./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN --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 a78ad5bb06da9a7367e7c9e45cee20fe00113336b7bc544675fdd46fc445ae5c --- 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-6b4ec56 [2022-11-20 11:17:52,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:17:52,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:17:52,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:17:52,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:17:52,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:17:52,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:17:52,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:17:52,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:17:52,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:17:52,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:17:52,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:17:52,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:17:52,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:17:52,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:17:52,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:17:52,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:17:52,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:17:52,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:17:52,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:17:52,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:17:52,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:17:52,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:17:52,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:17:52,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:17:52,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:17:52,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:17:52,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:17:52,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:17:52,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:17:52,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:17:52,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:17:52,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:17:52,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:17:52,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:17:52,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:17:52,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:17:52,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:17:52,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:17:52,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:17:52,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:17:52,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:17:52,704 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:17:52,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:17:52,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:17:52,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:17:52,707 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:17:52,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:17:52,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:17:52,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:17:52,730 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:17:52,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:17:52,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:17:52,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:17:52,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:17:52,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:17:52,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:17:52,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:17:52,734 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:17:52,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:17:52,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:17:52,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:17:52,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:17:52,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:17:52,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:17:52,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:17:52,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:17:52,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:17:52,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:17:52,738 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:17:52,739 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:17:52,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:17:52,740 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_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a78ad5bb06da9a7367e7c9e45cee20fe00113336b7bc544675fdd46fc445ae5c [2022-11-20 11:17:53,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:17:53,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:17:53,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:17:53,147 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:17:53,148 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:17:53,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-20 11:17:57,196 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:17:57,964 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:17:57,965 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-20 11:17:58,025 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/data/4159f08ce/cb0576954b3d49f689b981669bc9ece4/FLAG91c8d22a8 [2022-11-20 11:17:58,045 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/data/4159f08ce/cb0576954b3d49f689b981669bc9ece4 [2022-11-20 11:17:58,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:17:58,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:17:58,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:17:58,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:17:58,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:17:58,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:17:58" (1/1) ... [2022-11-20 11:17:58,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2128fc92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58, skipping insertion in model container [2022-11-20 11:17:58,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:17:58" (1/1) ... [2022-11-20 11:17:58,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:17:58,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:17:59,800 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_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2022-11-20 11:18:00,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:18:00,560 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:18:00,875 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_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2022-11-20 11:18:01,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:18:01,260 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:18:01,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01 WrapperNode [2022-11-20 11:18:01,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:18:01,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:18:01,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:18:01,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:18:01,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2022-11-20 11:18:01,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2022-11-20 11:18:01,503 INFO L138 Inliner]: procedures = 183, calls = 1615, calls flagged for inlining = 84, calls inlined = 65, statements flattened = 2922 [2022-11-20 11:18:01,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:18:01,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:18:01,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:18:01,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:18:01,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2022-11-20 11:18:01,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2022-11-20 11:18:01,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2022-11-20 11:18:01,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2022-11-20 11:18:01,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2022-11-20 11:18:01,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2022-11-20 11:18:01,829 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2022-11-20 11:18:01,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2022-11-20 11:18:01,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:18:01,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:18:01,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:18:01,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:18:01,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (1/1) ... [2022-11-20 11:18:01,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:18:01,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:18:01,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:18:01,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:18:01,998 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 11:18:01,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 11:18:01,999 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2022-11-20 11:18:01,999 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2022-11-20 11:18:01,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 11:18:01,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_5 [2022-11-20 11:18:02,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_5 [2022-11-20 11:18:02,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-11-20 11:18:02,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-11-20 11:18:02,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:18:02,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-20 11:18:02,001 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-20 11:18:02,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:18:02,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:18:02,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:18:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:18:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-20 11:18:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-20 11:18:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-20 11:18:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-20 11:18:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:18:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:18:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-20 11:18:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-20 11:18:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2022-11-20 11:18:02,004 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2022-11-20 11:18:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:18:02,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:18:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-20 11:18:02,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-20 11:18:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2022-11-20 11:18:02,005 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2022-11-20 11:18:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:18:02,066 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:18:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-20 11:18:02,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-20 11:18:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:18:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_skb [2022-11-20 11:18:02,067 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_skb [2022-11-20 11:18:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 11:18:02,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 11:18:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-20 11:18:02,068 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-20 11:18:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2022-11-20 11:18:02,068 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2022-11-20 11:18:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:18:02,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:18:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_rx_cb [2022-11-20 11:18:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_rx_cb [2022-11-20 11:18:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:18:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:18:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:18:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:18:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:18:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-20 11:18:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-20 11:18:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-20 11:18:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-20 11:18:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2022-11-20 11:18:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2022-11-20 11:18:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 11:18:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 11:18:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:18:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2022-11-20 11:18:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2022-11-20 11:18:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2022-11-20 11:18:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2022-11-20 11:18:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:18:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:18:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 11:18:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 11:18:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:18:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:18:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2022-11-20 11:18:02,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2022-11-20 11:18:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 11:18:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:18:02,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:18:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2022-11-20 11:18:02,074 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2022-11-20 11:18:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-20 11:18:02,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-20 11:18:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:18:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2022-11-20 11:18:02,074 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2022-11-20 11:18:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-11-20 11:18:02,075 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-11-20 11:18:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2022-11-20 11:18:02,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2022-11-20 11:18:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:18:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:18:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-20 11:18:02,075 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-20 11:18:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2022-11-20 11:18:02,076 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2022-11-20 11:18:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-11-20 11:18:02,076 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-11-20 11:18:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2022-11-20 11:18:02,076 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2022-11-20 11:18:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 11:18:02,076 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 11:18:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 11:18:02,077 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 11:18:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 11:18:02,077 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 11:18:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2022-11-20 11:18:02,077 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2022-11-20 11:18:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-11-20 11:18:02,077 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-11-20 11:18:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 11:18:02,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 11:18:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2022-11-20 11:18:02,078 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2022-11-20 11:18:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-20 11:18:02,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-20 11:18:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:18:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-20 11:18:02,079 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-20 11:18:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-20 11:18:02,079 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-20 11:18:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-20 11:18:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 11:18:02,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 11:18:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-20 11:18:02,080 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-20 11:18:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:18:02,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:18:02,896 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:18:02,900 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:18:03,232 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:18:04,619 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-20 11:18:33,261 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:18:33,282 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:18:33,282 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:18:33,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:33 BoogieIcfgContainer [2022-11-20 11:18:33,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:18:33,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:18:33,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:18:33,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:18:33,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:17:58" (1/3) ... [2022-11-20 11:18:33,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dcac3f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:18:33, skipping insertion in model container [2022-11-20 11:18:33,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:01" (2/3) ... [2022-11-20 11:18:33,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dcac3f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:18:33, skipping insertion in model container [2022-11-20 11:18:33,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:33" (3/3) ... [2022-11-20 11:18:33,298 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-20 11:18:33,322 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:18:33,322 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:18:33,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:18:33,449 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;@43fa6639, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:18:33,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:18:33,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 836 states, 591 states have (on average 1.3485617597292725) internal successors, (797), 617 states have internal predecessors, (797), 190 states have call successors, (190), 55 states have call predecessors, (190), 53 states have return successors, (185), 182 states have call predecessors, (185), 185 states have call successors, (185) [2022-11-20 11:18:33,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 11:18:33,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:33,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:33,481 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:33,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:33,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1033765739, now seen corresponding path program 1 times [2022-11-20 11:18:33,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:33,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998088241] [2022-11-20 11:18:33,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:33,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:18:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:18:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:34,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:34,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:34,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998088241] [2022-11-20 11:18:34,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998088241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:34,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:34,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:18:34,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282561012] [2022-11-20 11:18:34,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:34,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:18:34,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:34,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:18:34,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:18:34,728 INFO L87 Difference]: Start difference. First operand has 836 states, 591 states have (on average 1.3485617597292725) internal successors, (797), 617 states have internal predecessors, (797), 190 states have call successors, (190), 55 states have call predecessors, (190), 53 states have return successors, (185), 182 states have call predecessors, (185), 185 states have call successors, (185) Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:18:36,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:18:38,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:18:40,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:18:47,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:47,264 INFO L93 Difference]: Finished difference Result 2794 states and 4111 transitions. [2022-11-20 11:18:47,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:18:47,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-20 11:18:47,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:47,319 INFO L225 Difference]: With dead ends: 2794 [2022-11-20 11:18:47,319 INFO L226 Difference]: Without dead ends: 1941 [2022-11-20 11:18:47,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:18:47,341 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 2277 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 1196 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1196 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:47,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 3058 Invalid, 2595 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1196 Valid, 1396 Invalid, 3 Unknown, 0 Unchecked, 11.9s Time] [2022-11-20 11:18:47,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2022-11-20 11:18:47,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1612. [2022-11-20 11:18:47,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1146 states have (on average 1.3324607329842932) internal successors, (1527), 1180 states have internal predecessors, (1527), 362 states have call successors, (362), 104 states have call predecessors, (362), 103 states have return successors, (357), 351 states have call predecessors, (357), 357 states have call successors, (357) [2022-11-20 11:18:47,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2246 transitions. [2022-11-20 11:18:47,652 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2246 transitions. Word has length 28 [2022-11-20 11:18:47,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:47,653 INFO L495 AbstractCegarLoop]: Abstraction has 1612 states and 2246 transitions. [2022-11-20 11:18:47,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:18:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2246 transitions. [2022-11-20 11:18:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 11:18:47,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:47,657 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:47,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:18:47,658 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:47,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:47,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1351096241, now seen corresponding path program 1 times [2022-11-20 11:18:47,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:47,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280838129] [2022-11-20 11:18:47,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:47,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:48,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:18:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:48,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:18:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:48,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:18:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:48,241 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:18:48,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:48,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280838129] [2022-11-20 11:18:48,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280838129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:48,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:48,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:18:48,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319839605] [2022-11-20 11:18:48,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:48,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:18:48,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:48,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:18:48,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:18:48,249 INFO L87 Difference]: Start difference. First operand 1612 states and 2246 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:18:50,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:18:52,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:18:55,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:55,886 INFO L93 Difference]: Finished difference Result 1967 states and 2754 transitions. [2022-11-20 11:18:55,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:18:55,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-11-20 11:18:55,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:55,908 INFO L225 Difference]: With dead ends: 1967 [2022-11-20 11:18:55,909 INFO L226 Difference]: Without dead ends: 1954 [2022-11-20 11:18:55,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:18:55,914 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 1719 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 689 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:55,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1815 Valid, 2012 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 724 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-11-20 11:18:55,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2022-11-20 11:18:56,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1612. [2022-11-20 11:18:56,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1146 states have (on average 1.331588132635253) internal successors, (1526), 1180 states have internal predecessors, (1526), 362 states have call successors, (362), 104 states have call predecessors, (362), 103 states have return successors, (357), 351 states have call predecessors, (357), 357 states have call successors, (357) [2022-11-20 11:18:56,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2245 transitions. [2022-11-20 11:18:56,105 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2245 transitions. Word has length 38 [2022-11-20 11:18:56,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:56,108 INFO L495 AbstractCegarLoop]: Abstraction has 1612 states and 2245 transitions. [2022-11-20 11:18:56,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:18:56,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2245 transitions. [2022-11-20 11:18:56,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 11:18:56,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:56,118 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:56,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:18:56,125 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:56,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:56,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1293837939, now seen corresponding path program 1 times [2022-11-20 11:18:56,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:56,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370457814] [2022-11-20 11:18:56,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:56,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:57,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:18:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:57,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:18:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:57,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:18:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:57,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:18:57,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:57,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370457814] [2022-11-20 11:18:57,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370457814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:57,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:57,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:18:57,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004316025] [2022-11-20 11:18:57,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:57,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:18:57,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:57,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:18:57,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:18:57,221 INFO L87 Difference]: Start difference. First operand 1612 states and 2245 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:18:59,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:01,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:19:07,816 INFO L93 Difference]: Finished difference Result 5452 states and 7778 transitions. [2022-11-20 11:19:07,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:19:07,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-11-20 11:19:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:19:07,849 INFO L225 Difference]: With dead ends: 5452 [2022-11-20 11:19:07,849 INFO L226 Difference]: Without dead ends: 3858 [2022-11-20 11:19:07,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:19:07,866 INFO L413 NwaCegarLoop]: 1158 mSDtfsCounter, 2117 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 1125 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2227 SdHoareTripleChecker+Valid, 3291 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1125 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:19:07,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2227 Valid, 3291 Invalid, 2588 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1125 Valid, 1461 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2022-11-20 11:19:07,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2022-11-20 11:19:08,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3195. [2022-11-20 11:19:08,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3195 states, 2274 states have (on average 1.3306948109058927) internal successors, (3026), 2338 states have internal predecessors, (3026), 716 states have call successors, (716), 205 states have call predecessors, (716), 204 states have return successors, (745), 699 states have call predecessors, (745), 711 states have call successors, (745) [2022-11-20 11:19:08,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3195 states to 3195 states and 4487 transitions. [2022-11-20 11:19:08,163 INFO L78 Accepts]: Start accepts. Automaton has 3195 states and 4487 transitions. Word has length 38 [2022-11-20 11:19:08,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:19:08,164 INFO L495 AbstractCegarLoop]: Abstraction has 3195 states and 4487 transitions. [2022-11-20 11:19:08,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:19:08,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3195 states and 4487 transitions. [2022-11-20 11:19:08,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 11:19:08,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:19:08,169 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:19:08,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:19:08,170 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:19:08,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:08,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1454682874, now seen corresponding path program 1 times [2022-11-20 11:19:08,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:08,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350343351] [2022-11-20 11:19:08,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:08,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:08,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:19:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:09,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:19:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:09,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:19:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:09,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:19:09,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:09,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350343351] [2022-11-20 