./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/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_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/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_3df98313-0284-4967-aecc-4f9ec67ad84e/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 a4ce0bc2df24452096decdc7e961550a8934d52ee8eab37caec2ef22f016be61 --- 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 09:27:34,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:34,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:34,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:34,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:34,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:34,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:34,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:34,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:34,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:34,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:34,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:34,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:34,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:34,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:34,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:34,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:34,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:34,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:34,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:34,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:34,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:34,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:34,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:34,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:34,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:34,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:34,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:34,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:34,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:34,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:34,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:34,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:34,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:34,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:34,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:34,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:34,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:34,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:34,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:34,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:34,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:27:34,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:34,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:34,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:34,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:34,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:34,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:34,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:34,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:34,478 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:34,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:34,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:34,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:34,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:34,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:34,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:34,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:34,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:34,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:34,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:34,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:34,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:34,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:34,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:34,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:34,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:34,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:34,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:34,484 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:34,484 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:34,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:34,484 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_3df98313-0284-4967-aecc-4f9ec67ad84e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4ce0bc2df24452096decdc7e961550a8934d52ee8eab37caec2ef22f016be61 [2022-11-20 09:27:34,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:34,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:34,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:34,775 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:34,775 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:34,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i [2022-11-20 09:27:38,052 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:38,818 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:38,819 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i [2022-11-20 09:27:38,868 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/data/83e99a54d/5f46b2bb5b1746989247811adf631106/FLAG860f9355d [2022-11-20 09:27:38,884 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/data/83e99a54d/5f46b2bb5b1746989247811adf631106 [2022-11-20 09:27:38,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:38,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:38,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:38,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:38,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:38,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:38" (1/1) ... [2022-11-20 09:27:38,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60d3f86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:38, skipping insertion in model container [2022-11-20 09:27:38,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:38" (1/1) ... [2022-11-20 09:27:38,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:39,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:42,057 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[309910,309923] [2022-11-20 09:27:42,062 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310055,310068] [2022-11-20 09:27:42,062 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310201,310214] [2022-11-20 09:27:42,064 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310366,310379] [2022-11-20 09:27:42,065 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310524,310537] [2022-11-20 09:27:42,072 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310682,310695] [2022-11-20 09:27:42,074 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310840,310853] [2022-11-20 09:27:42,076 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311000,311013] [2022-11-20 09:27:42,077 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311159,311172] [2022-11-20 09:27:42,077 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311298,311311] [2022-11-20 09:27:42,078 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311440,311453] [2022-11-20 09:27:42,079 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311589,311602] [2022-11-20 09:27:42,080 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311728,311741] [2022-11-20 09:27:42,080 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311883,311896] [2022-11-20 09:27:42,081 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312043,312056] [2022-11-20 09:27:42,081 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312194,312207] [2022-11-20 09:27:42,082 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312345,312358] [2022-11-20 09:27:42,082 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312497,312510] [2022-11-20 09:27:42,083 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312646,312659] [2022-11-20 09:27:42,084 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312794,312807] [2022-11-20 09:27:42,084 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312951,312964] [2022-11-20 09:27:42,085 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313100,313113] [2022-11-20 09:27:42,085 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313256,313269] [2022-11-20 09:27:42,086 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313409,313422] [2022-11-20 09:27:42,088 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313555,313568] [2022-11-20 09:27:42,089 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313698,313711] [2022-11-20 09:27:42,090 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313850,313863] [2022-11-20 09:27:42,090 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313996,314009] [2022-11-20 09:27:42,091 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314141,314154] [2022-11-20 09:27:42,092 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314295,314308] [2022-11-20 09:27:42,092 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314446,314459] [2022-11-20 09:27:42,094 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314601,314614] [2022-11-20 09:27:42,095 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314753,314766] [2022-11-20 09:27:42,097 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314908,314921] [2022-11-20 09:27:42,097 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315072,315085] [2022-11-20 09:27:42,099 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315228,315241] [2022-11-20 09:27:42,100 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315392,315405] [2022-11-20 09:27:42,101 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315534,315547] [2022-11-20 09:27:42,101 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315692,315705] [2022-11-20 09:27:42,102 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315859,315872] [2022-11-20 09:27:42,102 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316018,316031] [2022-11-20 09:27:42,103 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316177,316190] [2022-11-20 09:27:42,104 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316326,316339] [2022-11-20 09:27:42,105 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316473,316486] [2022-11-20 09:27:42,105 