./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a --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 29069a6562e86cf14ec2af6e66fde431300c67391fef8a4bef75c88d837db303 --- 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-b5237d8 [2022-11-21 16:49:33,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:49:33,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:49:33,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:49:33,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:49:33,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:49:33,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:49:33,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:49:33,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:49:33,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:49:33,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:49:33,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:49:33,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:49:33,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:49:33,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:49:33,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:49:33,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:49:33,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:49:33,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:49:33,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:49:33,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:49:33,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:49:33,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:49:33,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:49:33,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:49:33,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:49:33,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:49:33,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:49:33,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:49:33,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:49:33,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:49:33,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:49:33,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:49:33,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:49:33,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:49:33,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:49:33,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:49:33,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:49:33,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:49:33,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:49:33,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:49:33,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:49:33,603 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:49:33,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:49:33,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:49:33,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:49:33,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:49:33,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:49:33,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:49:33,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:49:33,611 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:49:33,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:49:33,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:49:33,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:49:33,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:49:33,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:49:33,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:49:33,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:49:33,613 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:49:33,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:49:33,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:49:33,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:49:33,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:49:33,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:49:33,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:49:33,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:49:33,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:49:33,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:49:33,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:49:33,615 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:49:33,615 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:49:33,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:49:33,616 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_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29069a6562e86cf14ec2af6e66fde431300c67391fef8a4bef75c88d837db303 [2022-11-21 16:49:33,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:49:33,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:49:33,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:49:33,962 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:49:33,964 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:49:33,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i [2022-11-21 16:49:36,963 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:49:37,691 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:49:37,691 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i [2022-11-21 16:49:37,749 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/data/db9e6f7d5/8530924e07084affa478db08bba39275/FLAGac97f0362 [2022-11-21 16:49:37,769 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/data/db9e6f7d5/8530924e07084affa478db08bba39275 [2022-11-21 16:49:37,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:49:37,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:49:37,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:49:37,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:49:37,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:49:37,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:49:37" (1/1) ... [2022-11-21 16:49:37,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798e4fd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:37, skipping insertion in model container [2022-11-21 16:49:37,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:49:37" (1/1) ... [2022-11-21 16:49:37,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:49:38,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:49:38,781 WARN L237 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_23e10f31-6e25-4a5c-b847-31e6ce97e403/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i[183631,183644] [2022-11-21 16:49:41,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:49:41,559 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:49:41,670 WARN L237 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_23e10f31-6e25-4a5c-b847-31e6ce97e403/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i[183631,183644] [2022-11-21 16:49:42,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:49:42,398 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:49:42,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42 WrapperNode [2022-11-21 16:49:42,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:49:42,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:49:42,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:49:42,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:49:42,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42" (1/1) ... [2022-11-21 16:49:42,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42" (1/1) ... [2022-11-21 16:49:42,770 INFO L138 Inliner]: procedures = 458, calls = 3206, calls flagged for inlining = 222, calls inlined = 195, statements flattened = 7538 [2022-11-21 16:49:42,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:49:42,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:49:42,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:49:42,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:49:42,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42" (1/1) ... [2022-11-21 16:49:42,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42" (1/1) ... [2022-11-21 16:49:42,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42" (1/1) ... [2022-11-21 16:49:42,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42" (1/1) ... [2022-11-21 16:49:42,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42" (1/1) ... [2022-11-21 16:49:43,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42" (1/1) ... [2022-11-21 16:49:43,193 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42" (1/1) ... [2022-11-21 16:49:43,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42" (1/1) ... [2022-11-21 16:49:43,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:49:43,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:49:43,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:49:43,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:49:43,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42" (1/1) ... [2022-11-21 16:49:43,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:49:43,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:43,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:43,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:49:43,375 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-21 16:49:43,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-21 16:49:43,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-21 16:49:43,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-21 16:49:43,375 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-21 16:49:43,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-21 16:49:43,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 16:49:43,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 16:49:43,377 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-21 16:49:43,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-21 16:49:43,377 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_function_pointers_vf [2022-11-21 16:49:43,378 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_function_pointers_vf [2022-11-21 16:49:43,378 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-21 16:49:43,378 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-21 16:49:43,378 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-21 16:49:43,378 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-21 16:49:43,378 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-21 16:49:43,378 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-21 16:49:43,378 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-21 16:49:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-21 16:49:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_alloc_rx_buffers [2022-11-21 16:49:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_alloc_rx_buffers [2022-11-21 16:49:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-21 16:49:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-21 16:49:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_mac_addr_vf [2022-11-21 16:49:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_mac_addr_vf [2022-11-21 16:49:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 16:49:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 