11:19:09,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350343351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:09,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:09,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:19:09,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352144075] [2022-11-20 11:19:09,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:09,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:19:09,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:09,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:19:09,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:19:09,073 INFO L87 Difference]: Start difference. First operand 3195 states and 4487 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:19:11,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:13,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:19,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:19:19,336 INFO L93 Difference]: Finished difference Result 10841 states and 15816 transitions. [2022-11-20 11:19:19,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:19:19,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-11-20 11:19:19,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:19:19,403 INFO L225 Difference]: With dead ends: 10841 [2022-11-20 11:19:19,404 INFO L226 Difference]: Without dead ends: 7664 [2022-11-20 11:19:19,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:19:19,429 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 2245 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 1206 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2349 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 2639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1206 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:19:19,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2349 Valid, 3228 Invalid, 2639 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1206 Valid, 1431 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2022-11-20 11:19:19,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7664 states. [2022-11-20 11:19:20,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7664 to 6530. [2022-11-20 11:19:20,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6530 states, 4659 states have (on average 1.3226014166130071) internal successors, (6162), 4783 states have internal predecessors, (6162), 1440 states have call successors, (1440), 407 states have call predecessors, (1440), 430 states have return successors, (1683), 1435 states have call predecessors, (1683), 1435 states have call successors, (1683) [2022-11-20 11:19:20,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6530 states to 6530 states and 9285 transitions. [2022-11-20 11:19:20,068 INFO L78 Accepts]: Start accepts. Automaton has 6530 states and 9285 transitions. Word has length 39 [2022-11-20 11:19:20,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:19:20,071 INFO L495 AbstractCegarLoop]: Abstraction has 6530 states and 9285 transitions. [2022-11-20 11:19:20,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:19:20,071 INFO L276 IsEmpty]: Start isEmpty. Operand 6530 states and 9285 transitions. [2022-11-20 11:19:20,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 11:19:20,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:19:20,073 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:19:20,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:19:20,074 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:19:20,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:20,074 INFO L85 PathProgramCache]: Analyzing trace with hash -2145903696, now seen corresponding path program 1 times [2022-11-20 11:19:20,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:20,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440483149] [2022-11-20 11:19:20,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:20,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:20,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:19:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:20,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:19:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:20,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:19:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:19:20,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:20,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440483149] [2022-11-20 11:19:20,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440483149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:20,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:20,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:19:20,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332973179] [2022-11-20 11:19:20,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:20,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:19:20,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:20,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:19:20,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:19:20,557 INFO L87 Difference]: Start difference. First operand 6530 states and 9285 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:19:22,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:24,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:30,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:19:30,941 INFO L93 Difference]: Finished difference Result 7662 states and 11133 transitions. [2022-11-20 11:19:30,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:19:30,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-11-20 11:19:30,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:19:31,017 INFO L225 Difference]: With dead ends: 7662 [2022-11-20 11:19:31,017 INFO L226 Difference]: Without dead ends: 7659 [2022-11-20 11:19:31,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:19:31,027 INFO L413 NwaCegarLoop]: 1131 mSDtfsCounter, 2236 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 1195 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2340 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 2629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1195 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:19:31,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2340 Valid, 3224 Invalid, 2629 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1195 Valid, 1432 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2022-11-20 11:19:31,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2022-11-20 11:19:31,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 6531. [2022-11-20 11:19:31,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6531 states, 4660 states have (on average 1.3225321888412016) internal successors, (6163), 4784 states have internal predecessors, (6163), 1440 states have call successors, (1440), 407 states have call predecessors, (1440), 430 states have return successors, (1683), 1435 states have call predecessors, (1683), 1435 states have call successors, (1683) [2022-11-20 11:19:31,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6531 states to 6531 states and 9286 transitions. [2022-11-20 11:19:31,823 INFO L78 Accepts]: Start accepts. Automaton has 6531 states and 9286 transitions. Word has length 40 [2022-11-20 11:19:31,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:19:31,824 INFO L495 AbstractCegarLoop]: Abstraction has 6531 states and 9286 transitions. [2022-11-20 11:19:31,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:19:31,825 INFO L276 IsEmpty]: Start isEmpty. Operand 6531 states and 9286 transitions. [2022-11-20 11:19:31,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-20 11:19:31,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:19:31,827 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:19:31,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:19:31,828 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:19:31,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:31,828 INFO L85 PathProgramCache]: Analyzing trace with hash -2098907831, now seen corresponding path program 1 times [2022-11-20 11:19:31,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:31,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553228957] [2022-11-20 11:19:31,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:31,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:32,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:19:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:32,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:19:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:32,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:19:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:32,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:19:32,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:32,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553228957] [2022-11-20 11:19:32,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553228957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:32,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:32,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:19:32,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386873912] [2022-11-20 11:19:32,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:32,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:19:32,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:32,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:19:32,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:19:32,279 INFO L87 Difference]: Start difference. First operand 6531 states and 9286 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:19:34,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:36,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:39,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:19:39,847 INFO L93 Difference]: Finished difference Result 7658 states and 11129 transitions. [2022-11-20 11:19:39,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:19:39,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-11-20 11:19:39,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:19:39,917 INFO L225 Difference]: With dead ends: 7658 [2022-11-20 11:19:39,917 INFO L226 Difference]: Without dead ends: 7655 [2022-11-20 11:19:39,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:19:39,924 INFO L413 NwaCegarLoop]: 904 mSDtfsCounter, 1674 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 672 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 672 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:19:39,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 1969 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [672 Valid, 722 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-11-20 11:19:39,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7655 states. [2022-11-20 11:19:40,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7655 to 6530. [2022-11-20 11:19:40,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6530 states, 4660 states have (on average 1.3223175965665237) internal successors, (6162), 4783 states have internal predecessors, (6162), 1439 states have call successors, (1439), 407 states have call predecessors, (1439), 430 states have return successors, (1683), 1435 states have call predecessors, (1683), 1435 states have call successors, (1683) [2022-11-20 11:19:40,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6530 states to 6530 states and 9284 transitions. [2022-11-20 11:19:40,819 INFO L78 Accepts]: Start accepts. Automaton has 6530 states and 9284 transitions. Word has length 41 [2022-11-20 11:19:40,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:19:40,822 INFO L495 AbstractCegarLoop]: Abstraction has 6530 states and 9284 transitions. [2022-11-20 11:19:40,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:19:40,823 INFO L276 IsEmpty]: Start isEmpty. Operand 6530 states and 9284 transitions. [2022-11-20 11:19:40,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 11:19:40,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:19:40,826 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:19:40,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:19:40,827 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:19:40,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:40,828 INFO L85 PathProgramCache]: Analyzing trace with hash -642031149, now seen corresponding path program 1 times [2022-11-20 11:19:40,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:40,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638774748] [2022-11-20 11:19:40,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:40,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:41,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:19:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:41,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:19:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:41,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:19:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:41,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:19:41,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:41,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638774748] [2022-11-20 11:19:41,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638774748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:41,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:41,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:19:41,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316237116] [2022-11-20 11:19:41,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:41,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:19:41,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:41,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:19:41,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:19:41,238 INFO L87 Difference]: Start difference. First operand 6530 states and 9284 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:19:43,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:45,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:48,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:19:48,571 INFO L93 Difference]: Finished difference Result 7657 states and 11127 transitions. [2022-11-20 11:19:48,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:19:48,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-11-20 11:19:48,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:19:48,618 INFO L225 Difference]: With dead ends: 7657 [2022-11-20 11:19:48,618 INFO L226 Difference]: Without dead ends: 7645 [2022-11-20 11:19:48,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:19:48,625 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 1678 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 673 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 1968 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:19:48,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 1968 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 718 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-11-20 11:19:48,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7645 states. [2022-11-20 11:19:49,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7645 to 6520. [2022-11-20 11:19:49,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6520 states, 4651 states have (on average 1.3220812728445495) internal successors, (6149), 4773 states have internal predecessors, (6149), 1438 states have call successors, (1438), 407 states have call predecessors, (1438), 430 states have return successors, (1683), 1435 states have call predecessors, (1683), 1435 states have call successors, (1683) [2022-11-20 11:19:49,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6520 states to 6520 states and 9270 transitions. [2022-11-20 11:19:49,268 INFO L78 Accepts]: Start accepts. Automaton has 6520 states and 9270 transitions. Word has length 42 [2022-11-20 11:19:49,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:19:49,268 INFO L495 AbstractCegarLoop]: Abstraction has 6520 states and 9270 transitions. [2022-11-20 11:19:49,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:19:49,269 INFO L276 IsEmpty]: Start isEmpty. Operand 6520 states and 9270 transitions. [2022-11-20 11:19:49,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-20 11:19:49,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:19:49,278 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 11:19:49,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:19:49,279 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:19:49,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:19:49,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1100229494, now seen corresponding path program 1 times [2022-11-20 11:19:49,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:19:49,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462353173] [2022-11-20 11:19:49,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:19:49,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:19:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:49,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:19:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:49,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:19:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:49,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 11:19:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:49,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:19:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:49,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:19:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 11:19:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:49,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 11:19:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:50,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:19:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:50,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-20 11:19:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:50,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:19:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:50,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 11:19:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:50,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:19:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:50,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 11:19:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:50,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-20 11:19:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:50,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-20 11:19:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:50,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 11:19:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:19:50,247 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 11:19:50,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:19:50,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462353173] [2022-11-20 11:19:50,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462353173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:19:50,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:19:50,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:19:50,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893349876] [2022-11-20 11:19:50,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:19:50,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:19:50,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:19:50,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:19:50,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:19:50,251 INFO L87 Difference]: Start difference. First operand 6520 states and 9270 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:19:52,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:54,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:56,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:19:58,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:20:07,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:20:07,794 INFO L93 Difference]: Finished difference Result 16735 states and 24716 transitions. [2022-11-20 11:20:07,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:20:07,795 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2022-11-20 11:20:07,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:20:07,865 INFO L225 Difference]: With dead ends: 16735 [2022-11-20 11:20:07,865 INFO L226 Difference]: Without dead ends: 10233 [2022-11-20 11:20:07,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:20:07,906 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 1414 mSDsluCounter, 2811 mSDsCounter, 0 mSdLazyCounter, 3101 mSolverCounterSat, 589 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 3694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 3101 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:20:07,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 3514 Invalid, 3694 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [589 Valid, 3101 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2022-11-20 11:20:07,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10233 states. [2022-11-20 11:20:09,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10233 to 7386. [2022-11-20 11:20:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7386 states, 5286 states have (on average 1.3032538781687477) internal successors, (6889), 5428 states have internal predecessors, (6889), 1564 states have call successors, (1564), 408 states have call predecessors, (1564), 535 states have return successors, (2125), 1657 states have call predecessors, (2125), 1561 states have call successors, (2125) [2022-11-20 11:20:09,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7386 states to 7386 states and 10578 transitions. [2022-11-20 11:20:09,160 INFO L78 Accepts]: Start accepts. Automaton has 7386 states and 10578 transitions. Word has length 143 [2022-11-20 11:20:09,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:20:09,161 INFO L495 AbstractCegarLoop]: Abstraction has 7386 states and 10578 transitions. [2022-11-20 11:20:09,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:20:09,162 INFO L276 IsEmpty]: Start isEmpty. Operand 7386 states and 10578 transitions. [2022-11-20 11:20:09,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-20 11:20:09,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:20:09,170 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-20 11:20:09,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:20:09,171 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:20:09,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:20:09,172 INFO L85 PathProgramCache]: Analyzing trace with hash -336314877, now seen corresponding path program 1 times [2022-11-20 11:20:09,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:20:09,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89440002] [2022-11-20 11:20:09,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:20:09,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:20:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:09,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:20:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:20:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:09,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:20:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:09,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-20 11:20:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:09,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:20:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:09,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:20:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:09,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 11:20:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:09,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 11:20:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:10,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:20:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:10,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-20 11:20:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:10,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:20:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:10,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 11:20:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:10,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:20:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:10,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 11:20:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:10,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-20 11:20:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:10,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-20 11:20:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:10,281 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 11:20:10,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:20:10,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89440002] [2022-11-20 11:20:10,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89440002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:20:10,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:20:10,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:20:10,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401013423] [2022-11-20 11:20:10,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:20:10,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:20:10,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:20:10,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:20:10,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:20:10,288 INFO L87 Difference]: Start difference. First operand 7386 states and 10578 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 11:20:12,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:20:14,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:20:16,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:20:18,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:20:20,403 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 [] [2022-11-20 11:20:28,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:20:28,650 INFO L93 Difference]: Finished difference Result 18033 states and 26572 transitions. [2022-11-20 11:20:28,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:20:28,651 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 152 [2022-11-20 11:20:28,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:20:28,717 INFO L225 Difference]: With dead ends: 18033 [2022-11-20 11:20:28,717 INFO L226 Difference]: Without dead ends: 10669 [2022-11-20 11:20:28,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:20:28,755 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 1739 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 2759 mSolverCounterSat, 861 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 3032 SdHoareTripleChecker+Invalid, 3625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 861 IncrementalHoareTripleChecker+Valid, 2759 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:20:28,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 3032 Invalid, 3625 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [861 Valid, 2759 Invalid, 5 Unknown, 0 Unchecked, 16.8s Time] [2022-11-20 11:20:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10669 states. [2022-11-20 11:20:29,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10669 to 7758. [2022-11-20 11:20:29,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7758 states, 5610 states have (on average 1.3019607843137255) internal successors, (7304), 5752 states have internal predecessors, (7304), 1580 states have call successors, (1580), 440 states have call predecessors, (1580), 567 states have return successors, (2117), 1673 states have call predecessors, (2117), 1577 states have call successors, (2117) [2022-11-20 11:20:29,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7758 states to 7758 states and 11001 transitions. [2022-11-20 11:20:29,780 INFO L78 Accepts]: Start accepts. Automaton has 7758 states and 11001 transitions. Word has length 152 [2022-11-20 11:20:29,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:20:29,781 INFO L495 AbstractCegarLoop]: Abstraction has 7758 states and 11001 transitions. [2022-11-20 11:20:29,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 11:20:29,782 INFO L276 IsEmpty]: Start isEmpty. Operand 7758 states and 11001 transitions. [2022-11-20 11:20:29,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-20 11:20:29,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:20:29,789 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-20 11:20:29,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:20:29,790 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:20:29,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:20:29,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1053597938, now seen corresponding path program 1 times [2022-11-20 11:20:29,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:20:29,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864697003] [2022-11-20 11:20:29,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:20:29,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:20:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:20:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:20:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:20:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:20:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:20:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-20 11:20:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 11:20:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:20:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 11:20:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:20:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 11:20:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 11:20:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:20:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 11:20:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:20:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 11:20:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:20:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:30,684 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-20 11:20:30,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:20:30,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864697003] [2022-11-20 11:20:30,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864697003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:20:30,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:20:30,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:20:30,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94968645] [2022-11-20 11:20:30,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:20:30,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:20:30,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:20:30,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:20:30,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:20:30,687 INFO L87 Difference]: Start difference. First operand 7758 states and 11001 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:20:32,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:20:34,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:20:36,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:20:43,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:20:43,373 INFO L93 Difference]: Finished difference Result 20593 states and 30578 transitions. [2022-11-20 11:20:43,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:20:43,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 156 [2022-11-20 11:20:43,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:20:43,451 INFO L225 Difference]: With dead ends: 20593 [2022-11-20 11:20:43,451 INFO L226 Difference]: Without dead ends: 12857 [2022-11-20 11:20:43,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:20:43,487 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 1877 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 1419 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 3256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1419 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:20:43,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 2844 Invalid, 3256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1419 Valid, 1834 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2022-11-20 11:20:43,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12857 states. [2022-11-20 11:20:44,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12857 to 7852. [2022-11-20 11:20:44,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7852 states, 5650 states have (on average 1.305132743362832) internal successors, (7374), 5792 states have internal predecessors, (7374), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 539 states have return successors, (1963), 1735 states have call predecessors, (1963), 1659 states have call successors, (1963) [2022-11-20 11:20:44,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7852 states to 7852 states and 10999 transitions. [2022-11-20 11:20:44,726 INFO L78 Accepts]: Start accepts. Automaton