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316612,316625] [2022-11-20 09:27:42,106 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316775,316788] [2022-11-20 09:27:42,106 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316941,316954] [2022-11-20 09:27:42,108 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317105,317118] [2022-11-20 09:27:42,114 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317270,317283] [2022-11-20 09:27:42,115 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317435,317448] [2022-11-20 09:27:42,115 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317601,317614] [2022-11-20 09:27:42,116 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317766,317779] [2022-11-20 09:27:42,117 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317933,317946] [2022-11-20 09:27:42,117 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318093,318106] [2022-11-20 09:27:42,118 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318255,318268] [2022-11-20 09:27:42,118 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318414,318427] [2022-11-20 09:27:42,119 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318560,318573] [2022-11-20 09:27:42,119 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318703,318716] [2022-11-20 09:27:42,120 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318847,318860] [2022-11-20 09:27:42,120 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318990,319003] [2022-11-20 09:27:42,121 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319134,319147] [2022-11-20 09:27:42,122 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319275,319288] [2022-11-20 09:27:42,123 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319413,319426] [2022-11-20 09:27:42,123 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319571,319584] [2022-11-20 09:27:42,124 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319730,319743] [2022-11-20 09:27:42,124 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319886,319899] [2022-11-20 09:27:42,125 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320035,320048] [2022-11-20 09:27:42,125 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320187,320200] [2022-11-20 09:27:42,127 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320338,320351] [2022-11-20 09:27:42,127 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320487,320500] [2022-11-20 09:27:42,128 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320639,320652] [2022-11-20 09:27:42,128 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320787,320800] [2022-11-20 09:27:42,129 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320940,320953] [2022-11-20 09:27:42,130 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321091,321104] [2022-11-20 09:27:42,131 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321241,321254] [2022-11-20 09:27:42,131 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321388,321401] [2022-11-20 09:27:42,133 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321539,321552] [2022-11-20 09:27:42,133 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321690,321703] [2022-11-20 09:27:42,134 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321838,321851] [2022-11-20 09:27:42,135 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322004,322017] [2022-11-20 09:27:42,136 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322173,322186] [2022-11-20 09:27:42,137 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322340,322353] [2022-11-20 09:27:42,138 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322508,322521] [2022-11-20 09:27:42,139 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322658,322671] [2022-11-20 09:27:42,139 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322805,322818] [2022-11-20 09:27:42,140 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322966,322979] [2022-11-20 09:27:42,140 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[323136,323149] [2022-11-20 09:27:42,141 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[323298,323311] [2022-11-20 09:27:42,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:42,195 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:27:42,586 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[309910,309923] [2022-11-20 09:27:42,587 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310055,310068] [2022-11-20 09:27:42,587 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310201,310214] [2022-11-20 09:27:42,588 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310366,310379] [2022-11-20 09:27:42,588 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310524,310537] [2022-11-20 09:27:42,589 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310682,310695] [2022-11-20 09:27:42,589 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310840,310853] [2022-11-20 09:27:42,590 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311000,311013] [2022-11-20 09:27:42,590 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311159,311172] [2022-11-20 09:27:42,590 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311298,311311] [2022-11-20 09:27:42,591 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311440,311453] [2022-11-20 09:27:42,591 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311589,311602] [2022-11-20 09:27:42,592 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311728,311741] [2022-11-20 09:27:42,592 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311883,311896] [2022-11-20 09:27:42,592 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312043,312056] [2022-11-20 09:27:42,593 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312194,312207] [2022-11-20 09:27:42,593 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312345,312358] [2022-11-20 09:27:42,593 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312497,312510] [2022-11-20 09:27:42,594 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312646,312659] [2022-11-20 09:27:42,594 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312794,312807] [2022-11-20 09:27:42,594 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312951,312964] [2022-11-20 09:27:42,595 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313100,313113] [2022-11-20 09:27:42,595 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313256,313269] [2022-11-20 09:27:42,596 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313409,313422] [2022-11-20 09:27:42,596 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313555,313568] [2022-11-20 09:27:42,596 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313698,313711] [2022-11-20 09:27:42,597 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313850,313863] [2022-11-20 09:27:42,597 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313996,314009] [2022-11-20 09:27:42,597 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314141,314154] [2022-11-20 09:27:42,598 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314295,314308] [2022-11-20 09:27:42,598 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314446,314459] [2022-11-20 09:27:42,598 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314601,314614] [2022-11-20 09:27:42,599 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314753,314766] [2022-11-20 09:27:42,599 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314908,314921] [2022-11-20 09:27:42,600 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315072,315085] [2022-11-20 09:27:42,600 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315228,315241] [2022-11-20 09:27:42,600 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315392,315405] [2022-11-20 09:27:42,601 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315534,315547] [2022-11-20 09:27:42,601 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315692,315705] [2022-11-20 09:27:42,602 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315859,315872] [2022-11-20 09:27:42,602 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316018,316031] [2022-11-20 09:27:42,602 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316177,316190] [2022-11-20 09:27:42,603 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316326,316339] [2022-11-20 09:27:42,603 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316473,316486] [2022-11-20 09:27:42,604 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316612,316625] [2022-11-20 09:27:42,604 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316775,316788] [2022-11-20 09:27:42,604 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316941,316954] [2022-11-20 09:27:42,605 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317105,317118] [2022-11-20 09:27:42,605 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317270,317283] [2022-11-20 09:27:42,605 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317435,317448] [2022-11-20 09:27:42,606 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317601,317614] [2022-11-20 09:27:42,606 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317766,317779] [2022-11-20 09:27:42,607 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317933,317946] [2022-11-20 09:27:42,607 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318093,318106] [2022-11-20 09:27:42,607 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318255,318268] [2022-11-20 09:27:42,608 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318414,318427] [2022-11-20 09:27:42,608 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318560,318573] [2022-11-20 09:27:42,609 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318703,318716] [2022-11-20 09:27:42,609 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318847,318860] [2022-11-20 09:27:42,609 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318990,319003] [2022-11-20 09:27:42,610 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319134,319147] [2022-11-20 09:27:42,610 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319275,319288] [2022-11-20 09:27:42,611 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319413,319426] [2022-11-20 09:27:42,611 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319571,319584] [2022-11-20 09:27:42,611 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319730,319743] [2022-11-20 09:27:42,612 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319886,319899] [2022-11-20 09:27:42,612 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320035,320048] [2022-11-20 09:27:42,613 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320187,320200] [2022-11-20 