16:49:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2022-11-21 16:49:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2022-11-21 16:49:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_maybe_stop_tx [2022-11-21 16:49:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_maybe_stop_tx [2022-11-21 16:49:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_mac [2022-11-21 16:49:43,381 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_mac [2022-11-21 16:49:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-21 16:49:43,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-21 16:49:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-21 16:49:43,382 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-21 16:49:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-21 16:49:43,383 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-21 16:49:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_irq [2022-11-21 16:49:43,383 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_irq [2022-11-21 16:49:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-21 16:49:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-21 16:49:43,383 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-21 16:49:43,384 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_suspend [2022-11-21 16:49:43,384 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_suspend [2022-11-21 16:49:43,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:49:43,384 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_ioctl [2022-11-21 16:49:43,384 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_ioctl [2022-11-21 16:49:43,384 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-21 16:49:43,384 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-21 16:49:43,384 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-21 16:49:43,385 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-21 16:49:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-21 16:49:43,385 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-21 16:49:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-21 16:49:43,386 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-21 16:49:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 16:49:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_assign_vector [2022-11-21 16:49:43,386 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_assign_vector [2022-11-21 16:49:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-21 16:49:43,386 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-21 16:49:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-21 16:49:43,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-21 16:49:43,387 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_change_mtu [2022-11-21 16:49:43,387 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_change_mtu [2022-11-21 16:49:43,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 16:49:43,387 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_desc_unused [2022-11-21 16:49:43,388 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_desc_unused [2022-11-21 16:49:43,388 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-11-21 16:49:43,388 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-11-21 16:49:43,388 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_error_detected [2022-11-21 16:49:43,388 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_error_detected [2022-11-21 16:49:43,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:49:43,388 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_netpoll [2022-11-21 16:49:43,388 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_netpoll [2022-11-21 16:49:43,389 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-21 16:49:43,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-21 16:49:43,389 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-21 16:49:43,389 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-21 16:49:43,389 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset_interrupt_capability [2022-11-21 16:49:43,390 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset_interrupt_capability [2022-11-21 16:49:43,390 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-21 16:49:43,390 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-21 16:49:43,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 16:49:43,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 16:49:43,390 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_msg_vf [2022-11-21 16:49:43,391 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_msg_vf [2022-11-21 16:49:43,391 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-21 16:49:43,391 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-21 16:49:43,392 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_tx_resources [2022-11-21 16:49:43,392 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_tx_resources [2022-11-21 16:49:43,392 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-21 16:49:43,392 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-21 16:49:43,392 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_3 [2022-11-21 16:49:43,392 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_3 [2022-11-21 16:49:43,392 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-21 16:49:43,392 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-21 16:49:43,393 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-21 16:49:43,393 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-21 16:49:43,394 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-21 16:49:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-21 16:49:43,394 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-21 16:49:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-21 16:49:43,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-21 16:49:43,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:49:43,395 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-11-21 16:49:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-11-21 16:49:43,395 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-21 16:49:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-21 16:49:43,395 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure_msix [2022-11-21 16:49:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure_msix [2022-11-21 16:49:43,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:49:43,395 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-21 16:49:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-21 16:49:43,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:49:43,396 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-21 16:49:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-21 16:49:43,399 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset [2022-11-21 16:49:43,400 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset [2022-11-21 16:49:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2022-11-21 16:49:43,400 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2022-11-21 16:49:43,401 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-21 16:49:43,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-21 16:49:43,403 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_enable [2022-11-21 16:49:43,403 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_enable [2022-11-21 16:49:43,403 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-21 16:49:43,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-21 16:49:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-21 16:49:43,408 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-21 16:49:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reinit_locked [2022-11-21 16:49:43,409 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reinit_locked [2022-11-21 16:49:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-21 16:49:43,409 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-21 16:49:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_update_stats [2022-11-21 16:49:43,409 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_update_stats [2022-11-21 16:49:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_vlan_rx_add_vid [2022-11-21 16:49:43,409 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_vlan_rx_add_vid [2022-11-21 16:49:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-21 16:49:43,410 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-21 16:49:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-21 16:49:43,410 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-21 16:49:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_bit_vf [2022-11-21 16:49:43,410 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_bit_vf [2022-11-21 16:49:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2022-11-21 16:49:43,410 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2022-11-21 16:49:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:49:43,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:49:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-21 16:49:43,411 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-21 16:49:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2022-11-21 16:49:43,411 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2022-11-21 16:49:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-21 16:49:43,411 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-21 16:49:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 16:49:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 16:49:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 16:49:43,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 16:49:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-21 16:49:43,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-21 16:49:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2022-11-21 16:49:43,412 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2022-11-21 16:49:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-21 16:49:43,412 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-21 16:49:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-21 16:49:43,412 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-21 16:49:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-21 16:49:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-21 16:49:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_down [2022-11-21 16:49:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_down [2022-11-21 16:49:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_regs_len [2022-11-21 16:49:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_regs_len [2022-11-21 16:49:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_6 [2022-11-21 16:49:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_6 [2022-11-21 16:49:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 16:49:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 16:49:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_irq [2022-11-21 16:49:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_irq [2022-11-21 16:49:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-21 16:49:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-21 16:49:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-21 