has 7852 states and 10999 transitions. Word has length 156 [2022-11-20 11:20:44,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:20:44,727 INFO L495 AbstractCegarLoop]: Abstraction has 7852 states and 10999 transitions. [2022-11-20 11:20:44,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:20:44,728 INFO L276 IsEmpty]: Start isEmpty. Operand 7852 states and 10999 transitions. [2022-11-20 11:20:44,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-20 11:20:44,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:20:44,736 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-20 11:20:44,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:20:44,736 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:20:44,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:20:44,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1828485427, now seen corresponding path program 1 times [2022-11-20 11:20:44,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:20:44,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932834334] [2022-11-20 11:20:44,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:20:44,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:20:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:20:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:20:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:20:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:20:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:20:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-20 11:20:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 11:20:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:20:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 11:20:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:20:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 11:20:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 11:20:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:20:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 11:20:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:20:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 11:20:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:20:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:20:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-20 11:20:46,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:20:46,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932834334] [2022-11-20 11:20:46,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932834334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:20:46,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:20:46,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:20:46,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187338722] [2022-11-20 11:20:46,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:20:46,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:20:46,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:20:46,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:20:46,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:20:46,097 INFO L87 Difference]: Start difference. First operand 7852 states and 10999 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:20:48,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:20:50,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:20:52,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:20:54,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:21:03,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:21:03,441 INFO L93 Difference]: Finished difference Result 21907 states and 32662 transitions. [2022-11-20 11:21:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:21:03,442 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 158 [2022-11-20 11:21:03,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:21:03,513 INFO L225 Difference]: With dead ends: 21907 [2022-11-20 11:21:03,514 INFO L226 Difference]: Without dead ends: 14077 [2022-11-20 11:21:03,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:21:03,544 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 1773 mSDsluCounter, 5753 mSDsCounter, 0 mSdLazyCounter, 3892 mSolverCounterSat, 1126 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1935 SdHoareTripleChecker+Valid, 6713 SdHoareTripleChecker+Invalid, 5022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1126 IncrementalHoareTripleChecker+Valid, 3892 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:21:03,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1935 Valid, 6713 Invalid, 5022 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1126 Valid, 3892 Invalid, 4 Unknown, 0 Unchecked, 15.1s Time] [2022-11-20 11:21:03,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14077 states. [2022-11-20 11:21:05,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14077 to 7884. [2022-11-20 11:21:05,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7884 states, 5674 states have (on average 1.3038420867113147) internal successors, (7398), 5816 states have internal predecessors, (7398), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 547 states have return successors, (1971), 1743 states have call predecessors, (1971), 1659 states have call successors, (1971) [2022-11-20 11:21:05,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 11031 transitions. [2022-11-20 11:21:05,309 INFO L78 Accepts]: Start accepts. Automaton has 7884 states and 11031 transitions. Word has length 158 [2022-11-20 11:21:05,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:21:05,309 INFO L495 AbstractCegarLoop]: Abstraction has 7884 states and 11031 transitions. [2022-11-20 11:21:05,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:21:05,310 INFO L276 IsEmpty]: Start isEmpty. Operand 7884 states and 11031 transitions. [2022-11-20 11:21:05,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-20 11:21:05,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:21:05,318 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-20 11:21:05,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:21:05,319 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:21:05,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:21:05,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1903976846, now seen corresponding path program 1 times [2022-11-20 11:21:05,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:21:05,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417697101] [2022-11-20 11:21:05,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:21:05,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:21:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:21:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:21:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:21:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:21:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:21:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-20 11:21:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 11:21:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:21:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 11:21:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:21:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 11:21:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 11:21:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:21:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 11:21:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:21:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 11:21:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:21:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:06,341 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-20 11:21:06,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:21:06,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417697101] [2022-11-20 11:21:06,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417697101] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:21:06,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802048565] [2022-11-20 11:21:06,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:21:06,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:21:06,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:21:06,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:21:06,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:21:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:07,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 3584 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:21:07,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:21:07,857 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-20 11:21:07,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:21:08,009 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-20 11:21:08,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802048565] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:21:08,010 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:21:08,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 9 [2022-11-20 11:21:08,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296188272] [2022-11-20 11:21:08,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:21:08,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:21:08,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:21:08,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:21:08,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:21:08,013 INFO L87 Difference]: Start difference. First operand 7884 states and 11031 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:21:10,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:21:12,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:21:14,101 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 [] [2022-11-20 11:21:22,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:21:22,147 INFO L93 Difference]: Finished difference Result 20787 states and 30660 transitions. [2022-11-20 11:21:22,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:21:22,159 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 159 [2022-11-20 11:21:22,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:21:22,228 INFO L225 Difference]: With dead ends: 20787 [2022-11-20 11:21:22,228 INFO L226 Difference]: Without dead ends: 12925 [2022-11-20 11:21:22,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 350 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:21:22,261 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 1940 mSDsluCounter, 3499 mSDsCounter, 0 mSdLazyCounter, 2852 mSolverCounterSat, 1441 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2070 SdHoareTripleChecker+Valid, 4278 SdHoareTripleChecker+Invalid, 4296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1441 IncrementalHoareTripleChecker+Valid, 2852 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:21:22,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2070 Valid, 4278 Invalid, 4296 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1441 Valid, 2852 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2022-11-20 11:21:22,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12925 states. [2022-11-20 11:21:23,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12925 to 7924. [2022-11-20 11:21:23,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7924 states, 5714 states have (on average 1.3031151557577878) internal successors, (7446), 5856 states have internal predecessors, (7446), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 547 states have return successors, (1971), 1743 states have call predecessors, (1971), 1659 states have call successors, (1971) [2022-11-20 11:21:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 11079 transitions. [2022-11-20 11:21:23,496 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 11079 transitions. Word has length 159 [2022-11-20 11:21:23,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:21:23,496 INFO L495 AbstractCegarLoop]: Abstraction has 7924 states and 11079 transitions. [2022-11-20 11:21:23,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:21:23,497 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 11079 transitions. [2022-11-20 11:21:23,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-20 11:21:23,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:21:23,506 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:21:23,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 11:21:23,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:21:23,722 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:21:23,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:21:23,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1296137521, now seen corresponding path program 1 times [2022-11-20 11:21:23,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:21:23,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142323563] [2022-11-20 11:21:23,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:21:23,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:21:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:21:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:21:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:21:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:21:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:21:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-20 11:21:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 11:21:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:21:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 11:21:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:21:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 11:21:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 11:21:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:21:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 11:21:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:21:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 11:21:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:21:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-20 11:21:24,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:21:24,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142323563] [2022-11-20 11:21:24,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142323563] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:21:24,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290617548] [2022-11-20 11:21:24,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:21:24,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:21:24,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:21:24,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:21:24,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:21:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:26,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 3590 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:21:26,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:21:26,386 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-20 11:21:26,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:21:26,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290617548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:21:26,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:21:26,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-11-20 11:21:26,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102800013] [2022-11-20 11:21:26,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:21:26,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:21:26,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:21:26,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:21:26,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:21:26,388 INFO L87 Difference]: Start difference. First operand 7924 states and 11079 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:21:27,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:21:27,434 INFO L93 Difference]: Finished difference Result 17090 states and 24052 transitions. [2022-11-20 11:21:27,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:21:27,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 161 [2022-11-20 11:21:27,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:21:27,481 INFO L225 Difference]: With dead ends: 17090 [2022-11-20 11:21:27,481 INFO L226 Difference]: Without dead ends: 9188 [2022-11-20 11:21:27,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:21:27,512 INFO L413 NwaCegarLoop]: 1322 mSDtfsCounter, 160 mSDsluCounter, 6426 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 7748 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:21:27,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 7748 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:21:27,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9188 states. [2022-11-20 11:21:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9188 to 7916. [2022-11-20 11:21:28,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7916 states, 5706 states have (on average 1.30354013319313) internal successors, (7438), 5848 states have internal predecessors, (7438), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 547 states have return successors, (1971), 1743 states have call predecessors, (1971), 1659 states have call successors, (1971) [2022-11-20 11:21:28,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7916 states to 7916 states and 11071 transitions. [2022-11-20 11:21:28,845 INFO L78 Accepts]: Start accepts. Automaton has 7916 states and 11071 transitions. Word has length 161 [2022-11-20 11:21:28,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:21:28,846 INFO L495 AbstractCegarLoop]: Abstraction has 7916 states and 11071 transitions. [2022-11-20 11:21:28,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:21:28,847 INFO L276 IsEmpty]: Start isEmpty. Operand 7916 states and 11071 transitions. [2022-11-20 11:21:28,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-20 11:21:28,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:21:28,859 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 11:21:28,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:21:29,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-20 11:21:29,074 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:21:29,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:21:29,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2040638575, now seen corresponding path program 1 times [2022-11-20 11:21:29,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:21:29,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336638475] [2022-11-20 11:21:29,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:21:29,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:21:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:21:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:21:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:21:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:21:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:21:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-20 11:21:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 11:21:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:21:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 11:21:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:21:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 11:21:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 11:21:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:21:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 11:21:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:21:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 11:21:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:29,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:21:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:30,006 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-11-20 11:21:30,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:21:30,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336638475] [2022-11-20 11:21:30,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336638475] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:21:30,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459267708] [2022-11-20 11:21:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:21:30,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:21:30,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:21:30,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:21:30,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:21:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:31,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 3601 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:21:31,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:21:31,794 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-11-20 11:21:31,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:21:31,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459267708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:21:31,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:21:31,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2022-11-20 11:21:31,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039046631] [2022-11-20 11:21:31,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:21:31,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:21:31,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:21:31,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:21:31,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:21:31,797 INFO L87 Difference]: Start difference. First operand 7916 states and 11071 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:21:33,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:21:35,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:21:35,380 INFO L93 Difference]: Finished difference Result 18440 states and 25745 transitions. [2022-11-20 11:21:35,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:21:35,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 165 [2022-11-20 11:21:35,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:21:35,428 INFO L225 Difference]: With dead ends: 18440 [2022-11-20 11:21:35,428 INFO L226 Difference]: Without dead ends: 10546 [2022-11-20 11:21:35,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:21:35,460 INFO L413 NwaCegarLoop]: 1385 mSDtfsCounter, 811 mSDsluCounter, 7919 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 65 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 9304 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:21:35,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 9304 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 111 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 11:21:35,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10546 states. [2022-11-20 11:21:36,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10546 to 7940. [2022-11-20 11:21:36,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7940 states, 5730 states have (on average 1.30087260034904) internal successors, (7454), 5872 states have internal predecessors, (7454), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 547 states have return successors, (1971), 1743 states have call predecessors, (1971), 1659 states have call successors, (1971) [2022-11-20 11:21:36,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7940 states to 7940 states and 11087 transitions. [2022-11-20 11:21:36,688 INFO L78 Accepts]: Start accepts. Automaton has 7940 states and 11087 transitions. Word has length 165 [2022-11-20 11:21:36,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:21:36,689 INFO L495 AbstractCegarLoop]: Abstraction has 7940 states and 11087 transitions. [2022-11-20 11:21:36,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:21:36,690 INFO L276 IsEmpty]: Start isEmpty. Operand 7940 states and 11087 transitions. [2022-11-20 11:21:36,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-20 11:21:36,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:21:36,698 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 11:21:36,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:21:36,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 11:21:36,913 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:21:36,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:21:36,913 INFO L85 PathProgramCache]: Analyzing trace with hash 760774897, now seen corresponding path program 1 times [2022-11-20 11:21:36,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:21:36,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077422411] [2022-11-20 11:21:36,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:21:36,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:21:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:21:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:21:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:21:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:21:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:21:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-20 11:21:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 11:21:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:21:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 11:21:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:21:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-20 11:21:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 11:21:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:21:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-20 11:21:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:21:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-20 11:21:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:21:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:38,779 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-20 11:21:38,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:21:38,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077422411] [2022-11-20 11:21:38,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077422411] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:21:38,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022356688] [2022-11-20 11:21:38,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:21:38,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:21:38,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:21:38,782 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:21:38,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:21:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:40,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 3596 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 11:21:40,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:21:40,985 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-20 11:21:40,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:21:40,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022356688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:21:40,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:21:40,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2022-11-20 11:21:40,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35052723] [2022-11-20 11:21:40,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:21:40,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:21:40,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:21:40,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:21:40,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:21:40,989 INFO L87 Difference]: Start difference. First operand 7940 states and 11087 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:21:43,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:21:45,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:21:47,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:21:49,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:21:53,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:21:53,036 INFO L93 Difference]: Finished difference Result 16247 states and 22788 transitions. [2022-11-20 11:21:53,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:21:53,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 165 [2022-11-20 11:21:53,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:21:53,069 INFO L225 Difference]: With dead ends: 16247 [2022-11-20 11:21:53,069 INFO L226 Difference]: Without dead ends: 8329 [2022-11-20 11:21:53,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:21:53,097 INFO L413 NwaCegarLoop]: 1548 mSDtfsCounter, 1250 mSDsluCounter, 5273 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 6821 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:21:53,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 6821 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1643 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time] [2022-11-20 11:21:53,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8329 states. [2022-11-20 11:21:54,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8329 to 7960. [2022-11-20 11:21:54,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7960 states, 5746 states have (on average 1.3000348068221372) internal successors, (7470), 5888 states have internal predecessors, (7470), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 551 states have return successors, (1979), 1747 states have call predecessors, (1979), 1659 states have call successors, (1979) [2022-11-20 11:21:54,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7960 states to 7960 states and 11111 transitions. [2022-11-20 11:21:54,232 INFO L78 Accepts]: Start accepts. Automaton has 7960 states and 11111 transitions. Word has length 165 [2022-11-20 11:21:54,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:21:54,233 INFO L495 AbstractCegarLoop]: Abstraction has 7960 states and 11111 transitions. [2022-11-20 11:21:54,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:21:54,233 INFO L276 IsEmpty]: Start isEmpty. Operand 7960 states and 11111 transitions. [2022-11-20 11:21:54,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-20 11:21:54,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:21:54,241 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-11-20 11:21:54,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:21:54,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:21:54,457 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:21:54,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:21:54,458 INFO L85 PathProgramCache]: Analyzing trace with hash 578666294, now seen corresponding path program 1 times [2022-11-20 11:21:54,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:21:54,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862279993] [2022-11-20 11:21:54,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:21:54,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:21:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:55,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:21:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:55,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:21:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:55,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:21:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:55,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:21:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:55,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:21:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-20 11:21:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:21:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 11:21:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:21:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 11:21:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:21:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 11:21:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 11:21:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:21:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-20 11:21:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:21:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 11:21:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-20 11:21:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-20 11:21:56,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:21:56,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862279993] [2022-11-20 11:21:56,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862279993] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:21:56,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854946181] [2022-11-20 11:21:56,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:21:56,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:21:56,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:21:56,192 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:21:56,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:21:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:21:57,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 3622 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:21:57,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:21:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 11:21:57,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:21:57,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854946181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:21:57,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:21:57,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-20 11:21:57,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227598911] [2022-11-20 