09:27:42,613 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320338,320351] [2022-11-20 09:27:42,613 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320487,320500] [2022-11-20 09:27:42,614 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320639,320652] [2022-11-20 09:27:42,614 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320787,320800] [2022-11-20 09:27:42,615 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320940,320953] [2022-11-20 09:27:42,615 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321091,321104] [2022-11-20 09:27:42,615 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321241,321254] [2022-11-20 09:27:42,616 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321388,321401] [2022-11-20 09:27:42,616 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321539,321552] [2022-11-20 09:27:42,616 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321690,321703] [2022-11-20 09:27:42,617 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321838,321851] [2022-11-20 09:27:42,617 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322004,322017] [2022-11-20 09:27:42,618 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322173,322186] [2022-11-20 09:27:42,618 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322340,322353] [2022-11-20 09:27:42,618 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322508,322521] [2022-11-20 09:27:42,619 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322658,322671] [2022-11-20 09:27:42,619 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322805,322818] [2022-11-20 09:27:42,619 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322966,322979] [2022-11-20 09:27:42,620 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[323136,323149] [2022-11-20 09:27:42,620 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_3df98313-0284-4967-aecc-4f9ec67ad84e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[323298,323311] [2022-11-20 09:27:42,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:42,835 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:27:42,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42 WrapperNode [2022-11-20 09:27:42,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:42,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:42,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:27:42,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:27:42,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42" (1/1) ... [2022-11-20 09:27:42,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42" (1/1) ... [2022-11-20 09:27:43,080 INFO L138 Inliner]: procedures = 571, calls = 1721, calls flagged for inlining = 244, calls inlined = 125, statements flattened = 2377 [2022-11-20 09:27:43,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:43,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:27:43,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:27:43,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:27:43,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42" (1/1) ... [2022-11-20 09:27:43,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42" (1/1) ... [2022-11-20 09:27:43,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42" (1/1) ... [2022-11-20 09:27:43,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42" (1/1) ... [2022-11-20 09:27:43,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42" (1/1) ... [2022-11-20 09:27:43,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42" (1/1) ... [2022-11-20 09:27:43,210 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42" (1/1) ... [2022-11-20 09:27:43,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42" (1/1) ... [2022-11-20 09:27:43,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:27:43,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:27:43,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:27:43,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:27:43,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42" (1/1) ... [2022-11-20 09:27:43,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:43,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:27:43,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:27:43,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:27:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-20 09:27:43,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-20 09:27:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 09:27:43,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 09:27:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 09:27:43,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 09:27:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:27:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:27:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_remap [2022-11-20 09:27:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_remap [2022-11-20 09:27:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-20 09:27:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-20 09:27:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-20 09:27:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-20 09:27:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-20 09:27:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-20 09:27:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-20 09:27:43,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-20 09:27:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 09:27:43,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 09:27:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 09:27:43,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 09:27:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 09:27:43,347 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 09:27:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 09:27:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 09:27:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-20 09:27:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-20 09:27:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:27:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 09:27:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 09:27:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 09:27:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 09:27:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-20 09:27:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-20 09:27:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mtx_of_vme_dma_resource [2022-11-20 09:27:43,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mtx_of_vme_dma_resource [2022-11-20 09:27:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-20 09:27:43,349 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-20 09:27:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 09:27:43,349 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 09:27:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 09:27:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-20 09:27:43,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-20 09:27:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 09:27:43,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 09:27:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-20 09:27:43,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-20 09:27:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:27:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-20 09:27:43,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-20 09:27:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-20 09:27:43,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-20 09:27:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-20 09:27:43,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-20 09:27:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 09:27:43,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 09:27:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 09:27:43,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 09:27:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-20 09:27:43,352 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-20 09:27:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-20 09:27:43,352 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-20 09:27:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 09:27:43,352 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 09:27:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-20 09:27:43,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-20 09:27:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 09:27:43,353 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 09:27:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-20 09:27:43,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-20 09:27:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-20 09:27:43,353 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-20 09:27:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:27:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-20 09:27:43,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-20 09:27:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:27:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 09:27:43,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 09:27:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:27:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:27:43,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:27:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-20 09:27:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-20 09:27:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mtx_of_vme_dma_resource [2022-11-20 09:27:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mtx_of_vme_dma_resource [2022-11-20 09:27:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-20 09:27:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-20 09:27:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 09:27:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 09:27:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-20 09:27:43,365 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-20 09:27:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:27:43,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:27:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 09:27:43,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 09:27:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 