16:49:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-21 16:49:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2022-11-21 16:49:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2022-11-21 16:49:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-21 16:49:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-21 16:49:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-21 16:49:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-21 16:49:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 16:49:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 16:49:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-21 16:49:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-21 16:49:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_ring [2022-11-21 16:49:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_ring [2022-11-21 16:49:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_v2p_mailbox [2022-11-21 16:49:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_v2p_mailbox [2022-11-21 16:49:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_3 [2022-11-21 16:49:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_3 [2022-11-21 16:49:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-21 16:49:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-21 16:49:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-21 16:49:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-21 16:49:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-21 16:49:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-21 16:49:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-11-21 16:49:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-11-21 16:49:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:49:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-21 16:49:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-21 16:49:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_remove [2022-11-21 16:49:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_remove [2022-11-21 16:49:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-21 16:49:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-21 16:49:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-21 16:49:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-21 16:49:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_disable [2022-11-21 16:49:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_disable [2022-11-21 16:49:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:49:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-21 16:49:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-21 16:49:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_slot_reset [2022-11-21 16:49:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_slot_reset [2022-11-21 16:49:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure [2022-11-21 16:49:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure [2022-11-21 16:49:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_rx_resources [2022-11-21 16:49:43,419 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_rx_resources [2022-11-21 16:49:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_rx_ring [2022-11-21 16:49:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_rx_ring [2022-11-21 16:49:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2022-11-21 16:49:43,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2022-11-21 16:49:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_obtain_mbx_lock_vf [2022-11-21 16:49:43,422 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_obtain_mbx_lock_vf [2022-11-21 16:49:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-21 16:49:43,422 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-21 16:49:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:49:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_ack_vf [2022-11-21 16:49:43,422 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_ack_vf [2022-11-21 16:49:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-21 16:49:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-21 16:49:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-21 16:49:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-21 16:49:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-21 16:49:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-21 16:49:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_request_irq [2022-11-21 16:49:43,424 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_request_irq [2022-11-21 16:49:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-21 16:49:43,428 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-21 16:49:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-21 16:49:43,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-21 16:49:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_put_txbuf [2022-11-21 16:49:43,428 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_put_txbuf [2022-11-21 16:49:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2022-11-21 16:49:43,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2022-11-21 16:49:43,429 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2022-11-21 16:49:43,429 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2022-11-21 16:49:43,429 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-21 16:49:43,430 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-21 16:49:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-21 16:49:43,430 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-21 16:49:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-21 16:49:43,430 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-21 16:49:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-21 16:49:43,430 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-21 16:49:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_shutdown [2022-11-21 16:49:43,430 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_shutdown [2022-11-21 16:49:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-21 16:49:43,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-21 16:49:43,431 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-21 16:49:43,431 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-21 16:49:43,431 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2022-11-21 16:49:43,431 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2022-11-21 16:49:43,431 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-21 16:49:43,431 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-21 16:49:43,431 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_tx_resources [2022-11-21 16:49:43,431 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_tx_resources [2022-11-21 16:49:43,431 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 16:49:43,432 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 16:49:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_eeprom_len [2022-11-21 16:49:43,432 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_eeprom_len [2022-11-21 16:49:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:49:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_stats [2022-11-21 16:49:43,432 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_stats [2022-11-21 16:49:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2022-11-21 16:49:43,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2022-11-21 16:49:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 16:49:43,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 16:49:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_vlan_rx_kill_vid [2022-11-21 16:49:43,433 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_vlan_rx_kill_vid [2022-11-21 16:49:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-21 16:49:43,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-21 16:49:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-21 16:49:43,433 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-21 16:49:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-21 16:49:43,433 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-21 16:49:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-21 16:49:43,433 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-21 16:49:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_resume [2022-11-21 16:49:43,434 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_resume [2022-11-21 16:49:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-21 16:49:43,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-21 16:49:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_3 [2022-11-21 16:49:43,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_3 [2022-11-21 16:49:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-21 16:49:43,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-21 16:49:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_rx_resources [2022-11-21 16:49:43,434 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_rx_resources [2022-11-21 16:49:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_features [2022-11-21 16:49:43,435 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_features [2022-11-21 16:49:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_multi [2022-11-21 16:49:43,435 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_multi [2022-11-21 16:49:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_tx_timeout [2022-11-21 16:49:43,435 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_tx_timeout [2022-11-21 16:49:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-21 16:49:43,435 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-21 16:49:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-21 16:49:43,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-21 16:49:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2022-11-21 16:49:43,436 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2022-11-21 16:49:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-21 16:49:43,437 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-21 16:49:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_up [2022-11-21 16:49:43,438 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_up [2022-11-21 16:49:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-21 16:49:43,438 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-21 16:49:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:49:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-21 16:49:43,438 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-21 16:49:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-21 16:49:44,774 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:49:44,783 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:49:45,226 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 16:49:52,712 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:49:52,743 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:49:52,744 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 16:49:52,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:52 BoogieIcfgContainer [2022-11-21 16:49:52,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:49:52,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:49:52,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:49:52,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:49:52,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:49:37" (1/3) ... [2022-11-21 