 21:06:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-11-02 21:06:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-11-02 21:06:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-11-02 21:06:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-11-02 21:06:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 21:06:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2022-11-02 21:06:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-11-02 21:06:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2022-11-02 21:06:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2022-11-02 21:06:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 121 proven. 14 refuted. 0 times theorem prover too weak. 1183 trivial. 0 not checked. [2022-11-02 21:06:56,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:56,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847449102] [2022-11-02 21:06:56,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847449102] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:56,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595312327] [2022-11-02 21:06:56,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:06:56,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:56,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:56,816 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:56,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14efe26d-ad6a-4347-80e4-ee3869c06fac/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process