09:27:43,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 09:27:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2022-11-20 09:27:43,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2022-11-20 09:27:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-20 09:27:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-20 09:27:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-20 09:27:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-20 09:27:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:27:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 09:27:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 09:27:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-20 09:27:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-20 09:27:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:27:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:27:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure ca91cx42_slot_get [2022-11-20 09:27:43,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ca91cx42_slot_get [2022-11-20 09:27:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-20 09:27:43,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-20 09:27:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 09:27:43,368 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 09:27:43,368 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-20 09:27:43,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-20 09:27:43,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-20 09:27:43,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-20 09:27:43,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 09:27:43,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 09:27:43,368 INFO L130 BoogieDeclarations]: Found specification of procedure ca91cx42_irq_exit [2022-11-20 09:27:43,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ca91cx42_irq_exit [2022-11-20 09:27:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 09:27:43,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 09:27:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-20 09:27:43,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-20 09:27:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 09:27:43,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 09:27:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-20 09:27:43,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-20 09:27:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure ca91cx42_crcsr_exit [2022-11-20 09:27:43,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ca91cx42_crcsr_exit [2022-11-20 09:27:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-20 09:27:43,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-20 09:27:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 09:27:43,370 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 09:27:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 09:27:43,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 09:27:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:27:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure ca91cx42_remove [2022-11-20 09:27:43,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ca91cx42_remove [2022-11-20 09:27:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-20 09:27:43,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-20 09:27:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:27:43,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:27:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-20 09:27:43,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-20 09:27:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 09:27:43,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 09:27:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 09:27:43,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 09:27:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-20 09:27:43,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-20 09:27:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure ca91cx42_dma_busy [2022-11-20 09:27:43,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ca91cx42_dma_busy [2022-11-20 09:27:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:27:44,112 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:27:44,115 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:27:44,315 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 09:27:47,544 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:27:47,557 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:27:47,558 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 09:27:47,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:47 BoogieIcfgContainer [2022-11-20 09:27:47,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:27:47,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:27:47,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:27:47,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:27:47,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:38" (1/3) ... [2022-11-20 09:27:47,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42da406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:47, skipping insertion in model container [2022-11-20 09:27:47,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:42" (2/3) ... [2022-11-20 09:27:47,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42da406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:47, skipping insertion in model container [2022-11-20 09:27:47,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:47" (3/3) ... [2022-11-20 09:27:47,569 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i [2022-11-20 09:27:47,589 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:27:47,589 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-20 09:27:47,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:27:47,680 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;@305c4269, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:27:47,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-20 09:27:47,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 962 states, 611 states have (on average 1.2422258592471358) internal successors, (759), 652 states have internal predecessors, (759), 250 states have call successors, (250), 73 states have call predecessors, (250), 72 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) [2022-11-20 09:27:47,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-20 09:27:47,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:47,702 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 09:27:47,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:27:47,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:47,708 INFO L85 PathProgramCache]: Analyzing trace with hash 49213849, now seen corresponding path program 1 times [2022-11-20 09:27:47,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:47,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067874570] [2022-11-20 09:27:47,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:47,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:27:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:27:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:27:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:27:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:27:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:27:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:27:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:27:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:27:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:27:48,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:48,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067874570] [2022-11-20 09:27:48,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067874570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:48,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:48,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:27:48,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158058016] [2022-11-20 09:27:48,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:48,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:48,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:48,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:48,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:48,954 INFO L87 Difference]: Start difference. First operand has 962 states, 611 states have (on average 1.2422258592471358) internal successors, (759), 652 states have internal predecessors, (759), 250 states have call successors, (250), 73 states have call predecessors, (250), 72 states have return successors, (247), 247 states have call predecessors, (247), 247 states have call successors, (247) Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 09:27:54,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:54,097 INFO L93 Difference]: Finished difference Result 2814 states and 3812 transitions. [2022-11-20 09:27:54,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 09:27:54,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2022-11-20 09:27:54,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:54,151 INFO L225 Difference]: With dead ends: 2814 [2022-11-20 09:27:54,151 INFO L226 Difference]: Without dead ends: 1858 [2022-11-20 09:27:54,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-20 09:27:54,173 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 2404 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 3130 mSolverCounterSat, 1416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 2858 SdHoareTripleChecker+Invalid, 4546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1416 IncrementalHoareTripleChecker+Valid, 3130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:54,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2543 Valid, 2858 Invalid, 4546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1416 Valid, 3130 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-20 09:27:54,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2022-11-20 09:27:54,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1665. [2022-11-20 09:27:54,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1073 states have (on average 1.1910531220876048) internal successors, (1278), 1128 states have internal predecessors, (1278), 443 states have call successors, (443), 124 states have call predecessors, (443), 121 