16:49:52,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0a31ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:49:52, skipping insertion in model container [2022-11-21 16:49:52,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:42" (2/3) ... [2022-11-21 16:49:52,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0a31ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:49:52, skipping insertion in model container [2022-11-21 16:49:52,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:52" (3/3) ... [2022-11-21 16:49:52,761 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--igbvf--igbvf.ko-entry_point.cil.out.i [2022-11-21 16:49:52,781 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:49:52,781 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:49:52,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:49:52,929 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;@6ea1ec32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:49:52,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:49:52,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 2789 states, 1924 states have (on average 1.3206860706860706) internal successors, (2541), 1984 states have internal predecessors, (2541), 709 states have call successors, (709), 155 states have call predecessors, (709), 154 states have return successors, (694), 680 states have call predecessors, (694), 694 states have call successors, (694) [2022-11-21 16:49:52,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-21 16:49:52,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:49:52,967 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:52,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:49:52,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:52,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1750363497, now seen corresponding path program 1 times [2022-11-21 16:49:52,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:52,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654077068] [2022-11-21 16:49:52,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:52,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:54,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:49:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:54,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:49:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:54,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:49:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:49:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:54,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:49:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:54,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:49:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:54,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:49:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:54,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:49:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:54,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:49:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:49:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:54,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 16:49:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:54,245 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-21 16:49:54,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:54,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654077068] [2022-11-21 16:49:54,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654077068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:49:54,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:49:54,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:49:54,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132998163] [2022-11-21 16:49:54,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:49:54,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:49:54,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:54,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:49:54,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:49:54,315 INFO L87 Difference]: Start difference. First operand has 2789 states, 1924 states have (on average 1.3206860706860706) internal successors, (2541), 1984 states have internal predecessors, (2541), 709 states have call successors, (709), 155 states have call predecessors, (709), 154 states have return successors, (694), 680 states have call predecessors, (694), 694 states have call successors, (694) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-21 16:49:57,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:49:59,280 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 [] [2022-11-21 16:50:18,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:50:18,927 INFO L93 Difference]: Finished difference Result 9134 states and 13412 transitions. [2022-11-21 16:50:18,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:50:18,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 91 [2022-11-21 16:50:18,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:50:19,013 INFO L225 Difference]: With dead ends: 9134 [2022-11-21 16:50:19,013 INFO L226 Difference]: Without dead ends: 6296 [2022-11-21 16:50:19,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:50:19,041 INFO L413 NwaCegarLoop]: 3554 mSDtfsCounter, 7000 mSDsluCounter, 5637 mSDsCounter, 0 mSdLazyCounter, 6266 mSolverCounterSat, 4332 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7443 SdHoareTripleChecker+Valid, 9191 SdHoareTripleChecker+Invalid, 10599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4332 IncrementalHoareTripleChecker+Valid, 6266 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:50:19,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7443 Valid, 9191 Invalid, 10599 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4332 Valid, 6266 Invalid, 1 Unknown, 0 Unchecked, 23.5s Time] [2022-11-21 16:50:19,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6296 states. [2022-11-21 16:50:19,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 5458. [2022-11-21 16:50:19,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 3784 states have (on average 1.3062896405919662) internal successors, (4943), 3870 states have internal predecessors, (4943), 1367 states have call successors, (1367), 307 states have call predecessors, (1367), 306 states have return successors, (1366), 1338 states have call predecessors, (1366), 1366 states have call successors, (1366) [2022-11-21 16:50:19,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 7676 transitions. [2022-11-21 16:50:19,541 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 7676 transitions. Word has length 91 [2022-11-21 16:50:19,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:50:19,543 INFO L495 AbstractCegarLoop]: Abstraction has 5458 states and 7676 transitions. [2022-11-21 16:50:19,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-21 16:50:19,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 7676 transitions. [2022-11-21 16:50:19,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-21 16:50:19,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:50:19,555 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:50:19,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:50:19,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:50:19,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:50:19,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1037000794, now seen corresponding path program 1 times [2022-11-21 16:50:19,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:50:19,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619275684] [2022-11-21 16:50:19,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:50:19,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:50:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:20,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:50:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:20,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:50:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:20,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:50:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:20,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:50:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:20,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:50:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:20,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:50:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:20,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:50:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:20,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:50:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:20,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:50:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:20,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:50:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:20,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 16:50:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:20,653 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-21 16:50:20,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:50:20,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619275684] [2022-11-21 16:50:20,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619275684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:50:20,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:50:20,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:50:20,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325339543] [2022-11-21 16:50:20,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:50:20,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:50:20,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:50:20,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:50:20,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:50:20,657 INFO L87 Difference]: Start difference. First operand 5458 states and 7676 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:50:25,306 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 [] [2022-11-21 16:50:28,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:50:49,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:50:49,048 INFO L93 Difference]: Finished difference Result 12557 states and 18373 transitions. [2022-11-21 16:50:49,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:50:49,049 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2022-11-21 16:50:49,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:50:49,136 INFO L225 Difference]: With dead ends: 12557 [2022-11-21 16:50:49,137 INFO L226 Difference]: Without dead ends: 12549 [2022-11-21 16:50:49,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:50:49,147 INFO L413 NwaCegarLoop]: 3578 mSDtfsCounter, 6972 mSDsluCounter, 11228 mSDsCounter, 0 mSdLazyCounter, 10565 mSolverCounterSat, 4240 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7414 SdHoareTripleChecker+Valid, 14806 SdHoareTripleChecker+Invalid, 