11:21:57,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:21:57,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:21:57,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:21:57,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:21:57,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:21:57,899 INFO L87 Difference]: Start difference. First operand 7960 states and 11111 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:21:59,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:21:59,083 INFO L93 Difference]: Finished difference Result 17026 states and 23924 transitions. [2022-11-20 11:21:59,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:21:59,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2022-11-20 11:21:59,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:21:59,125 INFO L225 Difference]: With dead ends: 17026 [2022-11-20 11:21:59,125 INFO L226 Difference]: Without dead ends: 9088 [2022-11-20 11:21:59,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:21:59,155 INFO L413 NwaCegarLoop]: 1224 mSDtfsCounter, 134 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:21:59,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 2365 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:21:59,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9088 states. [2022-11-20 11:22:00,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9088 to 8136. [2022-11-20 11:22:00,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8136 states, 5922 states have (on average 1.304626815265113) internal successors, (7726), 6064 states have internal predecessors, (7726), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 551 states have return successors, (1979), 1747 states have call predecessors, (1979), 1659 states have call successors, (1979) [2022-11-20 11:22:00,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8136 states to 8136 states and 11367 transitions. [2022-11-20 11:22:00,256 INFO L78 Accepts]: Start accepts. Automaton has 8136 states and 11367 transitions. Word has length 171 [2022-11-20 11:22:00,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:22:00,257 INFO L495 AbstractCegarLoop]: Abstraction has 8136 states and 11367 transitions. [2022-11-20 11:22:00,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:22:00,257 INFO L276 IsEmpty]: Start isEmpty. Operand 8136 states and 11367 transitions. [2022-11-20 11:22:00,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-20 11:22:00,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:22:00,266 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-11-20 11:22:00,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:22:00,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:22:00,483 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:22:00,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:22:00,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1301657950, now seen corresponding path program 1 times [2022-11-20 11:22:00,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:22:00,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433384722] [2022-11-20 11:22:00,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:00,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:22:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:01,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:01,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:22:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:01,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:22:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:01,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:22:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:22:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-20 11:22:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-20 11:22:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 11:22:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 11:22:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 11:22:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 11:22:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 11:22:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-20 11:22:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:22:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 11:22:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-20 11:22:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:02,224 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-20 11:22:02,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:22:02,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433384722] [2022-11-20 11:22:02,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433384722] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:22:02,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888118682] [2022-11-20 11:22:02,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:02,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:22:02,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:22:02,227 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:22:02,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:22:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:03,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 3686 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 11:22:03,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:22:04,367 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-20 11:22:04,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:22:04,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888118682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:22:04,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:22:04,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-20 11:22:04,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602968192] [2022-11-20 11:22:04,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:22:04,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:22:04,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:22:04,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:22:04,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:22:04,373 INFO L87 Difference]: Start difference. First operand 8136 states and 11367 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:22:06,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:22:08,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:22:10,468 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 [] [2022-11-20 11:22:13,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:22:13,677 INFO L93 Difference]: Finished difference Result 16280 states and 23060 transitions. [2022-11-20 11:22:13,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:22:13,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2022-11-20 11:22:13,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:22:13,721 INFO L225 Difference]: With dead ends: 16280 [2022-11-20 11:22:13,722 INFO L226 Difference]: Without dead ends: 8150 [2022-11-20 11:22:13,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:22:13,756 INFO L413 NwaCegarLoop]: 1462 mSDtfsCounter, 1107 mSDsluCounter, 3410 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 4872 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:22:13,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 4872 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1162 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-11-20 11:22:13,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8150 states. [2022-11-20 11:22:14,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8150 to 8144. [2022-11-20 11:22:14,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8144 states, 5926 states have (on average 1.304421194735066) internal successors, (7730), 6072 states have internal predecessors, (7730), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 555 states have return successors, (2007), 1747 states have call predecessors, (2007), 1659 states have call successors, (2007) [2022-11-20 11:22:14,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8144 states to 8144 states and 11399 transitions. [2022-11-20 11:22:14,913 INFO L78 Accepts]: Start accepts. Automaton has 8144 states and 11399 transitions. Word has length 175 [2022-11-20 11:22:14,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:22:14,913 INFO L495 AbstractCegarLoop]: Abstraction has 8144 states and 11399 transitions. [2022-11-20 11:22:14,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:22:14,914 INFO L276 IsEmpty]: Start isEmpty. Operand 8144 states and 11399 transitions. [2022-11-20 11:22:14,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-20 11:22:14,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:22:14,924 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-11-20 11:22:14,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:22:15,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-20 11:22:15,141 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:22:15,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:22:15,141 INFO L85 PathProgramCache]: Analyzing trace with hash 335036230, now seen corresponding path program 1 times [2022-11-20 11:22:15,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:22:15,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781118490] [2022-11-20 11:22:15,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:15,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:22:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:22:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:22:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:22:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:22:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-20 11:22:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 11:22:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:22:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 11:22:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 11:22:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:15,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 11:22:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:16,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 11:22:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:16,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:16,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 11:22:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:16,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:22:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:16,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 11:22:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:16,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-20 11:22:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-20 11:22:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:16,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:16,120 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-20 11:22:16,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:22:16,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781118490] [2022-11-20 11:22:16,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781118490] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:22:16,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947073967] [2022-11-20 11:22:16,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:16,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:22:16,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:22:16,124 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:22:16,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 11:22:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:17,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 3848 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:22:17,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:22:18,305 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 11:22:18,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:22:18,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947073967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:22:18,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:22:18,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2022-11-20 11:22:18,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646326491] [2022-11-20 11:22:18,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:22:18,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:22:18,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:22:18,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:22:18,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:22:18,309 INFO L87 Difference]: Start difference. First operand 8144 states and 11399 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:22:20,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:22:21,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:22:21,566 INFO L93 Difference]: Finished difference Result 9803 states and 13510 transitions. [2022-11-20 11:22:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:22:21,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 197 [2022-11-20 11:22:21,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:22:21,611 INFO L225 Difference]: With dead ends: 9803 [2022-11-20 11:22:21,611 INFO L226 Difference]: Without dead ends: 9781 [2022-11-20 11:22:21,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:22:21,617 INFO L413 NwaCegarLoop]: 1356 mSDtfsCounter, 1229 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:22:21,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 1551 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 11:22:21,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9781 states. [2022-11-20 11:22:22,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 9768. [2022-11-20 11:22:22,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9768 states, 7314 states have (on average 1.2981952420016407) internal successors, (9495), 7464 states have internal predecessors, (9495), 1798 states have call successors, (1798), 524 states have call predecessors, (1798), 655 states have return successors, (2171), 1895 states have call predecessors, (2171), 1795 states have call successors, (2171) [2022-11-20 11:22:22,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9768 states to 9768 states and 13464 transitions. [2022-11-20 11:22:22,890 INFO L78 Accepts]: Start accepts. Automaton has 9768 states and 13464 transitions. Word has length 197 [2022-11-20 11:22:22,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:22:22,891 INFO L495 AbstractCegarLoop]: Abstraction has 9768 states and 13464 transitions. [2022-11-20 11:22:22,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:22:22,891 INFO L276 IsEmpty]: Start isEmpty. Operand 9768 states and 13464 transitions. [2022-11-20 11:22:22,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-20 11:22:22,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:22:22,901 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-11-20 11:22:22,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:22:23,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 11:22:23,115 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:22:23,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:22:23,115 INFO L85 PathProgramCache]: Analyzing trace with hash -944827448, now seen corresponding path program 1 times [2022-11-20 11:22:23,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:22:23,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727386152] [2022-11-20 11:22:23,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:23,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:22:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:22:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:22:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:22:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:22:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-20 11:22:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 11:22:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-20 11:22:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 11:22:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 11:22:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 11:22:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-20 11:22:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-20 11:22:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:22:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 11:22:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-20 11:22:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-20 11:22:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:24,721 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-20 11:22:24,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:22:24,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727386152] [2022-11-20 11:22:24,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727386152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:22:24,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:22:24,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:22:24,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777384075] [2022-11-20 11:22:24,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:22:24,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:22:24,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:22:24,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:22:24,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:22:24,729 INFO L87 Difference]: Start difference. First operand 9768 states and 13464 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:22:26,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:22:28,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:22:30,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:22:32,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:22:41,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:22:41,083 INFO L93 Difference]: Finished difference Result 24072 states and 34607 transitions. [2022-11-20 11:22:41,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:22:41,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 197 [2022-11-20 11:22:41,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:22:41,151 INFO L225 Difference]: With dead ends: 24072 [2022-11-20 11:22:41,151 INFO L226 Difference]: Without dead ends: 14323 [2022-11-20 11:22:41,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:22:41,184 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 1587 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 2697 mSolverCounterSat, 1121 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 3994 SdHoareTripleChecker+Invalid, 3822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1121 IncrementalHoareTripleChecker+Valid, 2697 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:22:41,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 3994 Invalid, 3822 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1121 Valid, 2697 Invalid, 4 Unknown, 0 Unchecked, 13.7s Time] [2022-11-20 11:22:41,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14323 states. [2022-11-20 11:22:42,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14323 to 9769. [2022-11-20 11:22:42,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9769 states, 7315 states have (on average 1.2981544771018456) internal successors, (9496), 7465 states have internal predecessors, (9496), 1798 states have call successors, (1798), 524 states have call predecessors, (1798), 655 states have return successors, (2171), 1895 states have call predecessors, (2171), 1795 states have call successors, (2171) [2022-11-20 11:22:42,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9769 states to 9769 states and 13465 transitions. [2022-11-20 11:22:42,744 INFO L78 Accepts]: Start accepts. Automaton has 9769 states and 13465 transitions. Word has length 197 [2022-11-20 11:22:42,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:22:42,745 INFO L495 AbstractCegarLoop]: Abstraction has 9769 states and 13465 transitions. [2022-11-20 11:22:42,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:22:42,745 INFO L276 IsEmpty]: Start isEmpty. Operand 9769 states and 13465 transitions. [2022-11-20 11:22:42,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-20 11:22:42,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:22:42,751 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:22:42,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:22:42,751 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:22:42,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:22:42,752 INFO L85 PathProgramCache]: Analyzing trace with hash 49572453, now seen corresponding path program 1 times [2022-11-20 11:22:42,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:22:42,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675430576] [2022-11-20 11:22:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:42,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:22:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:43,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:43,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:22:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 11:22:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 11:22:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:22:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 11:22:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 11:22:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 11:22:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 11:22:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-20 11:22:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 11:22:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 11:22:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 11:22:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:22:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 11:22:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-20 11:22:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-20 11:22:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:22:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:44,415 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-20 11:22:44,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:22:44,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675430576] [2022-11-20 11:22:44,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675430576] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:22:44,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305896050] [2022-11-20 11:22:44,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:22:44,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:22:44,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:22:44,418 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:22:44,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 11:22:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:22:47,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 3858 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:22:47,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:22:47,739 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-20 11:22:47,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:22:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-20 11:22:48,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305896050] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:22:48,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:22:48,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2022-11-20 11:22:48,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536707685] [2022-11-20 11:22:48,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:22:48,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 11:22:48,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:22:48,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 11:22:48,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:22:48,073 INFO L87 Difference]: Start difference. First operand 9769 states and 13465 transitions. Second operand has 14 states, 14 states have (on average 11.5) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (44), 6 states have call predecessors, (44), 5 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 11:22:50,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:22:52,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:22:54,194 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 [] [2022-11-20 11:23:04,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:23:04,857 INFO L93 Difference]: Finished difference Result 24077 states and 34614 transitions. [2022-11-20 11:23:04,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:23:04,858 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (44), 6 states have call predecessors, (44), 5 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 198 [2022-11-20 11:23:04,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:23:04,904 INFO L225 Difference]: With dead ends: 24077 [2022-11-20 11:23:04,904 INFO L226 Difference]: Without dead ends: 14326 [2022-11-20 11:23:04,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 432 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-11-20 11:23:04,926 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 1865 mSDsluCounter, 4226 mSDsCounter, 0 mSdLazyCounter, 3420 mSolverCounterSat, 1433 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 5002 SdHoareTripleChecker+Invalid, 4856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1433 IncrementalHoareTripleChecker+Valid, 3420 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:23:04,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 5002 Invalid, 4856 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1433 Valid, 3420 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2022-11-20 11:23:04,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14326 states. [2022-11-20 11:23:06,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14326 to 9772. [2022-11-20 11:23:06,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9772 states, 7318 states have (on average 1.2980322492484286) internal successors, (9499), 7468 states have internal predecessors, (9499), 1798 states have call successors, (1798), 524 states have call predecessors, (1798), 655 states have return successors, (2171), 1895 states have call predecessors, (2171), 1795 states have call successors, (2171) [2022-11-20 11:23:06,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9772 states to 9772 states and 13468 transitions. [2022-11-20 11:23:06,222 INFO L78 Accepts]: Start accepts. Automaton has 9772 states and 13468 transitions. Word has length 198 [2022-11-20 11:23:06,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:23:06,222 INFO L495 AbstractCegarLoop]: Abstraction has 9772 states and 13468 transitions. [2022-11-20 11:23:06,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (44), 6 states have call predecessors, (44), 5 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 11:23:06,222 INFO L276 IsEmpty]: Start isEmpty. Operand 9772 states and 13468 transitions. [2022-11-20 11:23:06,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-20 11:23:06,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:06,228 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-11-20 11:23:06,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-20 11:23:06,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:23:06,431 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:06,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:06,431 INFO L85 PathProgramCache]: Analyzing trace with hash 429806344, now seen corresponding path program 2 times [2022-11-20 11:23:06,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:23:06,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686822840] [2022-11-20 11:23:06,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:23:06,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:23:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:23:12,229 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:23:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:23:14,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:23:14,105 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:23:14,106 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:23:14,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:23:14,114 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:23:14,120 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:23:14,188 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-20 11:23:14,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:23:14 BoogieIcfgContainer [2022-11-20 11:23:14,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:23:14,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:23:14,573 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:23:14,573 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:23:14,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:33" (3/4) ... [2022-11-20 11:23:14,577 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:23:14,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:23:14,578 INFO L158 Benchmark]: Toolchain (without parser) took 316528.09ms. Allocated memory was 157.3MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 101.6MB in the beginning and 856.0MB in the end (delta: -754.4MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-11-20 11:23:14,579 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 157.3MB. Free memory was 126.3MB in the beginning and 126.2MB in the end (delta: 76.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:23:14,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3212.24ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 101.6MB in the beginning and 113.8MB in the end (delta: -12.2MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2022-11-20 11:23:14,588 INFO L158 Benchmark]: Boogie Procedure Inliner took 238.32ms. Allocated memory is still 209.7MB. Free memory was 113.8MB in the beginning and 94.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:23:14,588 INFO L158 Benchmark]: Boogie Preprocessor took 361.43ms. Allocated memory is still 209.7MB. Free memory was 94.9MB in the beginning and 126.2MB in the end (delta: -31.3MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2022-11-20 11:23:14,589 INFO L158 Benchmark]: RCFGBuilder took 31419.87ms. Allocated memory was 209.7MB in the beginning and 1.0GB in the end (delta: 792.7MB). Free memory was 126.2MB in the beginning and 842.6MB in the end (delta: -716.5MB). Peak memory consumption was 608.9MB. Max. memory is 16.1GB. [2022-11-20 11:23:14,590 INFO L158 Benchmark]: TraceAbstraction took 281281.98ms. Allocated memory was 1.0GB in the beginning and 2.1GB in the end (delta: 1.1GB). Free memory was 841.6MB in the beginning and 856.0MB in the end (delta: -14.5MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-11-20 11:23:14,592 INFO L158 Benchmark]: Witness Printer took 5.38ms. Allocated memory is still 2.1GB. Free memory is still 856.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:23:14,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 157.3MB. Free memory was 126.3MB in the beginning and 126.2MB in the end (delta: 76.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3212.24ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 101.6MB in the beginning and 113.8MB in the end (delta: -12.2MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 238.32ms. Allocated memory is still 209.7MB. Free memory was 113.8MB in the beginning and 94.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 361.43ms. Allocated memory is still 209.7MB. Free memory was 94.9MB in the beginning and 126.2MB in the end (delta: -31.3MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * RCFGBuilder took 31419.87ms. Allocated memory was 209.7MB in the beginning and 1.0GB in the end (delta: 792.7MB). Free memory was 126.2MB in the beginning and 842.6MB in the end (delta: -716.5MB). Peak memory consumption was 608.9MB. Max. memory is 16.1GB. * TraceAbstraction took 281281.98ms. Allocated memory was 1.0GB in the beginning and 2.1GB in the end (delta: 1.1GB). Free memory was 841.6MB in the beginning and 856.0MB in the end (delta: -14.5MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 5.38ms. Allocated memory is still 2.1GB. Free memory is still 856.