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:27:54,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2163 transitions. [2022-11-20 09:27:54,459 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2163 transitions. Word has length 64 [2022-11-20 09:27:54,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:54,461 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 2163 transitions. [2022-11-20 09:27:54,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 09:27:54,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2163 transitions. [2022-11-20 09:27:54,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-20 09:27:54,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:54,474 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 09:27:54,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:27:54,476 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:27:54,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:54,477 INFO L85 PathProgramCache]: Analyzing trace with hash -440956411, now seen corresponding path program 1 times [2022-11-20 09:27:54,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:54,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138814519] [2022-11-20 09:27:54,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:54,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:54,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:27:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:54,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:27:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:54,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:27:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:54,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:27:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:54,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:27:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:54,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:27:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:54,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:27:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:54,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:27:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:55,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:27:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:55,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:27:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:55,023 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:27:55,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:55,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138814519] [2022-11-20 09:27:55,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138814519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:55,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:55,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:27:55,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012781385] [2022-11-20 09:27:55,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:55,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:55,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:55,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:55,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:55,027 INFO L87 Difference]: Start difference. First operand 1665 states and 2163 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 09:27:57,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:57,650 INFO L93 Difference]: Finished difference Result 1665 states and 2163 transitions. [2022-11-20 09:27:57,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:27:57,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 70 [2022-11-20 09:27:57,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:57,667 INFO L225 Difference]: With dead ends: 1665 [2022-11-20 09:27:57,667 INFO L226 Difference]: Without dead ends: 1663 [2022-11-20 09:27:57,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:27:57,672 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1651 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1791 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:57,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1791 Valid, 1681 Invalid, 2521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1645 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 09:27:57,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2022-11-20 09:27:57,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1663. [2022-11-20 09:27:57,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1072 states have (on average 1.1902985074626866) internal successors, (1276), 1126 states have internal predecessors, (1276), 443 states have call successors, (443), 124 states have call predecessors, (443), 121 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:27:57,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2161 transitions. [2022-11-20 09:27:57,838 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2161 transitions. Word has length 70 [2022-11-20 09:27:57,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:57,841 INFO L495 AbstractCegarLoop]: Abstraction has 1663 states and 2161 transitions. [2022-11-20 09:27:57,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 09:27:57,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2161 transitions. [2022-11-20 09:27:57,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-20 09:27:57,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:57,846 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 09:27:57,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:27:57,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:27:57,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:57,847 INFO L85 PathProgramCache]: Analyzing trace with hash -2018737495, now seen corresponding path program 1 times [2022-11-20 09:27:57,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:57,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728717896] [2022-11-20 09:27:57,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:57,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:58,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:27:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:58,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:27:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:58,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:27:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:58,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:27:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:58,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:27:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:58,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:27:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:58,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:27:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:58,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:27:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:58,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:27:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:58,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:27:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:58,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:27:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:58,370 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:27:58,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:58,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728717896] [2022-11-20 09:27:58,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728717896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:58,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:58,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:27:58,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753018431] [2022-11-20 09:27:58,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:58,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:58,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:58,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:58,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:58,373 INFO L87 Difference]: Start difference. First operand 1663 states and 2161 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 09:28:00,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:00,757 INFO L93 Difference]: Finished difference Result 1663 states and 2161 transitions. [2022-11-20 09:28:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:00,758 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2022-11-20 09:28:00,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:00,767 INFO L225 Difference]: With dead ends: 1663 [2022-11-20 09:28:00,767 INFO L226 Difference]: Without dead ends: 1661 [2022-11-20 09:28:00,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:00,771 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1645 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:00,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 1681 Invalid, 2517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 09:28:00,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2022-11-20 09:28:00,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1661. [2022-11-20 09:28:00,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1071 states have (on average 1.1895424836601307) internal successors, (1274), 1124 states have internal predecessors, (1274), 443 states have call successors, (443), 124 states have call predecessors, (443), 121 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:00,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2159 transitions. [2022-11-20 09:28:00,887 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2159 transitions. Word has length 76 [2022-11-20 09:28:00,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:00,888 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2159 transitions. [2022-11-20 09:28:00,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 09:28:00,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2159 transitions. [2022-11-20 09:28:00,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-20 09:28:00,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:00,891 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 09:28:00,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:28:00,892 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:00,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:00,892 