14806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4240 IncrementalHoareTripleChecker+Valid, 10565 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:50:49,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7414 Valid, 14806 Invalid, 14806 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4240 Valid, 10565 Invalid, 1 Unknown, 0 Unchecked, 27.4s Time] [2022-11-21 16:50:49,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12549 states. [2022-11-21 16:50:49,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12549 to 10921. [2022-11-21 16:50:49,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10921 states, 7568 states have (on average 1.306553911205074) internal successors, (9888), 7748 states have internal predecessors, (9888), 2728 states have call successors, (2728), 613 states have call predecessors, (2728), 624 states have return successors, (2823), 2671 states have call predecessors, (2823), 2727 states have call successors, (2823) [2022-11-21 16:50:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10921 states to 10921 states and 15439 transitions. [2022-11-21 16:50:49,935 INFO L78 Accepts]: Start accepts. Automaton has 10921 states and 15439 transitions. Word has length 93 [2022-11-21 16:50:49,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:50:49,937 INFO L495 AbstractCegarLoop]: Abstraction has 10921 states and 15439 transitions. [2022-11-21 16:50:49,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:50:49,938 INFO L276 IsEmpty]: Start isEmpty. Operand 10921 states and 15439 transitions. [2022-11-21 16:50:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-11-21 16:50:49,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:50:49,986 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:50:49,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:50:49,987 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:50:49,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:50:49,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2024193942, now seen corresponding path program 1 times [2022-11-21 16:50:49,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:50:49,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495343693] [2022-11-21 16:50:49,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:50:49,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:50:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:50,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:50:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:50,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:50:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:50,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:50:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:50:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:50,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:50:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:50,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:50:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:50,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:50:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:50,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:50:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:50,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:50:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:50,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:50:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:50,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 16:50:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:50,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:50:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:51,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:50:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:51,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:50:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:51,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:50:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:51,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:50:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:51,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:50:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:51,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 16:50:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:50:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:50:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 16:50:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 16:50:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:50:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:50:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:50:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:50:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:50:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 16:50:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:50:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-21 16:50:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:50:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:50:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 16:50:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 16:50:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:50:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:50:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:50:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-21 16:50:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:50:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-21 16:50:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:50:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:50:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:50:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:50:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:50:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:50:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:50:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-21 16:50:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-21 16:50:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:50:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:50:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 16:50:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:50:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:50:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:50:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-21 16:50:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:52,823 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-11-21 16:50:52,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:50:52,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495343693] [2022-11-21 16:50:52,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495343693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:50:52,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:50:52,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-21 16:50:52,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757976572] [2022-11-21 16:50:52,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:50:52,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:50:52,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:50:52,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:50:52,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:50:52,826 INFO L87 Difference]: Start difference. First operand 10921 states and 15439 transitions. Second operand has 15 states, 14 states have (on average 14.642857142857142) internal successors, (205), 7 states have internal predecessors, (205), 3 states have call successors, (57), 8 states have call predecessors, (57), 3 states have return successors, (56), 4 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-21 16:50:57,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:50:59,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:51:03,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:51:05,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:51:06,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:51:52,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:51:52,376 INFO L93 Difference]: Finished difference Result 36619 states and 53542 transitions. [2022-11-21 16:51:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-21 16:51:52,376 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 14.642857142857142) internal successors, (205), 7 states have internal predecessors, (205), 3 states have call successors, (57), 8 states have call predecessors, (57), 3 states have return successors, (56), 4 states have call predecessors, (56), 3 states have call successors, (56) Word has length 374 [2022-11-21 16:51:52,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:51:52,552 INFO L225 Difference]: With dead ends: 36619 [2022-11-21 16:51:52,553 INFO L226 Difference]: Without dead ends: 25725 [2022-11-21 16:51:52,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=365, Invalid=1041, Unknown=0, NotChecked=0, Total=1406 [2022-11-21 16:51:52,618 INFO L413 NwaCegarLoop]: 2436 mSDtfsCounter, 11666 mSDsluCounter, 16701 mSDsCounter, 0 mSdLazyCounter, 32406 mSolverCounterSat, 8726 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12449 SdHoareTripleChecker+Valid, 19137 SdHoareTripleChecker+Invalid, 41134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 8726 IncrementalHoareTripleChecker+Valid, 32406 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:51:52,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12449 Valid, 19137 Invalid, 41134 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [8726 Valid, 32406 Invalid, 2 Unknown, 0 Unchecked, 56.4s Time] [2022-11-21 16:51:52,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25725 states. [2022-11-21 16:51:54,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25725 to 21549. [2022-11-21 16:51:54,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21549 states, 14938 states have (on average 1.3049939750970678) internal successors, (19494), 15292 states have internal predecessors, (19494), 5368 states have call successors, (5368), 1213 states have call predecessors, (5368), 1242 states have return successors, (5553), 5257 states have call predecessors, (5553), 5367 states have call successors, (5553) [2022-11-21 16:51:54,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21549 states to 21549 states and 30415 transitions. [2022-11-21 16:51:54,491 INFO L78 Accepts]: Start accepts. Automaton has 21549 states and 30415 transitions. Word has length 374 [2022-11-21 16:51:54,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:51:54,492 INFO L495 AbstractCegarLoop]: Abstraction has 21549 states and 30415 transitions. [2022-11-21 16:51:54,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 14.642857142857142) internal successors, (205), 7 states have internal predecessors, (205), 3 states have call successors, (57), 8 states have call predecessors, (57), 3 states have return successors, (56), 4 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-21 16:51:54,492 INFO L276 IsEmpty]: Start isEmpty. Operand 21549 states and 30415 transitions. [2022-11-21 