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6294]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6616. Possible FailurePath: [L6317] struct usb_interface *p54u_driver_group1 ; [L6318] int LDV_IN_INTERRUPT = 1; [L6319] int ref_cnt ; [L6320] int ldv_state_variable_1 ; [L6321] int usb_counter ; [L6322] int ldv_state_variable_0 ; [L6425-L6614] static struct usb_device_id p54u_table[64U] = { {3U, 1041U, 80U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1118U, 194U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1286U, 2577U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1653U, 1328U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1721U, 288U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1799U, 60934U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1962U, 28U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 17665U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 17666U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 21761U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2118U, 16896U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2118U, 16912U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2118U, 16928U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2474U, 4096U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3064U, 4103U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3294U, 6U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3504U, 26662U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4219U, 22002U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4682U, 16419U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5173U, 528U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5545U, 2U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5680U, 5U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6189U, 2411U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6421U, 8756U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6421U, 8757U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14081U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14083U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14178U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 20545U, 8756U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 20545U, 8757U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1137U, 4656U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1293U, 28752U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1394U, 8192U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1394U, 8194U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1705U, 14U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1721U, 289U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1799U, 60947U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2051U, 17168U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 17697U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 17713U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 50433U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 62723U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2118U, 16960U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2325U, 8192U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2325U, 8194U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2991U, 280U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3064U, 4105U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3294U, 8U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3294U, 21U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3470U, 14178U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4682U, 16421U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4704U, 60962U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5041U, 10U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5041U, 12U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5139U, 21504U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5173U, 1063U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5736U, 4176U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5952U, 4096U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14084U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14085U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 21779U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33026U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33028U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L6615] struct usb_device_id const __mod_usb_device_table ; [L6616-L6619] static struct __anonstruct_p54u_fwlist_297 const p54u_fwlist[3U] = { {1280129078U, 1, "isl3886usb", {'I', 'S', 'L', '3', '8', '8', '6', ' ', '+', ' ', 'n', 'e', 't', '2', '2', '8', '0', '\000'}}, {1280129079U, 2, "isl3887usb", {'I', 'S', 'L', '3', '8', '8', '7', '\000'}}}; [L7035-L7036] static char const p54u_romboot_3887[5U] = { '~', '~', '~', '~', '\000'}; [L7061] static char const p54u_firmware_upload_3887[3U] = { '<', '\r', '\000'}; [L8068-L8074] static struct usb_driver p54u_driver = {"p54usb", & p54u_probe, & p54u_disconnect, 0, & p54u_suspend, & p54u_resume, & p54u_resume, & p54u_pre_reset, & p54u_post_reset, (struct usb_device_id const *)(& p54u_table), {{{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, (unsigned char)0, (unsigned char)0, 1U, 1U}; [L8090] int ldv_retval_0 ; [L8091] int ldv_retval_4 ; [L8092] int ldv_retval_1 ; [L8095] int ldv_retval_3 ; [L8096] int ldv_retval_2 ; [L8436] int INTERF_STATE = 0; [L8437] int SERIAL_STATE = 0; [L8438] void *usb_intfdata = 0; [L8439] struct urb *usb_urb = 0; [L8440] struct usb_device *usb_dev = 0; [L8441] int dev_counter = 0; [L8442] int completeFnIntCounter = 0; [L8443] int completeFnBulkCounter = 0; [L8444] void (*completeFnInt)(struct urb * ) ; [L8445] void (*completeFnBulk)(struct urb * ) ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8108] struct usb_device_id *ldvarg1 ; [L8109] void *tmp ; [L8110] pm_message_t ldvarg0 ; [L8111] int tmp___0 ; [L8112] int tmp___1 ; [L8113] int tmp___2 ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldvarg0={193:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8115] CALL, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6259] void *p ; [L6260] void *tmp ; [L6261] int tmp___0 ; [L6263] tmp___0 = __VERIFIER_nondet_int() [L6264] COND TRUE tmp___0 != 0 [L6265] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=32, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=32, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8115] RET, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_zalloc(32UL)={0:0}, ldvarg0={193:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8115] tmp = ldv_zalloc(32UL) [L8116] ldvarg1 = (struct usb_device_id *)tmp [L8117] FCALL ldv_initialize() [L8118] FCALL memset((void *)(& ldvarg0), 0, 4UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldvarg0={193:0}, ldvarg1={0:0}, memset((void *)(& ldvarg0), 0, 4UL)={193:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8119] ldv_state_variable_1 = 0 [L8120] ref_cnt = 0 [L8121] ldv_state_variable_0 = 1 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldvarg0={193:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8123] tmp___0 = __VERIFIER_nondet_int() [L8125] case 0: [L8191] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldvarg0={193:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8192] COND TRUE ldv_state_variable_0 != 0 [L8193] tmp___2 = __VERIFIER_nondet_int() [L8195] case 0: [L8203] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldvarg0={193:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8204] COND TRUE ldv_state_variable_0 == 1 [L8205] CALL, EXPR p54u_driver_init() [L8077] int tmp ; [L8079] CALL, EXPR ldv_usb_register_driver_30(& p54u_driver, & __this_module, "p54usb") [L8408] ldv_func_ret_type ldv_func_res ; [L8409] int tmp ; [L8411] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8821] return __VERIFIER_nondet_int(); [L8411] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8411] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8412] ldv_func_res = tmp [L8413] ldv_state_variable_1 = 1 [L8414] usb_counter = 0 [L8415] CALL ldv_usb_driver_1() [L8099] void *tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8101] CALL, EXPR ldv_zalloc(1520UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6259] void *p ; [L6260] void *tmp ; [L6261] int tmp___0 ; [L6263] tmp___0 = __VERIFIER_nondet_int() [L6264] COND TRUE tmp___0 != 0 [L6265] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=1520, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1520, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8101] RET, EXPR ldv_zalloc(1520UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_zalloc(1520UL)={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8101] tmp = ldv_zalloc(1520UL) [L8102] p54u_driver_group1 = (struct usb_interface *)tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8415] RET ldv_usb_driver_1() [L8416] return (ldv_func_res); VAL [={0:0}, ={0:0}, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={35:0}, ldv_func_arg1={35:0}, ldv_func_arg2={4294967380:4294967301}, ldv_func_arg2={4294967380:4294967301}, ldv_func_arg3={30:0}, ldv_func_arg3={30:0}, ldv_func_res=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8079] RET, EXPR ldv_usb_register_driver_30(& p54u_driver, & __this_module, "p54usb") [L8079] tmp = ldv_usb_register_driver_30(& p54u_driver, & __this_module, "p54usb") [L8080] return (tmp); VAL [={0:0}, ={0:0}, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8205] RET, EXPR p54u_driver_init() [L8205] ldv_retval_4 = p54u_driver_init() [L8206] COND TRUE ldv_retval_4 == 0 [L8207] ldv_state_variable_0 = 3 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={193:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8210] COND FALSE !(ldv_retval_4 != 0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={193:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8123] tmp___0 = __VERIFIER_nondet_int() [L8125] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={193:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=0, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8126] COND TRUE ldv_state_variable_1 != 0 [L8127] tmp___1 = __VERIFIER_nondet_int() [L8129] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={193:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=0, tmp___1=0, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8130] COND TRUE ldv_state_variable_1 == 1 [L8131] CALL, EXPR p54u_probe(p54u_driver_group1, (struct usb_device_id const *)ldvarg1) [L7898] struct usb_device *udev ; [L7899] struct usb_device *tmp ; [L7900] struct ieee80211_hw *dev ; [L7901] struct p54u_priv *priv ; [L7902] int err ; [L7903] unsigned int i ; [L7904] unsigned int recognized_pipes ; [L7905] unsigned int tmp___0 ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7907] CALL, EXPR interface_to_usbdev(intf) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8237] struct usb_device *tmp ; [L8239] CALL, EXPR ldv_interface_to_usbdev() [L8549] void *result ; [L8550] void *tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8552] CALL, EXPR ldv_malloc(sizeof(struct usb_device)) VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6242] void *p ; [L6243] void *tmp ; [L6244] int tmp___0 ; [L6246] tmp___0 = __VERIFIER_nondet_int() [L6247] COND FALSE !(tmp___0 != 0) [L6250] tmp = malloc(size) [L6251] p = tmp VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={49:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={49:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6252] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6238] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, \old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6252] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={49:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={49:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6253] return (p); VAL [={0:0}, ={0:0}, \old(size)=1889, \result={49:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={49:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={49:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8552] RET, EXPR ldv_malloc(sizeof(struct usb_device)) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct usb_device))={49:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8552] tmp = ldv_malloc(sizeof(struct usb_device)) [L8553] result = tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, result={49:0}, SERIAL_STATE=0, tmp={49:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8554] COND TRUE (unsigned long )result != (unsigned long )((void *)0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, result={49:0}, SERIAL_STATE=0, tmp={49:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8558] return (result); VAL [={0:0}, ={0:0}, \result={49:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, result={49:0}, SERIAL_STATE=0, tmp={49:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8239] RET, EXPR ldv_interface_to_usbdev() [L8239] tmp = ldv_interface_to_usbdev() [L8240] return (tmp); VAL [={0:0}, ={0:0}, \result={49:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={49:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7907] RET, EXPR interface_to_usbdev(intf) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, id={0:0}, id={0:0}, INTERF_STATE=0, interface_to_usbdev(intf)={49:0}, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7907] tmp = interface_to_usbdev(intf) [L7908] udev = tmp [L7909] CALL, EXPR p54_init_common(4592UL) [L8747] CALL, EXPR ldv_malloc(sizeof(struct ieee80211_hw)) VAL [={0:0}, ={0:0}, \old(size)=122, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6242] void *p ; [L6243] void *tmp ; [L6244] int tmp___0 ; [L6246] tmp___0 = __VERIFIER_nondet_int() [L6247] COND FALSE !(tmp___0 != 0) [L6250] tmp = malloc(size) [L6251] p = tmp VAL [={0:0}, ={0:0}, \old(size)=122, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-36893488147419103231:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=122, tmp={-36893488147419103231:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6252] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6238] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, \old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6252] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(size)=122, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-36893488147419103231:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=122, tmp={-36893488147419103231:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6253] return (p); VAL [={0:0}, ={0:0}, \old(size)=122, \result={-36893488147419103231:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-36893488147419103231:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=122, tmp={-36893488147419103231:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8747] RET, EXPR ldv_malloc(sizeof(struct ieee80211_hw)) VAL [={0:0}, ={0:0}, \old(arg0)=4592, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, arg0=4592, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct ieee80211_hw))={-36893488147419103231:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8747] return ldv_malloc(sizeof(struct ieee80211_hw)); [L7909] RET, EXPR p54_init_common(4592UL) [L7909] dev = p54_init_common(4592UL) [L7910] COND FALSE !((unsigned long )dev == (unsigned long )((struct ieee80211_hw *)0)) [L7915] EXPR dev->priv [L7915] priv = (struct p54u_priv *)dev->priv [L7916] priv->hw_type = 0 [L7917] CALL SET_IEEE80211_DEV(dev, & intf->dev) [L6412] EXPR hw->wiphy [L6412] CALL set_wiphy_dev(hw->wiphy, dev) [L6405] wiphy->dev.parent = dev VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:44}, dev={0:44}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}, wiphy={32:-222}, wiphy={32:-222}] [L6412] RET set_wiphy_dev(hw->wiphy, dev) [L7917] RET SET_IEEE80211_DEV(dev, & intf->dev) [L7918] CALL ldv_usb_set_intfdata_23(intf, (void *)dev) [L8386] CALL ldv_usb_set_intfdata(data) [L8455] usb_intfdata = data VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-36893488147419103231:0}, data={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8386] RET ldv_usb_set_intfdata(data) [L7918] RET ldv_usb_set_intfdata_23(intf, (void *)dev) [L7919] priv->udev = udev [L7920] priv->intf = intf [L7921] CALL skb_queue_head_init(& priv->rx_queue) [L6348] struct lock_class_key __key ; VAL [={0:0}, ={0:0}, __key={153:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, list={-36893488147419103231:134}, list={-36893488147419103231:134}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6350] CALL spinlock_check(& list->lock) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, lock={-36893488147419103231:154}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6098] return (& lock->ldv_7686.rlock); VAL [={0:0}, ={0:0}, \result={-36893488147419103231:154}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, lock={-36893488147419103231:154}, lock={-36893488147419103231:154}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6350] RET spinlock_check(& list->lock) VAL [={0:0}, ={0:0}, __key={153:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, list={-36893488147419103231:134}, list={-36893488147419103231:134}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, spinlock_check(& list->lock)={-36893488147419103231:154}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6351] FCALL __raw_spin_lock_init(& list->lock.ldv_7686.rlock, "&(&list->lock)->rlock", & __key) VAL [={0:0}, ={0:0}, __key={153:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, list={-36893488147419103231:134}, list={-36893488147419103231:134}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6352] CALL __skb_queue_head_init(list) [L6337] struct sk_buff *tmp ; [L6339] tmp = (struct sk_buff *)list [L6340] list->next = tmp [L6341] list->prev = tmp [L6342] list->qlen = 0U VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, list={-36893488147419103231:134}, list={-36893488147419103231:134}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-36893488147419103231:134}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6352] RET __skb_queue_head_init(list) [L6353] return; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, list={-36893488147419103231:134}, list={-36893488147419103231:134}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7921] RET skb_queue_head_init(& priv->rx_queue) [L7922] CALL init_usb_anchor(& priv->submitted) [L6155] struct lock_class_key __key ; [L6156] struct lock_class_key __key___0 ; [L6158] CALL INIT_LIST_HEAD(& anchor->urb_list) [L6089] list->next = list [L6090] list->prev = list VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, list={-36893488147419103231:222}, list={-36893488147419103231:222}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6158] RET INIT_LIST_HEAD(& anchor->urb_list) [L6159] FCALL __init_waitqueue_head(& anchor->wait, "&anchor->wait", & __key) VAL [={0:0}, ={0:0}, __key={155:0}, __key___0={157:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, anchor={-36893488147419103231:222}, anchor={-36893488147419103231:222}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6160] CALL spinlock_check(& anchor->lock) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, lock={-36893488147419103231:322}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6098] return (& lock->ldv_7686.rlock); VAL [={0:0}, ={0:0}, \result={-36893488147419103231:322}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, lock={-36893488147419103231:322}, lock={-36893488147419103231:322}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6160] RET spinlock_check(& anchor->lock) VAL [={0:0}, ={0:0}, __key={155:0}, __key___0={157:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, anchor={-36893488147419103231:222}, anchor={-36893488147419103231:222}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, spinlock_check(& anchor->lock)={-36893488147419103231:322}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6161] FCALL __raw_spin_lock_init(& anchor->lock.ldv_7686.rlock, "&(&anchor->lock)->rlock", & __key___0) VAL [={0:0}, ={0:0}, __key={155:0}, __key___0={157:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, anchor={-36893488147419103231:222}, anchor={-36893488147419103231:222}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6162] return; [L6162] return; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, anchor={-36893488147419103231:222}, anchor={-36893488147419103231:222}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7922] RET init_usb_anchor(& priv->submitted) [L7923] CALL ldv_usb_get_dev_24(udev) [L8392] struct usb_device *tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={49:0}, ldv_func_arg1={49:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8394] CALL, EXPR ldv_get_dev(ldv_func_arg1) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={49:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8563] int tmp ; VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={49:0}, data={49:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8565] COND TRUE (unsigned long )usb_dev == (unsigned long )((struct usb_device *)0) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={49:0}, data={49:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8566] CALL, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6276] int tmp ; [L6278] tmp = __VERIFIER_nondet_int() [L6279] return (tmp); VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8566] RET, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={49:0}, data={49:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_undef_int()=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8566] tmp = ldv_undef_int() [L8567] COND FALSE !(\read(tmp)) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={49:0}, data={49:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8577] return (usb_dev); VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={49:0}, data={49:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8394] RET, EXPR ldv_get_dev(ldv_func_arg1) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={49:0}, ldv_func_arg1={49:0}, ldv_get_dev(ldv_func_arg1)={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8394] tmp = ldv_get_dev(ldv_func_arg1) [L8395] return (tmp); VAL [={0:0}, ={0:0}, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={49:0}, ldv_func_arg1={49:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7923] RET ldv_usb_get_dev_24(udev) [L7924] EXPR intf->altsetting [L7924] EXPR (intf->altsetting)->desc.bNumEndpoints [L7924] i = (unsigned int )(intf->altsetting)->desc.bNumEndpoints [L7925] recognized_pipes = 0U VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev_counter=0, i=0, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={-36893488147419103231:-3758}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={49:0}, udev={49:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7941] tmp___0 = i [L7942] i = i - 1U VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev_counter=0, i=4294967295, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={-36893488147419103231:-3758}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={49:0}, tmp___0=0, udev={49:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7943] COND FALSE !(tmp___0 != 0U) [L7947] priv->common.open = & p54u_open [L7948] priv->common.stop = & p54u_stop VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev_counter=0, i=4294967295, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={-36893488147419103231:-3758}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={49:0}, tmp___0=0, udev={49:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7949] COND TRUE recognized_pipes <= 8U [L7950] udev->reset_resume = 1U [L7951] CALL, EXPR p54u_device_reset(dev) [L7006] struct p54u_priv *priv ; [L7007] int ret ; [L7008] int lock ; [L7010] EXPR dev->priv [L7010] priv = (struct p54u_priv *)dev->priv [L7011] EXPR priv->intf [L7011] EXPR (priv->intf)->condition [L7011] lock = (unsigned int )(priv->intf)->condition != 1U [L7012] COND TRUE lock != 0 [L7013] EXPR priv->udev [L7013] EXPR priv->intf [L7013] CALL, EXPR usb_lock_device_for_reset(priv->udev, (struct usb_interface const *)priv->intf) [L8817] return __VERIFIER_nondet_int(); [L7013] RET, EXPR usb_lock_device_for_reset(priv->udev, (struct usb_interface const *)priv->intf) [L7013] ret = usb_lock_device_for_reset(priv->udev, (struct usb_interface const *)priv->intf) [L7014] COND TRUE ret < 0 [L7015] priv->udev [L7017] return (ret); VAL [={0:0}, ={0:0}, \result=-1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, lock=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={4294967312:-3}, ref_cnt=0, ret=-1, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7951] RET, EXPR p54u_device_reset(dev) [L7951] err = p54u_device_reset(dev) [L7952] priv->hw_type = 2 [L7953] EXPR dev->extra_tx_headroom [L7953] dev->extra_tx_headroom = dev->extra_tx_headroom + 8U [L7954] priv->common.tx_hdr_len = 8U [L7955] priv->common.tx = & p54u_tx_lm87 [L7956] priv->upload_fw = & p54u_upload_firmware_3887 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev_counter=0, err=-1, i=4294967295, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={-36893488147419103231:-3758}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={49:0}, tmp___0=0, udev={49:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7964] CALL, EXPR p54u_load_firmware(dev, intf) [L7866] struct usb_device *udev ; [L7867] struct usb_device *tmp ; [L7868] struct p54u_priv *priv ; [L7869] struct device *device ; [L7870] int err ; [L7871] int i ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7873] CALL, EXPR interface_to_usbdev(intf) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8237] struct usb_device *tmp ; [L8239] CALL, EXPR ldv_interface_to_usbdev() [L8549] void *result ; [L8550] void *tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8552] CALL, EXPR ldv_malloc(sizeof(struct usb_device)) VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6242] void *p ; [L6243] void *tmp ; [L6244] int tmp___0 ; [L6246] tmp___0 = __VERIFIER_nondet_int() [L6247] COND FALSE !(tmp___0 != 0) [L6250] tmp = malloc(size) [L6251] p = tmp VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-18446744073709551615:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6252] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6238] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, \old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6252] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-18446744073709551615:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6253] return (p); VAL [={0:0}, ={0:0}, \old(size)=1889, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-18446744073709551615:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8552] RET, EXPR ldv_malloc(sizeof(struct usb_device)) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct usb_device))={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8552] tmp = ldv_malloc(sizeof(struct usb_device)) [L8553] result = tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, result={-18446744073709551615:0}, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8554] COND TRUE (unsigned long )result != (unsigned long )((void *)0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, result={-18446744073709551615:0}, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8558] return (result); VAL [={0:0}, ={0:0}, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, result={-18446744073709551615:0}, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8239] RET, EXPR ldv_interface_to_usbdev() [L8239] tmp = ldv_interface_to_usbdev() [L8240] return (tmp); VAL [={0:0}, ={0:0}, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7873] RET, EXPR interface_to_usbdev(intf) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=0, interface_to_usbdev(intf)={-18446744073709551615:0}, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7873] tmp = interface_to_usbdev(intf) [L7874] udev = tmp [L7875] EXPR dev->priv [L7875] priv = (struct p54u_priv *)dev->priv [L7876] device = & udev->dev [L7877] CALL init_completion(& priv->fw_wait_load) [L6106] struct lock_class_key __key ; [L6108] x->done = 0U VAL [={0:0}, ={0:0}, __key={151:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}, x={4294967336:345}, x={4294967336:345}] [L6109] FCALL __init_waitqueue_head(& x->wait, "&x->wait", & __key) VAL [={0:0}, ={0:0}, __key={151:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}, x={4294967336:345}, x={4294967336:345}] [L6110] return; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}, x={4294967336:345}, x={4294967336:345}] [L7877] RET init_completion(& priv->fw_wait_load) [L7878] CALL, EXPR p54_find_type(priv) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={4294967336:-3812}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7753] int i ; [L7755] i = 0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, i=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={4294967336:-3812}, priv={4294967336:-3812}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7764] COND TRUE i <= 2 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, i=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={4294967336:-3812}, priv={4294967336:-3812}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7758] EXPR p54u_fwlist[i].type [L7758] EXPR priv->hw_type VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, i=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_fwlist[i].type=1, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={4294967336:-3812}, priv={4294967336:-3812}, priv->hw_type=4294967297, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7758] COND TRUE (unsigned int )p54u_fwlist[i].type == (unsigned int )priv->hw_type [L7769] COND FALSE !(i == 3) [L7773] return (i); VAL [={0:0}, ={0:0}, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, i=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={4294967336:-3812}, priv={4294967336:-3812}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7878] RET, EXPR p54_find_type(priv) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev={-36893488147419103231:0}, dev_counter=0, device={-18446744073709551615:131}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54_find_type(priv)=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={4294967336:-3812}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551615:0}, udev={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7878] i = p54_find_type(priv) [L7879] COND FALSE !(i < 0) [L7883] priv->udev [L7884] p54u_fwlist[i].fw [L7885] CALL ldv_usb_get_dev_22(udev) [L8377] struct usb_device *tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg1={-18446744073709551615:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8379] CALL, EXPR ldv_get_dev(ldv_func_arg1) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8563] int tmp ; VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8565] COND TRUE (unsigned long )usb_dev == (unsigned long )((struct usb_device *)0) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8566] CALL, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6276] int tmp ; [L6278] tmp = __VERIFIER_nondet_int() [L6279] return (tmp); VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, \result=47, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=47, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8566] RET, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_undef_int()=47, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8566] tmp = ldv_undef_int() [L8567] COND TRUE \read(tmp) [L8568] dev_counter = dev_counter + 1 [L8569] usb_dev = data VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=47, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8577] return (usb_dev); VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=47, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8379] RET, EXPR ldv_get_dev(ldv_func_arg1) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg1={-18446744073709551615:0}, ldv_get_dev(ldv_func_arg1)={-18446744073709551615:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8379] tmp = ldv_get_dev(ldv_func_arg1) [L8380] return (tmp); VAL [={0:0}, ={0:0}, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg1={-18446744073709551615:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7885] RET ldv_usb_get_dev_22(udev) [L7886] EXPR p54u_fwlist[i].fw [L7886-L7887] CALL, EXPR request_firmware_nowait(& __this_module, 1, p54u_fwlist[i].fw, device, 208U, (void *)priv, & p54u_load_firmware_cb) [L8773] return __VERIFIER_nondet_int(); [L7886-L7887] RET, EXPR request_firmware_nowait(& __this_module, 1, p54u_fwlist[i].fw, device, 208U, (void *)priv, & p54u_load_firmware_cb) [L7886-L7887] err = request_firmware_nowait(& __this_module, 1, p54u_fwlist[i].fw, device, 208U, (void *)priv, & p54u_load_firmware_cb) [L7888] COND TRUE err != 0 [L7889] priv->udev [L7890] p54u_fwlist[i].fw [L7893] return (err); VAL [={0:0}, ={0:0}, \result=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev={-36893488147419103231:0}, dev_counter=1, device={-18446744073709551615:131}, err=1, i=0, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={4294967336:-3812}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551615:0}, udev={-18446744073709551615:0}, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7964] RET, EXPR p54u_load_firmware(dev, intf) [L7964] err = p54u_load_firmware(dev, intf) [L7965] return (err); VAL [={0:0}, ={0:0}, \result=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev_counter=1, err=1, i=4294967295, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={-36893488147419103231:-3758}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={49:0}, tmp___0=0, udev={49:0}, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8131] RET, EXPR p54u_probe(p54u_driver_group1, (struct usb_device_id const *)ldvarg1) [L8131] ldv_retval_3 = p54u_probe(p54u_driver_group1, (struct usb_device_id const *)ldvarg1) [L8132] COND FALSE !