INFO L85 PathProgramCache]: Analyzing trace with hash 477243310, now seen corresponding path program 1 times [2022-11-20 09:28:00,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:00,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724415587] [2022-11-20 09:28:00,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:00,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:01,286 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:01,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:01,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724415587] [2022-11-20 09:28:01,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724415587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:01,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:01,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:01,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723464436] [2022-11-20 09:28:01,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:01,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:01,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:01,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:01,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:01,290 INFO L87 Difference]: Start difference. First operand 1661 states and 2159 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:28:03,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:03,883 INFO L93 Difference]: Finished difference Result 1661 states and 2159 transitions. [2022-11-20 09:28:03,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:03,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2022-11-20 09:28:03,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:03,893 INFO L225 Difference]: With dead ends: 1661 [2022-11-20 09:28:03,894 INFO L226 Difference]: Without dead ends: 1659 [2022-11-20 09:28:03,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:03,896 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1639 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:03,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1777 Valid, 1681 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 09:28:03,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-11-20 09:28:04,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1659. [2022-11-20 09:28:04,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1659 states, 1070 states have (on average 1.188785046728972) internal successors, (1272), 1122 states have internal predecessors, (1272), 443 states have call successors, (443), 124 states have call predecessors, (443), 121 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:04,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2157 transitions. [2022-11-20 09:28:04,013 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2157 transitions. Word has length 82 [2022-11-20 09:28:04,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:04,014 INFO L495 AbstractCegarLoop]: Abstraction has 1659 states and 2157 transitions. [2022-11-20 09:28:04,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:28:04,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2157 transitions. [2022-11-20 09:28:04,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-20 09:28:04,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:04,015 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 09:28:04,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:28:04,016 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:04,016 INFO L85 PathProgramCache]: Analyzing trace with hash 651406996, now seen corresponding path program 1 times [2022-11-20 09:28:04,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:04,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336365959] [2022-11-20 09:28:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:04,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,426 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:04,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:04,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336365959] [2022-11-20 09:28:04,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336365959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:04,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:04,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:04,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282095347] [2022-11-20 09:28:04,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:04,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:04,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:04,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:04,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:04,428 INFO L87 Difference]: Start difference. First operand 1659 states and 2157 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 09:28:06,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:06,796 INFO L93 Difference]: Finished difference Result 1659 states and 2157 transitions. [2022-11-20 09:28:06,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:06,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 88 [2022-11-20 09:28:06,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:06,808 INFO L225 Difference]: With dead ends: 1659 [2022-11-20 09:28:06,808 INFO L226 Difference]: Without dead ends: 1657 [2022-11-20 09:28:06,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:06,811 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1633 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:06,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 1681 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1633 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 09:28:06,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2022-11-20 09:28:06,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1657. [2022-11-20 09:28:07,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1069 states have (on average 1.1880261927034612) internal successors, (1270), 1120 states have internal predecessors, (1270), 443 states have call successors, (443), 124 states have call predecessors, (443), 121 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:07,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2155 transitions. [2022-11-20 09:28:07,011 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2155 transitions. Word has length 88 [2022-11-20 09:28:07,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:07,013 INFO L495 AbstractCegarLoop]: Abstraction has 1657 states and 2155 transitions. [2022-11-20 09:28:07,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 09:28:07,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2155 transitions. [2022-11-20 09:28:07,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 09:28:07,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:07,016 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:07,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:28:07,016 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:07,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:07,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1770861635, now seen corresponding path program 1 times [2022-11-20 09:28:07,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:07,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978729772] [2022-11-20 09:28:07,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:07,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 09:28:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 09:28:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 09:28:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 09:28:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 09:28:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 09:28:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-20 09:28:07,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:07,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978729772] [2022-11-20 09:28:07,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978729772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:07,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:07,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 09:28:07,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85428995] [2022-11-20 09:28:07,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:07,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 09:28:07,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:07,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 09:28:07,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:28:07,732 INFO L87 Difference]: Start difference. First operand 1657 states and 2155 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 09:28:11,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:11,757 INFO L93 Difference]: Finished difference Result 3407 states and 4462 transitions. [2022-11-20 09:28:11,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 09:28:11,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2022-11-20 09:28:11,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:11,768 INFO L225 Difference]: With dead ends: 3407 [2022-11-20 09:28:11,768 INFO L226 Difference]: Without dead ends: 1771 [2022-11-20 09:28:11,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-11-20 09:28:11,775 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 2015 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 3645 mSolverCounterSat, 1305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 4950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1305 IncrementalHoareTripleChecker+Valid, 3645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:11,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 2828 Invalid, 4950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1305 Valid, 3645 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-20 09:28:11,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2022-11-20 09:28:11,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1675. [2022-11-20 09:28:11,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1081 states have (on average 1.1840888066604995) internal successors, (1280), 1132 states have internal predecessors, (1280), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:11,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 2165 transitions. [2022-11-20 09:28:11,917 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 2165 transitions. Word has length 116 [2022-11-20 09:28:11,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:11,917 INFO