16:51:54,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2022-11-21 16:51:54,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:51:54,577 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:51:54,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:51:54,578 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:51:54,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:51:54,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1853981034, now seen corresponding path program 1 times [2022-11-21 16:51:54,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:51:54,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133254715] [2022-11-21 16:51:54,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:51:54,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:51:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:51:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:51:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:51:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:51:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:51:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:51:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:51:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:51:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:51:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:51:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 16:51:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 16:51:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:51:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:51:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 16:51:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-21 16:51:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:51:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:51:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:55,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 16:51:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:51:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 16:51:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 16:51:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:51:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:51:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 16:51:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 16:51:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:51:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:51:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:51:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:51:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:51:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 16:51:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 16:51:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:51:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:51:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:51:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:51:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:51:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 16:51:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:56,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:51:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:51:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:51:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:51:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-21 16:51:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 16:51:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:51:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:51:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 16:51:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:51:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:51:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:51:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-11-21 16:51:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:57,649 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-11-21 16:51:57,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:51:57,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133254715] [2022-11-21 16:51:57,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133254715] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:51:57,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146721713] [2022-11-21 16:51:57,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:51:57,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:51:57,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:51:57,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:51:57,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:51:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:51:59,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 4673 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:51:59,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:51:59,542 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-11-21 16:51:59,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:51:59,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146721713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:51:59,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:51:59,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2022-11-21 16:51:59,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237540011] [2022-11-21 16:51:59,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:51:59,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:51:59,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:51:59,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:51:59,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:51:59,555 INFO L87 Difference]: Start difference. First operand 21549 states and 30415 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-21 16:52:01,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:52:01,336 INFO L93 Difference]: Finished difference Result 60993 states and 85993 transitions. [2022-11-21 16:52:01,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:52:01,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 425 [2022-11-21 16:52:01,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:52:01,549 INFO L225 Difference]: With dead ends: 60993 [2022-11-21 16:52:01,549 INFO L226 Difference]: Without dead ends: 39471 [2022-11-21 16:52:01,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 548 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:52:01,644 INFO L413 NwaCegarLoop]: 4648 mSDtfsCounter, 3218 mSDsluCounter, 3815 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3218 SdHoareTripleChecker+Valid, 8463 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:52:01,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3218 Valid, 8463 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:52:01,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39471 states. [2022-11-21 16:52:04,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39471 to 39463. [2022-11-21 16:52:04,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39463 states, 27540 states have (on average 1.308641975308642) internal successors, (36040), 28112 states have internal predecessors, (36040), 9592 states have call successors, (9592), 2277 states have call predecessors, (9592), 2330 states have return successors, (9913), 9429 states have call predecessors, (9913), 9591 states have call successors, (9913) [2022-11-21 16:52:04,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39463 states to 39463 states and 55545 transitions. [2022-11-21 16:52:04,568 INFO L78 Accepts]: Start accepts. Automaton has 39463 states and 55545 transitions. Word has length 425 [2022-11-21 16:52:04,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:52:04,569 INFO L495 AbstractCegarLoop]: Abstraction has 39463 states and 55545 transitions. [2022-11-21 16:52:04,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-21 16:52:04,570 INFO L276 IsEmpty]: Start isEmpty. Operand 39463 states and 55545 transitions. [2022-11-21 16:52:04,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2022-11-21 16:52:04,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:52:04,696 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 7, 7, 7, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:52:04,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:52:04,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:52:04,920 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:52:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:52:04,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1733840692, now seen corresponding path program 1 times [2022-11-21 16:52:04,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:52:04,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466000222] [2022-11-21 16:52:04,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:04,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:52:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:52:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:52:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:52:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:52:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:52:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:52:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:52:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:52:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:52:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:52:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 16:52:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 16:52:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:52:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:52:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 16:52:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:52:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 16:52:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 16:52:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:52:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 16:52:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 16:52:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:52:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:52:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:52:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:05,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:52:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:52:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 16:52:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 16:52:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:52:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:52:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:52:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:52:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:52:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 16:52:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:52:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:52:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:52:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:52:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-21 