(ldv_retval_3 == 0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={193:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=0, tmp___1=0, tmp___2=1, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8123] tmp___0 = __VERIFIER_nondet_int() [L8125] case 0: [L8191] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={193:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___1=0, tmp___2=1, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8192] COND TRUE ldv_state_variable_0 != 0 [L8193] tmp___2 = __VERIFIER_nondet_int() [L8195] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={193:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___1=0, tmp___2=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8196] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L8197] CALL p54u_driver_exit() [L8086] CALL ldv_usb_deregister_31(& p54u_driver) [L8422] FCALL usb_deregister(arg) [L8423] ldv_state_variable_1 = 0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, arg={35:0}, arg={35:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8086] RET ldv_usb_deregister_31(& p54u_driver) [L8197] RET p54u_driver_exit() [L8198] ldv_state_variable_0 = 2 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, ldvarg0={193:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___1=0, tmp___2=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8231] CALL ldv_check_final_state() [L8655] COND TRUE (unsigned long )usb_urb == (unsigned long )((struct urb *)0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8659] COND FALSE !((unsigned long )usb_dev == (unsigned long )((struct usb_device *)0)) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8661] CALL ldv_error() VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6294] reach_error() VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4294967380:4294967301}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 56 procedures, 838 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 280.7s, OverallIterations: 21, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 211.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 mSolverCounterUnknown, 32681 SdHoareTripleChecker+Valid, 182.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30832 mSDsluCounter, 80788 SdHoareTripleChecker+Invalid, 172.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59792 mSDsCounter, 14830 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31485 IncrementalHoareTripleChecker+Invalid, 46365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14830 mSolverCounterUnsat, 20996 mSDtfsCounter, 31485 mSolverCounterSat, 0.9s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2438 GetRequests, 2226 SyntacticMatches, 2 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9772occurred in iteration=20, InterpolantAutomatonStates: 175, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 20.3s AutomataMinimizationTime, 20 MinimizatonAttempts, 42129 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.5s SsaConstructionTime, 14.5s SatisfiabilityAnalysisTime, 20.3s InterpolantComputationTime, 4055 NumberOfCodeBlocks, 4055 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 4181 ConstructedInterpolants, 0 QuantifiedInterpolants, 7872 SizeOfPredicates, 19 NumberOfNonLiveVariables, 29385 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 30 InterpolantComputations, 18 PerfectInterpolantSequences, 1164/1221 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 11:23:14,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN --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 a78ad5bb06da9a7367e7c9e45cee20fe00113336b7bc544675fdd46fc445ae5c --- 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-6b4ec56 [2022-11-20 11:23:17,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:23:17,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:23:17,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:23:17,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:23:17,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:23:17,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:23:17,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:23:17,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:23:17,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:23:17,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:23:17,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:23:17,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:23:17,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:23:17,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:23:17,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:23:17,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:23:17,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:23:17,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:23:17,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:23:17,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:23:17,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:23:17,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:23:17,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:23:17,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:23:17,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:23:17,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:23:17,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:23:17,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:23:17,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:23:17,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:23:17,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:23:17,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:23:17,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:23:17,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:23:17,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:23:17,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:23:17,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:23:17,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:23:17,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:23:17,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:23:17,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:23:17,894 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:23:17,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:23:17,897 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:23:17,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:23:17,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:23:17,899 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:23:17,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:23:17,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:23:17,900 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:23:17,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:23:17,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:23:17,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:23:17,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:23:17,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:23:17,904 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:23:17,904 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:23:17,904 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:23:17,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:23:17,905 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:23:17,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:23:17,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:23:17,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:23:17,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:23:17,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:23:17,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:23:17,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:23:17,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:23:17,908 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:23:17,908 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:23:17,908 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:23:17,909 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:23:17,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:23:17,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:23:17,910 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a78ad5bb06da9a7367e7c9e45cee20fe00113336b7bc544675fdd46fc445ae5c [2022-11-20 11:23:18,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:23:18,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:23:18,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:23:18,446 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:23:18,447 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:23:18,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-20 11:23:22,508 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:23:23,285 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:23:23,286 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-20 11:23:23,353 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/data/1e10f5eba/8fee0733d55d4cad91036309201817d6/FLAG190dc30f2 [2022-11-20 11:23:23,444 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/data/1e10f5eba/8fee0733d55d4cad91036309201817d6 [2022-11-20 11:23:23,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:23:23,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:23:23,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:23:23,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:23:23,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:23:23,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:23:23" (1/1) ... [2022-11-20 11:23:23,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df61e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:23, skipping insertion in model container [2022-11-20 11:23:23,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:23:23" (1/1) ... [2022-11-20 11:23:23,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:23:23,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:23:25,033 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_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2022-11-20 11:23:25,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:23:25,926 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:23:26,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:23:26,236 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_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2022-11-20 11:23:26,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:23:26,460 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:23:26,720 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_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2022-11-20 11:23:26,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:23:27,149 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:23:27,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27 WrapperNode [2022-11-20 11:23:27,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:23:27,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:23:27,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:23:27,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:23:27,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27" (1/1) ... [2022-11-20 11:23:27,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27" (1/1) ... [2022-11-20 11:23:27,466 INFO L138 Inliner]: procedures = 198, calls = 1615, calls flagged for inlining = 84, calls inlined = 65, statements flattened = 2825 [2022-11-20 11:23:27,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:23:27,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:23:27,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:23:27,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:23:27,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27" (1/1) ... [2022-11-20 11:23:27,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27" (1/1) ... [2022-11-20 11:23:27,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27" (1/1) ... [2022-11-20 11:23:27,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27" (1/1) ... [2022-11-20 11:23:27,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27" (1/1) ... [2022-11-20 11:23:27,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27" (1/1) ... [2022-11-20 11:23:27,748 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27" (1/1) ... [2022-11-20 11:23:27,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27" (1/1) ... [2022-11-20 11:23:27,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:23:27,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:23:27,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:23:27,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:23:27,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27" (1/1) ... [2022-11-20 11:23:27,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:23:27,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:23:27,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:23:27,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:23:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:23:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:23:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:23:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:23:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:23:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:23:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:23:27,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:23:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-20 11:23:27,914 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-20 11:23:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-20 11:23:27,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-20 11:23:27,915 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2022-11-20 11:23:27,915 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2022-11-20 11:23:27,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:23:27,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:23:27,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-20 11:23:27,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-20 11:23:27,916 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2022-11-20 11:23:27,917 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2022-11-20 11:23:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_skb [2022-11-20 11:23:27,917 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_skb [2022-11-20 11:23:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 11:23:27,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 11:23:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:23:27,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:23:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:23:27,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:23:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-20 11:23:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-20 11:23:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-20 11:23:27,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-20 11:23:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 11:23:27,922 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 11:23:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:23:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 11:23:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:23:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2022-11-20 11:23:27,923 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2022-11-20 11:23:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-11-20 11:23:27,923 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-11-20 11:23:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2022-11-20 11:23:27,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2022-11-20 11:23:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:23:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:23:27,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:23:27,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:23:27,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:23:27,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:23:27,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:23:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:23:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2022-11-20 11:23:27,928 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2022-11-20 11:23:27,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:23:27,929 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 11:23:27,929 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 11:23:27,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-11-20 11:23:27,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-11-20 11:23:27,930 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2022-11-20 11:23:27,931 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2022-11-20 11:23:27,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 11:23:27,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 11:23:27,932 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-20 11:23:27,932 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-20 11:23:27,932 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 11:23:27,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 11:23:27,932 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2022-11-20 11:23:27,933 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2022-11-20 11:23:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_5 [2022-11-20 11:23:27,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_5 [2022-11-20 11:23:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-11-20 11:23:27,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-11-20 11:23:27,934 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-20 11:23:27,934 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-20 11:23:27,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:23:27,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:23:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-20 11:23:27,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-20 11:23:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:23:27,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:23:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:23:27,937 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:23:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-20 11:23:27,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-20 11:23:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-20 11:23:27,938 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-20 11:23:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:23:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2022-11-20 11:23:27,939 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2022-11-20 11:23:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:23:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:23:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:23:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:23:27,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:23:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_rx_cb [2022-11-20 11:23:27,942 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_rx_cb [2022-11-20 11:23:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:23:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2022-11-20 11:23:27,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2022-11-20 11:23:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:23:27,943 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2022-11-20 11:23:27,943 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2022-11-20 11:23:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2022-11-20 11:23:27,944 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2022-11-20 11:23:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:23:27,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:23:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 11:23:27,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 11:23:27,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:23:27,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:23:27,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2022-11-20 11:23:27,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2022-11-20 11:23:27,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:23:27,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:23:27,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:23:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:23:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2022-11-20 11:23:27,953 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2022-11-20 11:23:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-20 11:23:27,955 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-20 11:23:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2022-11-20 11:23:27,961 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2022-11-20 11:23:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-11-20 11:23:27,961 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-11-20 11:23:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 11:23:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 11:23:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 11:23:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 11:23:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2022-11-20 11:23:27,963 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2022-11-20 11:23:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 11:23:27,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 11:23:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-20 11:23:27,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-20 11:23:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:23:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-20 11:23:27,965 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-20 11:23:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-20 11:23:27,965 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-20 11:23:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:23:27,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:23:28,825 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:23:28,832 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:23:30,185 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:23:36,511 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-20 11:24:25,848 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:24:25,876 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:24:25,877 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:24:25,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:25 BoogieIcfgContainer [2022-11-20 11:24:25,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:24:25,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:24:25,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:24:25,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:24:25,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:23:23" (1/3) ... [2022-11-20 11:24:25,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd5471f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:24:25, skipping insertion in model container [2022-11-20 11:24:25,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:27" (2/3) ... [2022-11-20 11:24:25,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd5471f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:24:25, skipping insertion in model container [2022-11-20 11:24:25,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:25" (3/3) ... [2022-11-20 11:24:25,898 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-20 11:24:25,924 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:24:25,924 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:24:26,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:24:26,058 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;@72cc3f60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:24:26,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:24:26,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 830 states, 585 states have (on average 1.3452991452991454) internal successors, (787), 611 states have internal predecessors, (787), 190 states have call successors, (190), 55 states have call predecessors, (190), 53 states have return successors, (185), 182 states have call predecessors, (185), 185 states have call successors, (185) [2022-11-20 11:24:26,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 11:24:26,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:26,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:26,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:24:26,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:26,098 INFO L85 PathProgramCache]: Analyzing trace with hash -379709077, now seen corresponding path program 1 times [2022-11-20 11:24:26,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:26,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866129205] [2022-11-20 11:24:26,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:26,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:26,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:26,136 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:24:26,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 11:24:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:27,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 2191 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:24:27,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:28,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:28,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:28,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:28,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866129205] [2022-11-20 11:24:28,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866129205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:28,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:28,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:24:28,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226722980] [2022-11-20 11:24:28,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:28,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:24:28,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:28,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:24:28,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:24:28,203 INFO L87 Difference]: Start difference. First operand has 830 states, 585 states have (on average 1.3452991452991454) internal successors, (787), 611 states have internal predecessors, (787), 190 states have call successors, (190), 55 states have call predecessors, (190), 53 states have return successors, (185), 182 states have call predecessors, (185), 185 states have call successors, (185) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:24:28,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:28,663 INFO L93 Difference]: Finished difference Result 1658 states and 2365 transitions. [2022-11-20 11:24:28,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:24:28,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-20 11:24:28,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:28,692 INFO L225 Difference]: With dead ends: 1658 [2022-11-20 11:24:28,692 INFO L226 Difference]: Without dead ends: 818 [2022-11-20 11:24:28,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:24:28,711 INFO L413 NwaCegarLoop]: 1151 mSDtfsCounter, 2 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3451 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:28,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3451 Invalid, 7 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:24:28,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-11-20 11:24:28,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2022-11-20 11:24:28,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 580 states have (on average 1.3327586206896551) internal successors, (773), 599 states have internal predecessors, (773), 185 states have call successors, (185), 53 states have call predecessors, (185), 52 states have return successors, (180), 177 states have call predecessors, (180), 180 states have call successors, (180) [2022-11-20 11:24:28,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1138 transitions. [2022-11-20 11:24:28,851 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1138 transitions. Word has length 28 [2022-11-20 11:24:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:28,853 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 1138 transitions. [2022-11-20 11:24:28,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:24:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1138 transitions. [2022-11-20 11:24:28,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 11:24:28,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:28,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:28,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:29,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:29,083 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:24:29,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:29,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1230635498, now seen corresponding path program 1 times [2022-11-20 11:24:29,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:29,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172833340] [2022-11-20 11:24:29,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:29,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:29,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:29,093 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:24:29,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 11:24:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:30,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 2202 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:24:30,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:31,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:31,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:24:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:32,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:32,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172833340] [2022-11-20 11:24:32,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172833340] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:24:32,044 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:24:32,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 11:24:32,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429354015] [2022-11-20 11:24:32,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:24:32,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:24:32,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:32,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:24:32,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:24:32,048 INFO L87 Difference]: Start difference. First operand 818 states and 1138 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:24:32,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:32,768 INFO L93 Difference]: Finished difference Result 1632 states and 2273 transitions. [2022-11-20 11:24:32,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:24:32,770 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2022-11-20 11:24:32,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:32,778 INFO L225 Difference]: With dead ends: 1632 [2022-11-20 11:24:32,778 INFO L226 Difference]: Without dead ends: 821 [2022-11-20 11:24:32,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:24:32,784 INFO L413 NwaCegarLoop]: 1135 mSDtfsCounter, 11 mSDsluCounter, 2271 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:32,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3406 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:24:32,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-11-20 11:24:32,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2022-11-20 11:24:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 583 states have (on average 1.3310463121783878) internal successors, (776), 602 states have internal predecessors, (776), 185 states have call successors, (185), 53 states have call predecessors, (185), 52 states have return successors, (180), 177 states have call predecessors, (180), 180 states have call successors, (180) [2022-11-20 11:24:32,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1141 transitions. [2022-11-20 11:24:32,847 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1141 transitions. Word has length 29 [2022-11-20 11:24:32,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:32,848 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1141 transitions. [2022-11-20 11:24:32,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:24:32,848 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1141 transitions. [2022-11-20 11:24:32,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-20 11:24:32,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:32,856 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:32,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:33,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:33,083 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:24:33,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:33,083 INFO L85 PathProgramCache]: Analyzing trace with hash -293114837, now seen corresponding path program 2 times [2022-11-20 11:24:33,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:33,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416536960] [2022-11-20 11:24:33,090 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:24:33,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:33,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:33,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:24:33,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 11:24:34,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:24:34,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:24:34,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 2191 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:24:34,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:34,924 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 