L495 AbstractCegarLoop]: Abstraction has 1675 states and 2165 transitions. [2022-11-20 09:28:11,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 09:28:11,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 2165 transitions. [2022-11-20 09:28:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 09:28:11,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:11,920 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:11,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:28:11,921 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:11,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:11,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1770802053, now seen corresponding path program 1 times [2022-11-20 09:28:11,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:11,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142736857] [2022-11-20 09:28:11,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:11,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 09:28:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 09:28:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 09:28:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 09:28:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 09:28:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 09:28:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-20 09:28:12,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:12,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142736857] [2022-11-20 09:28:12,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142736857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:12,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:12,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:28:12,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883232857] [2022-11-20 09:28:12,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:12,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:28:12,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:12,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:28:12,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:28:12,436 INFO L87 Difference]: Start difference. First operand 1675 states and 2165 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-20 09:28:15,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:15,630 INFO L93 Difference]: Finished difference Result 1771 states and 2318 transitions. [2022-11-20 09:28:15,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 09:28:15,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 116 [2022-11-20 09:28:15,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:15,640 INFO L225 Difference]: With dead ends: 1771 [2022-11-20 09:28:15,640 INFO L226 Difference]: Without dead ends: 1769 [2022-11-20 09:28:15,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:28:15,643 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1213 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 2707 mSolverCounterSat, 1076 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 3783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1076 IncrementalHoareTripleChecker+Valid, 2707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:15,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 2437 Invalid, 3783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1076 Valid, 2707 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 09:28:15,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2022-11-20 09:28:15,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1673. [2022-11-20 09:28:15,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1080 states have (on average 1.1824074074074074) internal successors, (1277), 1130 states have internal predecessors, (1277), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:15,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2162 transitions. [2022-11-20 09:28:15,819 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2162 transitions. Word has length 116 [2022-11-20 09:28:15,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:15,819 INFO L495 AbstractCegarLoop]: Abstraction has 1673 states and 2162 transitions. [2022-11-20 09:28:15,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-20 09:28:15,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2162 transitions. [2022-11-20 09:28:15,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 09:28:15,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:15,822 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 09:28:15,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:28:15,822 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:15,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:15,823 INFO L85 PathProgramCache]: Analyzing trace with hash -338254798, now seen corresponding path program 1 times [2022-11-20 09:28:15,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:15,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514608495] [2022-11-20 09:28:15,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:15,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:28:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,169 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:16,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:16,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514608495] [2022-11-20 09:28:16,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514608495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:16,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:16,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:16,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563003372] [2022-11-20 09:28:16,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:16,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:16,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:16,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:16,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:16,171 INFO L87 Difference]: Start difference. First operand 1673 states and 2162 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 09:28:18,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:18,417 INFO L93 Difference]: Finished difference Result 1673 states and 2162 transitions. [2022-11-20 09:28:18,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:18,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2022-11-20 09:28:18,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:18,427 INFO L225 Difference]: With dead ends: 1673 [2022-11-20 09:28:18,427 INFO L226 Difference]: Without dead ends: 1671 [2022-11-20 09:28:18,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:18,429 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1618 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:18,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 1681 Invalid, 2499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:28:18,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-11-20 09:28:18,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1671. [2022-11-20 09:28:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1079 states have (on average 1.1816496756255792) internal successors, (1275), 1128 states have internal predecessors, (1275), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:18,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2160 transitions. [2022-11-20 09:28:18,625 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2160 transitions. Word has length 94 [2022-11-20 09:28:18,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:18,625 INFO L495 AbstractCegarLoop]: Abstraction has 1671 states and 2160 transitions. [2022-11-20 09:28:18,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 09:28:18,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2160 transitions. [2022-11-20 09:28:18,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-20 09:28:18,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:18,628 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:18,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:28:18,629 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:18,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:18,629 INFO L85 PathProgramCache]: Analyzing trace with hash 469953921, now seen corresponding path program 1 times [2022-11-20 09:28:18,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:18,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700450973] [2022-11-20 09:28:18,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:18,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 09:28:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 09:28:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 09:28:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 09:28:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 09:28:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 09:28:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:19,003 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-20 09:28:19,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:19,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700450973] [2022-11-20 09:28:19,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700450973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:19,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:19,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:19,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154389993] [2022-11-20 09:28:19,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:19,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:19,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:19,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:19,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:19,007 INFO L87 Difference]: Start difference. First operand 1671 states and 2160 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 09:28:21,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:21,462 INFO L93 Difference]: Finished difference Result 3411 states and 4453 transitions. [2022-11-20 09:28:21,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:21,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2022-11-20 09:28:21,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:21,472 INFO L225 Difference]: With dead ends: 3411 [2022-11-20 09:28:21,472 INFO L226 Difference]: Without dead ends: 1761 [2022-11-20 09:28:21,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:21,478 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 2025 