16:52:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 16:52:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-11-21 16:52:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-11-21 16:52:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:52:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:52:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:52:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:52:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-21 16:52:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-11-21 16:52:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:52:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:06,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 16:52:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:07,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:52:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:07,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:52:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:07,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:52:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:07,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:52:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:07,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 16:52:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:07,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:07,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:07,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:52:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:07,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 16:52:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:07,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-21 16:52:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-11-21 16:52:07,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:52:07,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466000222] [2022-11-21 16:52:07,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466000222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:52:07,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:52:07,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 16:52:07,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569947209] [2022-11-21 16:52:07,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:52:07,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:52:07,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:52:07,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:52:07,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:52:07,130 INFO L87 Difference]: Start difference. First operand 39463 states and 55545 transitions. Second operand has 10 states, 10 states have (on average 23.0) internal successors, (230), 3 states have internal predecessors, (230), 2 states have call successors, (69), 9 states have call predecessors, (69), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-21 16:52:13,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:52:33,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:52:51,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:52:51,308 INFO L93 Difference]: Finished difference Result 124659 states and 180062 transitions. [2022-11-21 16:52:51,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:52:51,309 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.0) internal successors, (230), 3 states have internal predecessors, (230), 2 states have call successors, (69), 9 states have call predecessors, (69), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 502 [2022-11-21 16:52:51,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:52:51,889 INFO L225 Difference]: With dead ends: 124659 [2022-11-21 16:52:51,889 INFO L226 Difference]: Without dead ends: 85223 [2022-11-21 16:52:52,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2022-11-21 16:52:52,058 INFO L413 NwaCegarLoop]: 2093 mSDtfsCounter, 12329 mSDsluCounter, 6625 mSDsCounter, 0 mSdLazyCounter, 13582 mSolverCounterSat, 9301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12642 SdHoareTripleChecker+Valid, 8718 SdHoareTripleChecker+Invalid, 22883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9301 IncrementalHoareTripleChecker+Valid, 13582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:52:52,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12642 Valid, 8718 Invalid, 22883 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9301 Valid, 13582 Invalid, 0 Unknown, 0 Unchecked, 36.3s Time] [2022-11-21 16:52:52,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85223 states. [2022-11-21 16:52:58,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85223 to 69635. [2022-11-21 16:52:58,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69635 states, 48610 states have (on average 1.304464102036618) internal successors, (63410), 49682 states have internal predecessors, (63410), 16684 states have call successors, (16684), 4249 states have call predecessors, (16684), 4340 states have return successors, (17247), 16311 states have call predecessors, (17247), 16683 states have call successors, (17247) [2022-11-21 16:52:59,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69635 states to 69635 states and 97341 transitions. [2022-11-21 16:52:59,337 INFO L78 Accepts]: Start accepts. Automaton has 69635 states and 97341 transitions. Word has length 502 [2022-11-21 16:52:59,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:52:59,351 INFO L495 AbstractCegarLoop]: Abstraction has 69635 states and 97341 transitions. [2022-11-21 16:52:59,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.0) internal successors, (230), 3 states have internal predecessors, (230), 2 states have call successors, (69), 9 states have call predecessors, (69), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-21 16:52:59,351 INFO L276 IsEmpty]: Start isEmpty. Operand 69635 states and 97341 transitions. [2022-11-21 16:52:59,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2022-11-21 16:52:59,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:52:59,445 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 7, 7, 7, 5, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:52:59,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:52:59,445 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:52:59,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:52:59,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1140275766, now seen corresponding path program 1 times [2022-11-21 16:52:59,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:52:59,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464629043] [2022-11-21 16:52:59,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:59,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:52:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:59,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:52:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:59,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:52:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:59,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:52:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:59,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:52:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:59,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:52:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:59,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:52:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:59,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:52:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:52:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:52:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:59,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:52:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:59,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 16:52:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:59,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:52:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:53:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 16:53:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 16:53:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-21 16:53:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-21 16:53:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-21 16:53:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-21 16:53:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-21 16:53:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 16:53:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:53:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:53:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:53:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:53:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:53:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 16:53:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:53:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:53:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 16:53:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 16:53:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:53:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:53:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:53:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 16:53:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 16:53:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:53:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:53:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:53:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:53:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:53:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 16:53:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 16:53:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:53:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:53:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:53:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:53:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:53:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:53:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 16:53:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:53:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:53:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:53:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 16:53:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:00,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 16:53:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:01,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:53:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:01,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:53:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:01,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 