11:24:34,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:34,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:34,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416536960] [2022-11-20 11:24:34,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416536960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:34,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:34,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:34,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088110205] [2022-11-20 11:24:34,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:34,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:34,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:34,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:34,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:34,928 INFO L87 Difference]: Start difference. First operand 821 states and 1141 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:24:37,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:24:37,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:37,520 INFO L93 Difference]: Finished difference Result 2410 states and 3361 transitions. [2022-11-20 11:24:37,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:37,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-11-20 11:24:37,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:37,533 INFO L225 Difference]: With dead ends: 2410 [2022-11-20 11:24:37,534 INFO L226 Difference]: Without dead ends: 1604 [2022-11-20 11:24:37,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:37,540 INFO L413 NwaCegarLoop]: 1323 mSDtfsCounter, 1095 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:37,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 2441 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-11-20 11:24:37,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-11-20 11:24:37,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2022-11-20 11:24:37,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1138 states have (on average 1.3312829525483305) internal successors, (1515), 1172 states have internal predecessors, (1515), 362 states have call successors, (362), 104 states have call predecessors, (362), 103 states have return successors, (357), 351 states have call predecessors, (357), 357 states have call successors, (357) [2022-11-20 11:24:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2234 transitions. [2022-11-20 11:24:37,688 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2234 transitions. Word has length 32 [2022-11-20 11:24:37,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:37,689 INFO L495 AbstractCegarLoop]: Abstraction has 1604 states and 2234 transitions. [2022-11-20 11:24:37,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:24:37,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2234 transitions. [2022-11-20 11:24:37,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 11:24:37,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:37,698 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:37,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:37,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:37,914 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:24:37,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:37,914 INFO L85 PathProgramCache]: Analyzing trace with hash -84618737, now seen corresponding path program 1 times [2022-11-20 11:24:37,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:37,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106797814] [2022-11-20 11:24:37,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:37,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:37,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:37,921 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:24:37,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 11:24:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:39,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 2280 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:24:39,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:39,569 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 11:24:39,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:39,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:39,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106797814] [2022-11-20 11:24:39,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106797814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:39,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:39,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:39,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422975373] [2022-11-20 11:24:39,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:39,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:39,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:39,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:39,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:39,572 INFO L87 Difference]: Start difference. First operand 1604 states and 2234 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:24:39,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:39,957 INFO L93 Difference]: Finished difference Result 1630 states and 2266 transitions. [2022-11-20 11:24:39,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:39,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-11-20 11:24:39,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:39,968 INFO L225 Difference]: With dead ends: 1630 [2022-11-20 11:24:39,968 INFO L226 Difference]: Without dead ends: 1617 [2022-11-20 11:24:39,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:39,971 INFO L413 NwaCegarLoop]: 1152 mSDtfsCounter, 1132 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:39,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 1168 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:24:39,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2022-11-20 11:24:40,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1604. [2022-11-20 11:24:40,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1138 states have (on average 1.3304042179261863) internal successors, (1514), 1172 states have internal predecessors, (1514), 362 states have call successors, (362), 104 states have call predecessors, (362), 103 states have return successors, (357), 351 states have call predecessors, (357), 357 states have call successors, (357) [2022-11-20 11:24:40,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2233 transitions. [2022-11-20 11:24:40,131 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2233 transitions. Word has length 42 [2022-11-20 11:24:40,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:40,132 INFO L495 AbstractCegarLoop]: Abstraction has 1604 states and 2233 transitions. [2022-11-20 11:24:40,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:24:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2233 transitions. [2022-11-20 11:24:40,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 11:24:40,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:40,134 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:40,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:40,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:40,358 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:24:40,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:40,359 INFO L85 PathProgramCache]: Analyzing trace with hash -27360435, now seen corresponding path program 1 times [2022-11-20 11:24:40,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:40,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307312442] [2022-11-20 11:24:40,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:40,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:40,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:40,365 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:24:40,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 11:24:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:41,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 2279 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:24:41,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:43,885 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 11:24:43,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:43,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:43,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307312442] [2022-11-20 11:24:43,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307312442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:43,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:43,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:43,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543278554] [2022-11-20 11:24:43,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:43,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:43,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:43,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:43,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:43,889 INFO L87 Difference]: Start difference. First operand 1604 states and 2233 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:24:44,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:44,398 INFO L93 Difference]: Finished difference Result 4767 states and 6714 transitions. [2022-11-20 11:24:44,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:44,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-11-20 11:24:44,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:44,419 INFO L225 Difference]: With dead ends: 4767 [2022-11-20 11:24:44,419 INFO L226 Difference]: Without dead ends: 3185 [2022-11-20 11:24:44,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:44,429 INFO L413 NwaCegarLoop]: 1461 mSDtfsCounter, 1109 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:44,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 2583 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:24:44,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2022-11-20 11:24:44,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3175. [2022-11-20 11:24:44,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 2254 states have (on average 1.3300798580301685) internal successors, (2998), 2318 states have internal predecessors, (2998), 716 states have call successors, (716), 205 states have call predecessors, (716), 204 states have return successors, (745), 699 states have call predecessors, (745), 711 states have call successors, (745) [2022-11-20 11:24:44,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4459 transitions. [2022-11-20 11:24:44,685 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4459 transitions. Word has length 42 [2022-11-20 11:24:44,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:44,686 INFO L495 AbstractCegarLoop]: Abstraction has 3175 states and 4459 transitions. [2022-11-20 11:24:44,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:24:44,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4459 transitions. [2022-11-20 11:24:44,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 11:24:44,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:44,688 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:44,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:44,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:44,902 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:24:44,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:44,903 INFO L85 PathProgramCache]: Analyzing trace with hash -848585938, now seen corresponding path program 1 times [2022-11-20 11:24:44,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:44,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725713453] [2022-11-20 11:24:44,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:44,907 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:44,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:44,908 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:24:44,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 11:24:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:46,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 2280 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:24:46,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:48,770 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 11:24:48,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:48,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:48,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725713453] [2022-11-20 11:24:48,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725713453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:48,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:48,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:48,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431451618] [2022-11-20 11:24:48,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:48,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:48,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:48,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:48,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:48,774 INFO L87 Difference]: Start difference. First operand 3175 states and 4459 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:24:49,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:49,732 INFO L93 Difference]: Finished difference Result 9472 states and 13598 transitions. [2022-11-20 11:24:49,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:49,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2022-11-20 11:24:49,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:49,798 INFO L225 Difference]: With dead ends: 9472 [2022-11-20 11:24:49,799 INFO L226 Difference]: Without dead ends: 6319 [2022-11-20 11:24:49,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:49,824 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 1111 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:49,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 2527 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:24:49,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6319 states. [2022-11-20 11:24:50,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6319 to 6310. [2022-11-20 11:24:50,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 4479 states have (on average 1.3275284661754856) internal successors, (5946), 4603 states have internal predecessors, (5946), 1424 states have call successors, (1424), 407 states have call predecessors, (1424), 406 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2022-11-20 11:24:50,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 8961 transitions. [2022-11-20 11:24:50,544 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 8961 transitions. Word has length 43 [2022-11-20 11:24:50,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:50,544 INFO L495 AbstractCegarLoop]: Abstraction has 6310 states and 8961 transitions. [2022-11-20 11:24:50,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:24:50,545 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 8961 transitions. [2022-11-20 11:24:50,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-20 11:24:50,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:50,547 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:50,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:50,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:50,771 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:24:50,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:50,771 INFO L85 PathProgramCache]: Analyzing trace with hash -536767888, now seen corresponding path program 1 times [2022-11-20 11:24:50,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:50,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831085490] [2022-11-20 11:24:50,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:50,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:50,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:50,775 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:24:50,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 11:24:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:52,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 2281 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:24:52,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:53,642 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 11:24:53,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:53,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:53,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831085490] [2022-11-20 11:24:53,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831085490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:53,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:53,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:53,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878893728] [2022-11-20 11:24:53,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:53,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:53,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:53,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:53,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:53,647 INFO L87 Difference]: Start difference. First operand 6310 states and 8961 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:24:54,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:54,522 INFO L93 Difference]: Finished difference Result 6317 states and 8967 transitions. [2022-11-20 11:24:54,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:54,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-11-20 11:24:54,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:54,564 INFO L225 Difference]: With dead ends: 6317 [2022-11-20 11:24:54,564 INFO L226 Difference]: Without dead ends: 6314 [2022-11-20 11:24:54,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:54,570 INFO L413 NwaCegarLoop]: 1414 mSDtfsCounter, 1108 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:54,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 2528 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:24:54,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6314 states. [2022-11-20 11:24:55,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6314 to 6311. [2022-11-20 11:24:55,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6311 states, 4480 states have (on average 1.3274553571428571) internal successors, (5947), 4604 states have internal predecessors, (5947), 1424 states have call successors, (1424), 407 states have call predecessors, (1424), 406 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2022-11-20 11:24:55,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 8962 transitions. [2022-11-20 11:24:55,140 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 8962 transitions. Word has length 44 [2022-11-20 11:24:55,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:55,141 INFO L495 AbstractCegarLoop]: Abstraction has 6311 states and 8962 transitions. [2022-11-20 11:24:55,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:24:55,142 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 8962 transitions. [2022-11-20 11:24:55,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 11:24:55,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:55,144 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:55,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:55,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:55,366 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:24:55,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:55,367 INFO L85 PathProgramCache]: Analyzing trace with hash 539661937, now seen corresponding path program 1 times [2022-11-20 11:24:55,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:55,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038147396] [2022-11-20 11:24:55,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:55,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:55,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:55,373 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:24:55,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 11:24:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:57,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 2282 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:24:57,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:58,037 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 11:24:58,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:58,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:58,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038147396] [2022-11-20 11:24:58,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038147396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:58,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:58,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:58,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233339512] [2022-11-20 11:24:58,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:58,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:58,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:58,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:58,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:58,040 INFO L87 Difference]: Start difference. First operand 6311 states and 8962 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:24:58,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:58,457 INFO L93 Difference]: Finished difference Result 6313 states and 8963 transitions. [2022-11-20 11:24:58,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:58,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-11-20 11:24:58,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:58,506 INFO L225 Difference]: With dead ends: 6313 [2022-11-20 11:24:58,506 INFO L226 Difference]: Without dead ends: 6310 [2022-11-20 11:24:58,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:58,512 INFO L413 NwaCegarLoop]: 1134 mSDtfsCounter, 1099 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:58,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 1134 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:24:58,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6310 states. [2022-11-20 11:24:59,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6310 to 6310. [2022-11-20 11:24:59,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 4480 states have (on average 1.3272321428571427) internal successors, (5946), 4603 states have internal predecessors, (5946), 1423 states have call successors, (1423), 407 states have call predecessors, (1423), 406 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2022-11-20 11:24:59,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 8960 transitions. [2022-11-20 11:24:59,214 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 8960 transitions. Word has length 45 [2022-11-20 11:24:59,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:59,215 INFO L495 AbstractCegarLoop]: Abstraction has 6310 states and 8960 transitions. [2022-11-20 11:24:59,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:24:59,215 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 8960 transitions. [2022-11-20 11:24:59,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-20 11:24:59,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:59,217 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:59,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:59,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:59,442 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:24:59,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:59,443 INFO L85 PathProgramCache]: Analyzing trace with hash -450746989, now seen corresponding path program 1 times [2022-11-20 11:24:59,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:59,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136377803] [2022-11-20 11:24:59,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:59,447 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:59,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:59,448 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:24:59,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 11:25:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:00,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 2283 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:25:00,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 11:25:01,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:25:01,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:01,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136377803] [2022-11-20 11:25:01,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136377803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:01,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:01,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:25:01,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464685364] [2022-11-20 11:25:01,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:01,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:25:01,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:01,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:25:01,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:01,926 INFO L87 Difference]: Start difference. First operand 6310 states and 8960 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:25:02,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:02,453 INFO L93 Difference]: Finished difference Result 6312 states and 8961 transitions. [2022-11-20 11:25:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:25:02,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2022-11-20 11:25:02,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:02,485 INFO L225 Difference]: With dead ends: 6312 [2022-11-20 11:25:02,486 INFO L226 Difference]: Without dead ends: 6300 [2022-11-20 11:25:02,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:02,494 INFO L413 NwaCegarLoop]: 1133 mSDtfsCounter, 1096 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:02,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:25:02,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6300 states. [2022-11-20 11:25:03,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6300 to 6300. [2022-11-20 11:25:03,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6300 states, 4471 states have (on average 1.326996197718631) internal successors, (5933), 4593 states have internal predecessors, (5933), 1422 states have call successors, (1422), 407 states have call predecessors, (1422), 406 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2022-11-20 11:25:03,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6300 states to 6300 states and 8946 transitions. [2022-11-20 11:25:03,254 INFO L78 Accepts]: Start accepts. Automaton has 6300 states and 8946 transitions. Word has length 46 [2022-11-20 11:25:03,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:03,254 INFO L495 AbstractCegarLoop]: Abstraction has 6300 states and 8946 transitions. [2022-11-20 11:25:03,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:25:03,255 INFO L276 IsEmpty]: Start isEmpty. Operand 6300 states and 8946 transitions. [2022-11-20 11:25:03,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-20 11:25:03,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:03,271 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-20 11:25:03,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:03,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:03,494 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:25:03,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:03,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1608963911, now seen corresponding path program 1 times [2022-11-20 11:25:03,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:25:03,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142439476] [2022-11-20 11:25:03,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:03,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:03,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:25:03,506 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:25:03,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 11:25:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:05,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 2617 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:25:05,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 11:25:05,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:25:05,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:05,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142439476] [2022-11-20 11:25:05,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142439476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:05,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:05,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:25:05,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77226955] [2022-11-20 11:25:05,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:05,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:25:05,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:05,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:25:05,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:05,502 INFO L87 Difference]: Start difference. First operand 6300 states and 8946 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:25:06,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:06,763 INFO L93 Difference]: Finished difference Result 12706 states and 18046 transitions. [2022-11-20 11:25:06,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:25:06,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2022-11-20 11:25:06,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:06,798 INFO L225 Difference]: With dead ends: 12706 [2022-11-20 11:25:06,798 INFO L226 Difference]: Without dead ends: 6428 [2022-11-20 11:25:06,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:06,829 INFO L413 NwaCegarLoop]: 1135 mSDtfsCounter, 52 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 2229 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:06,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 2229 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:25:06,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6428 states. [2022-11-20 11:25:07,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6428 to 6404. [2022-11-20 11:25:07,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6404 states, 4574 states have (on average 1.3290336685614341) internal successors, (6079), 4696 states have internal predecessors, (6079), 1422 states have call successors, (1422), 408 states have call predecessors, (1422), 407 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2022-11-20 11:25:07,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6404 states to 6404 states and 9092 transitions. [2022-11-20 11:25:07,644 INFO L78 Accepts]: Start accepts. Automaton has 6404 states and 9092 transitions. Word has length 144 [2022-11-20 11:25:07,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:07,645 INFO L495 AbstractCegarLoop]: Abstraction has 6404 states and 9092 transitions. [2022-11-20 11:25:07,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:25:07,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6404 states and 9092 transitions. [2022-11-20 11:25:07,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-20 11:25:07,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:07,661 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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] [2022-11-20 11:25:07,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:07,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:07,874 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:25:07,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:07,875 INFO L85 PathProgramCache]: Analyzing trace with hash 586713842, now seen corresponding path program 1 times [2022-11-20 11:25:07,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:25:07,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849833085] [2022-11-20 11:25:07,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:07,880 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:07,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:25:07,882 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:25:07,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 11:25:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:09,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 2644 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:25:09,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 11:25:10,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:25:10,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:10,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849833085] [2022-11-20 11:25:10,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849833085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:10,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:10,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:25:10,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236103937] [2022-11-20 11:25:10,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:10,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:25:10,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:10,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:25:10,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:10,413 INFO L87 Difference]: Start difference. First operand 6404 states and 9092 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 