16:53:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:01,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:53:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:01,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:53:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:01,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:53:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:01,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-21 16:53:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:01,079 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-11-21 16:53:01,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:53:01,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464629043] [2022-11-21 16:53:01,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464629043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:53:01,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:53:01,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:53:01,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404394873] [2022-11-21 16:53:01,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:53:01,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:53:01,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:53:01,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:53:01,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:53:01,083 INFO L87 Difference]: Start difference. First operand 69635 states and 97341 transitions. Second operand has 9 states, 9 states have (on average 24.444444444444443) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (63), 8 states have call predecessors, (63), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-21 16:53:07,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:53:09,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 16:53:11,763 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 [] [2022-11-21 16:53:48,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:53:48,196 INFO L93 Difference]: Finished difference Result 195111 states and 280398 transitions. [2022-11-21 16:53:48,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:53:48,197 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 24.444444444444443) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (63), 8 states have call predecessors, (63), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 430 [2022-11-21 16:53:48,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:53:49,110 INFO L225 Difference]: With dead ends: 195111 [2022-11-21 16:53:49,111 INFO L226 Difference]: Without dead ends: 125503 [2022-11-21 16:53:49,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:53:49,360 INFO L413 NwaCegarLoop]: 3773 mSDtfsCounter, 6595 mSDsluCounter, 9553 mSDsCounter, 0 mSdLazyCounter, 15835 mSolverCounterSat, 4016 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7358 SdHoareTripleChecker+Valid, 13326 SdHoareTripleChecker+Invalid, 19852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4016 IncrementalHoareTripleChecker+Valid, 15835 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:53:49,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7358 Valid, 13326 Invalid, 19852 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4016 Valid, 15835 Invalid, 1 Unknown, 0 Unchecked, 36.7s Time] [2022-11-21 16:53:49,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125503 states. [2022-11-21 16:53:57,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125503 to 104623. [2022-11-21 16:53:57,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104623 states, 73074 states have (on average 1.3033637134959082) internal successors, (95242), 74686 states have internal predecessors, (95242), 25016 states have call successors, (25016), 6393 states have call predecessors, (25016), 6532 states have return successors, (25831), 24455 states have call predecessors, (25831), 25015 states have call successors, (25831) [2022-11-21 16:53:58,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104623 states to 104623 states and 146089 transitions. [2022-11-21 16:53:58,561 INFO L78 Accepts]: Start accepts. Automaton has 104623 states and 146089 transitions. Word has length 430 [2022-11-21 16:53:58,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:53:58,562 INFO L495 AbstractCegarLoop]: Abstraction has 104623 states and 146089 transitions. [2022-11-21 16:53:58,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.444444444444443) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (63), 8 states have call predecessors, (63), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-21 16:53:58,562 INFO L276 IsEmpty]: Start isEmpty. Operand 104623 states and 146089 transitions. [2022-11-21 16:53:58,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2022-11-21 16:53:58,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:53:58,668 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 7, 7, 7, 5, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:53:58,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:53:58,669 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:53:58,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:53:58,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1322903990, now seen corresponding path program 1 times [2022-11-21 16:53:58,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:53:58,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745433537] [2022-11-21 16:53:58,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:53:58,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:53:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:54:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:54:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:54:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:54:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:54:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:54:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:54:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:54:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:54:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:54:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 16:54:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:54:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:54:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 16:54:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 16:54:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-21 16:54:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-21 16:54:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-21 16:54:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-21 16:54:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-21 16:54:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-21 16:54:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:54:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:54:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:54:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:00,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 16:54:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:54:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 16:54:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 16:54:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:54:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:54:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 16:54:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 16:54:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:54:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:54:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:54:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:54:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:54:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 16:54:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 16:54:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:54:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:54:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:54:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:54:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:54:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 16:54:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:01,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:02,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:54:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:02,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:54:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:02,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 16:54:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 16:54:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:02,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:54:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:02,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:02,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 16:54:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:02,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:54:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:02,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:54:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:02,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:54:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:02,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-21 16:54:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:02,186 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-11-21 16:54:02,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:02,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745433537] [2022-11-21 16:54:02,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745433537] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:54:02,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767393272] [2022-11-21 16:54:02,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:02,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:54:02,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:54:02,195 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:54:02,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e10f31-6e25-4a5c-b847-31e6ce97e403/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:54:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:04,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 4914 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:54:04,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:54:04,220 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2022-11-21 16:54:04,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:54:04,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767393272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:04,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:54:04,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2022-11-21 16:54:04,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702824303] [2022-11-21 16:54:04,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:04,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:54:04,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:04,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:54:04,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:54:04,223 INFO L87 Difference]: Start difference. First operand 104623 states and 146089 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62)