11:25:12,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:25:13,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:13,748 INFO L93 Difference]: Finished difference Result 13178 states and 18684 transitions. [2022-11-20 11:25:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:25:13,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 156 [2022-11-20 11:25:13,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:13,786 INFO L225 Difference]: With dead ends: 13178 [2022-11-20 11:25:13,786 INFO L226 Difference]: Without dead ends: 6800 [2022-11-20 11:25:13,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:13,818 INFO L413 NwaCegarLoop]: 1164 mSDtfsCounter, 205 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2123 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:13,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2123 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 11:25:13,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6800 states. [2022-11-20 11:25:14,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6800 to 6776. [2022-11-20 11:25:14,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6776 states, 4898 states have (on average 1.3258472846059617) internal successors, (6494), 5020 states have internal predecessors, (6494), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 439 states have return successors, (1607), 1411 states have call predecessors, (1607), 1435 states have call successors, (1607) [2022-11-20 11:25:14,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6776 states to 6776 states and 9539 transitions. [2022-11-20 11:25:14,538 INFO L78 Accepts]: Start accepts. Automaton has 6776 states and 9539 transitions. Word has length 156 [2022-11-20 11:25:14,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:14,538 INFO L495 AbstractCegarLoop]: Abstraction has 6776 states and 9539 transitions. [2022-11-20 11:25:14,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 11:25:14,539 INFO L276 IsEmpty]: Start isEmpty. Operand 6776 states and 9539 transitions. [2022-11-20 11:25:14,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-20 11:25:14,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:14,549 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 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] [2022-11-20 11:25:14,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:14,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:14,774 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:25:14,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:14,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1310333478, now seen corresponding path program 1 times [2022-11-20 11:25:14,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:25:14,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401945228] [2022-11-20 11:25:14,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:14,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:14,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:25:14,783 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:25:14,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 11:25:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:17,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 2918 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:25:17,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:18,204 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 11:25:18,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:25:18,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:18,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401945228] [2022-11-20 11:25:18,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401945228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:18,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:18,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:25:18,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427895916] [2022-11-20 11:25:18,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:18,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:25:18,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:18,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:25:18,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:25:18,207 INFO L87 Difference]: Start difference. First operand 6776 states and 9539 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:25:19,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:19,263 INFO L93 Difference]: Finished difference Result 13590 states and 19486 transitions. [2022-11-20 11:25:19,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:25:19,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 160 [2022-11-20 11:25:19,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:19,303 INFO L225 Difference]: With dead ends: 13590 [2022-11-20 11:25:19,304 INFO L226 Difference]: Without dead ends: 6808 [2022-11-20 11:25:19,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:25:19,339 INFO L413 NwaCegarLoop]: 1130 mSDtfsCounter, 0 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4504 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:19,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4504 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:25:19,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6808 states. [2022-11-20 11:25:20,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6808 to 6808. [2022-11-20 11:25:20,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6808 states, 4914 states have (on average 1.3247863247863247) internal successors, (6510), 5052 states have internal predecessors, (6510), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 455 states have return successors, (1679), 1411 states have call predecessors, (1679), 1435 states have call successors, (1679) [2022-11-20 11:25:20,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6808 states to 6808 states and 9627 transitions. [2022-11-20 11:25:20,369 INFO L78 Accepts]: Start accepts. Automaton has 6808 states and 9627 transitions. Word has length 160 [2022-11-20 11:25:20,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:20,370 INFO L495 AbstractCegarLoop]: Abstraction has 6808 states and 9627 transitions. [2022-11-20 11:25:20,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:25:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 6808 states and 9627 transitions. [2022-11-20 11:25:20,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-20 11:25:20,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:20,380 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2022-11-20 11:25:20,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:20,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:20,606 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:25:20,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:20,607 INFO L85 PathProgramCache]: Analyzing trace with hash -738039550, now seen corresponding path program 1 times [2022-11-20 11:25:20,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:25:20,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517223641] [2022-11-20 11:25:20,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:20,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:20,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:25:20,613 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:25:20,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 11:25:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:23,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 2952 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:25:23,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:24,289 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 11:25:24,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:25:24,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:24,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517223641] [2022-11-20 11:25:24,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517223641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:24,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:24,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:25:24,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744773016] [2022-11-20 11:25:24,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:24,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:25:24,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:24,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:25:24,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:25:24,293 INFO L87 Difference]: Start difference. First operand 6808 states and 9627 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:25:27,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:25:29,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:25:29,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:29,982 INFO L93 Difference]: Finished difference Result 14326 states and 20368 transitions. [2022-11-20 11:25:29,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:25:29,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 172 [2022-11-20 11:25:29,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:30,016 INFO L225 Difference]: With dead ends: 14326 [2022-11-20 11:25:30,016 INFO L226 Difference]: Without dead ends: 7544 [2022-11-20 11:25:30,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:25:30,041 INFO L413 NwaCegarLoop]: 1202 mSDtfsCounter, 158 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 5852 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:30,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 5852 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 34 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2022-11-20 11:25:30,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7544 states. [2022-11-20 11:25:30,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7544 to 6832. [2022-11-20 11:25:30,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6832 states, 4938 states have (on average 1.3232077764277035) internal successors, (6534), 5068 states have internal predecessors, (6534), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 455 states have return successors, (1679), 1419 states have call predecessors, (1679), 1435 states have call successors, (1679) [2022-11-20 11:25:30,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 9651 transitions. [2022-11-20 11:25:30,840 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 9651 transitions. Word has length 172 [2022-11-20 11:25:30,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:30,841 INFO L495 AbstractCegarLoop]: Abstraction has 6832 states and 9651 transitions. [2022-11-20 11:25:30,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:25:30,841 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 9651 transitions. [2022-11-20 11:25:30,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-20 11:25:30,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:30,850 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 11:25:30,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:31,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:31,074 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:25:31,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:31,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1206848726, now seen corresponding path program 1 times [2022-11-20 11:25:31,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:25:31,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459427406] [2022-11-20 11:25:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:31,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:31,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:25:31,081 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:25:31,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 11:25:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:34,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 2969 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:25:34,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:34,289 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 11:25:34,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:25:34,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:34,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459427406] [2022-11-20 11:25:34,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459427406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:34,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:34,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:25:34,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411233307] [2022-11-20 11:25:34,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:34,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:25:34,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:34,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:25:34,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:34,293 INFO L87 Difference]: Start difference. First operand 6832 states and 9651 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:25:36,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:25:36,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:36,929 INFO L93 Difference]: Finished difference Result 14726 states and 20932 transitions. [2022-11-20 11:25:36,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:25:36,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 178 [2022-11-20 11:25:36,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:36,969 INFO L225 Difference]: With dead ends: 14726 [2022-11-20 11:25:36,969 INFO L226 Difference]: Without dead ends: 7920 [2022-11-20 11:25:36,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:36,996 INFO L413 NwaCegarLoop]: 1216 mSDtfsCounter, 134 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:36,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 2349 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 11:25:37,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7920 states. [2022-11-20 11:25:37,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7920 to 7008. [2022-11-20 11:25:37,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 5114 states have (on average 1.327727806022683) internal successors, (6790), 5244 states have internal predecessors, (6790), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 455 states have return successors, (1679), 1419 states have call predecessors, (1679), 1435 states have call successors, (1679) [2022-11-20 11:25:37,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 9907 transitions. [2022-11-20 11:25:37,906 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 9907 transitions. Word has length 178 [2022-11-20 11:25:37,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:37,906 INFO L495 AbstractCegarLoop]: Abstraction has 7008 states and 9907 transitions. [2022-11-20 11:25:37,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:25:37,907 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 9907 transitions. [2022-11-20 11:25:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-20 11:25:37,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:37,917 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 11:25:37,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:38,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:38,142 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:25:38,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:38,143 INFO L85 PathProgramCache]: Analyzing trace with hash 197396526, now seen corresponding path program 1 times [2022-11-20 11:25:38,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:25:38,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093622313] [2022-11-20 11:25:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:38,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:38,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:25:38,154 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:25:38,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 11:25:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:41,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 3002 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:25:41,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:41,675 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 11:25:41,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:25:41,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:41,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093622313] [2022-11-20 11:25:41,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093622313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:41,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:41,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:25:41,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75630902] [2022-11-20 11:25:41,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:41,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:25:41,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:41,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:25:41,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:41,678 INFO L87 Difference]: Start difference. First operand 7008 states and 9907 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 11:25:42,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:42,514 INFO L93 Difference]: Finished difference Result 14038 states and 19866 transitions. [2022-11-20 11:25:42,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:25:42,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 182 [2022-11-20 11:25:42,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:42,554 INFO L225 Difference]: With dead ends: 14038 [2022-11-20 11:25:42,554 INFO L226 Difference]: Without dead ends: 7056 [2022-11-20 11:25:42,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:42,584 INFO L413 NwaCegarLoop]: 1127 mSDtfsCounter, 5 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2251 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:42,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2251 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:25:42,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7056 states. [2022-11-20 11:25:43,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7056 to 7040. [2022-11-20 11:25:43,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 5146 states have (on average 1.3272444617178392) internal successors, (6830), 5276 states have internal predecessors, (6830), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 455 states have return successors, (1679), 1419 states have call predecessors, (1679), 1435 states have call successors, (1679) [2022-11-20 11:25:43,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 9947 transitions. [2022-11-20 11:25:43,527 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 9947 transitions. Word has length 182 [2022-11-20 11:25:43,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:43,529 INFO L495 AbstractCegarLoop]: Abstraction has 7040 states and 9947 transitions. [2022-11-20 11:25:43,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 11:25:43,529 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 9947 transitions. [2022-11-20 11:25:43,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-20 11:25:43,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:43,538 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 11:25:43,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:43,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:43,762 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:25:43,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:43,763 INFO L85 PathProgramCache]: Analyzing trace with hash 469072622, now seen corresponding path program 1 times [2022-11-20 11:25:43,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:25:43,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950780562] [2022-11-20 11:25:43,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:43,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:43,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:25:43,768 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:25:43,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 11:25:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:46,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 3005 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:25:46,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:47,688 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 11:25:47,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:25:47,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:47,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950780562] [2022-11-20 11:25:47,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950780562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:47,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:47,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:25:47,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260501623] [2022-11-20 11:25:47,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:47,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:25:47,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:47,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:25:47,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:25:47,693 INFO L87 Difference]: Start difference. First operand 7040 states and 9947 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 11:25:49,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:49,181 INFO L93 Difference]: Finished difference Result 15518 states and 22040 transitions. [2022-11-20 11:25:49,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:25:49,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 184 [2022-11-20 11:25:49,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:49,219 INFO L225 Difference]: With dead ends: 15518 [2022-11-20 11:25:49,219 INFO L226 Difference]: Without dead ends: 8504 [2022-11-20 11:25:49,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:25:49,246 INFO L413 NwaCegarLoop]: 1304 mSDtfsCounter, 154 mSDsluCounter, 5045 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 6349 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:49,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 6349 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:25:49,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8504 states. [2022-11-20 11:25:50,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8504 to 7072. [2022-11-20 11:25:50,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7072 states, 5170 states have (on average 1.325725338491296) internal successors, (6854), 5300 states have internal predecessors, (6854), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 463 states have return successors, (1687), 1427 states have call predecessors, (1687), 1435 states have call successors, (1687) [2022-11-20 11:25:50,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7072 states to 7072 states and 9979 transitions. [2022-11-20 11:25:50,205 INFO L78 Accepts]: Start accepts. Automaton has 7072 states and 9979 transitions. Word has length 184 [2022-11-20 11:25:50,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:50,206 INFO L495 AbstractCegarLoop]: Abstraction has 7072 states and 9979 transitions. [2022-11-20 11:25:50,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 11:25:50,206 INFO L276 IsEmpty]: Start isEmpty. Operand 7072 states and 9979 transitions. [2022-11-20 11:25:50,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-20 11:25:50,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:50,215 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 11:25:50,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:50,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:50,430 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:25:50,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:50,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1162855401, now seen corresponding path program 1 times [2022-11-20 11:25:50,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:25:50,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707703701] [2022-11-20 11:25:50,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:50,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:50,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:25:50,438 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:25:50,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 11:25:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:53,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 3007 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:25:53,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:54,057 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 11:25:54,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:25:54,635 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 11:25:54,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:54,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707703701] [2022-11-20 11:25:54,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707703701] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:25:54,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:25:54,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-20 11:25:54,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101411787] [2022-11-20 11:25:54,636 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:25:54,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:25:54,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:54,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:25:54,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:25:54,638 INFO L87 Difference]: Start difference. First operand 7072 states and 9979 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 11:25:55,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:55,540 INFO L93 Difference]: Finished difference Result 14198 states and 20058 transitions. [2022-11-20 11:25:55,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:25:55,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 185 [2022-11-20 11:25:55,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:55,573 INFO L225 Difference]: With dead ends: 14198 [2022-11-20 11:25:55,574 INFO L226 Difference]: Without dead ends: 7152 [2022-11-20 11:25:55,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:25:55,600 INFO L413 NwaCegarLoop]: 1130 mSDtfsCounter, 26 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3383 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:55,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3383 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:25:55,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7152 states. [2022-11-20 11:25:56,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7152 to 7112. [2022-11-20 11:25:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 5210 states have (on average 1.324760076775432) internal successors, (6902), 5340 states have internal predecessors, (6902), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 463 states have return successors, (1687), 1427 states have call predecessors, (1687), 1435 states have call successors, (1687) [2022-11-20 11:25:56,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 10027 transitions. [2022-11-20 11:25:56,547 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 10027 transitions. Word has length 185 [2022-11-20 11:25:56,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:56,548 INFO L495 AbstractCegarLoop]: Abstraction has 7112 states and 10027 transitions. [2022-11-20 11:25:56,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 11:25:56,548 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 10027 transitions. [2022-11-20 11:25:56,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-20 11:25:56,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:56,558 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:56,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:56,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:56,775 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:25:56,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:56,775 INFO L85 PathProgramCache]: Analyzing trace with hash 562115561, now seen corresponding path program 1 times [2022-11-20 11:25:56,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:25:56,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181034185] [2022-11-20 11:25:56,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:56,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:56,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:25:56,785 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:25:56,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-20 11:26:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:00,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 3010 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:26:00,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:26:01,180 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 11:26:01,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:26:03,105 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 11:26:03,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:26:03,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181034185] [2022-11-20 11:26:03,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181034185] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:26:03,106 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:26:03,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-20 11:26:03,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063005942] [2022-11-20 11:26:03,107 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:26:03,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:26:03,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:26:03,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:26:03,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:26:03,109 INFO L87 Difference]: Start difference. First operand 7112 states and 10027 transitions. Second operand has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 10 states have internal predecessors, (124), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 11:26:07,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:07,447 INFO L93 Difference]: Finished difference Result 17102 states and 24330 transitions. [2022-11-20 11:26:07,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:26:07,448 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 10 states have internal predecessors, (124), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) Word has length 187 [2022-11-20 11:26:07,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:07,480 INFO L225 Difference]: With dead ends: 17102 [2022-11-20 11:26:07,480 INFO L226 Difference]: Without dead ends: 10016 [2022-11-20 11:26:07,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:26:07,501 INFO L413 NwaCegarLoop]: 1490 mSDtfsCounter, 330 mSDsluCounter, 9892 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 11382 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:07,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 11382 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 11:26:07,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10016 states. [2022-11-20 11:26:08,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10016 to 7104. [2022-11-20 11:26:08,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7104 states, 5202 states have (on average 1.3252595155709344) internal successors, (6894), 5332 states have internal predecessors, (6894), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 463 states have return successors, (1687), 1427 states have call predecessors, (1687), 1435 states have call successors, (1687) [2022-11-20 11:26:08,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7104 states to 7104 states and 10019 transitions. [2022-11-20 11:26:08,266 INFO L78 Accepts]: Start accepts. Automaton has 7104 states and 10019 transitions. Word has length 187 [2022-11-20 11:26:08,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:08,267 INFO L495 AbstractCegarLoop]: Abstraction has 7104 states and 10019 transitions. [2022-11-20 11:26:08,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 10 states have internal predecessors, (124), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 11:26:08,267 INFO L276 IsEmpty]: Start isEmpty. Operand 7104 states and 10019 transitions. [2022-11-20 11:26:08,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-20 11:26:08,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:08,278 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-11-20 11:26:08,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-20 11:26:08,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:26:08,495 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:26:08,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:08,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2093646752, now seen corresponding path program 1 times [2022-11-20 11:26:08,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:26:08,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473898063] [2022-11-20 11:26:08,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:08,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:26:08,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:26:08,500 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:26:08,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3dc423-bce1-4d24-ae65-2702c7b5bc44/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process