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 1303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1303 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:21,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2175 Valid, 1517 Invalid, 2522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1303 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 09:28:21,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-11-20 09:28:21,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1665. [2022-11-20 09:28:21,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1074 states have (on average 1.1787709497206704) internal successors, (1266), 1122 states have internal predecessors, (1266), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:21,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2151 transitions. [2022-11-20 09:28:21,636 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2151 transitions. Word has length 120 [2022-11-20 09:28:21,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:21,636 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 2151 transitions. [2022-11-20 09:28:21,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 09:28:21,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2151 transitions. [2022-11-20 09:28:21,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-20 09:28:21,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:21,638 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 09:28:21,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:28:21,639 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:21,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:21,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1596306114, now seen corresponding path program 1 times [2022-11-20 09:28:21,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:21,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648154239] [2022-11-20 09:28:21,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:21,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:21,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:28:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:28:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,972 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:21,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:21,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648154239] [2022-11-20 09:28:21,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648154239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:21,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:21,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:21,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752119137] [2022-11-20 09:28:21,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:21,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:21,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:21,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:21,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:21,975 INFO L87 Difference]: Start difference. First operand 1665 states and 2151 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 09:28:24,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:24,288 INFO L93 Difference]: Finished difference Result 1665 states and 2151 transitions. [2022-11-20 09:28:24,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:24,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 100 [2022-11-20 09:28:24,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:24,297 INFO L225 Difference]: With dead ends: 1665 [2022-11-20 09:28:24,297 INFO L226 Difference]: Without dead ends: 1663 [2022-11-20 09:28:24,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:24,299 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1597 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:24,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 1681 Invalid, 2485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:28:24,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2022-11-20 09:28:24,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1663. [2022-11-20 09:28:24,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1073 states have (on average 1.1780055917986954) internal successors, (1264), 1120 states have internal predecessors, (1264), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:24,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2149 transitions. [2022-11-20 09:28:24,466 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2149 transitions. Word has length 100 [2022-11-20 09:28:24,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:24,467 INFO L495 AbstractCegarLoop]: Abstraction has 1663 states and 2149 transitions. [2022-11-20 09:28:24,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 09:28:24,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2149 transitions. [2022-11-20 09:28:24,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-20 09:28:24,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:24,469 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 09:28:24,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 09:28:24,470 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:24,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:24,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2015945362, now seen corresponding path program 1 times [2022-11-20 09:28:24,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:24,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803901704] [2022-11-20 09:28:24,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:24,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:28:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:28:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:24,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:24,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803901704] [2022-11-20 09:28:24,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803901704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:24,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:24,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:24,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902410449] [2022-11-20 09:28:24,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:24,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:24,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:24,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:24,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:24,818 INFO L87 Difference]: Start difference. First operand 1663 states and 2149 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (17), 4 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 09:28:27,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:27,164 INFO L93 Difference]: Finished difference Result 1663 states and 2149 transitions. [2022-11-20 09:28:27,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:27,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (17), 4 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 106 [2022-11-20 09:28:27,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:27,175 INFO L225 Difference]: With dead ends: 1663 [2022-11-20 09:28:27,175 INFO L226 Difference]: Without dead ends: 1661 [2022-11-20 09:28:27,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:27,177 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1595 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:27,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 1681 Invalid, 2477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 09:28:27,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2022-11-20 09:28:27,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1661. [2022-11-20 09:28:27,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1072 states have (on average 1.1772388059701493) internal successors, (1262), 1118 states have internal predecessors, (1262), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:27,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2147 transitions. [2022-11-20 09:28:27,352 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2147 transitions. Word has length 106 [2022-11-20 09:28:27,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:27,352 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2147 transitions. [2022-11-20 09:28:27,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (17), 4 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 09:28:27,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2147 transitions. [2022-11-20 09:28:27,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-20 09:28:27,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:27,354 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 09:28:27,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 09:28:27,355 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:27,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:27,355 INFO L85 PathProgramCache]: Analyzing trace with hash -293105775, now seen corresponding path program 1 times [2022-11-20 09:28:27,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:27,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338121639] [2022-11-20 09:28:27,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:27,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:28:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:28:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,737 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:27,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:27,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338121639] [2022-11-20 09:28:27,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338121639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:27,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:27,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:27,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934889759] [2022-11-20 09:28:27,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:27,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:27,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:27,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:27,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:27,755 INFO L87 Difference]: Start difference. First operand 1661 states and 2147 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 4 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 09:28:30,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:30,070 INFO L93 Difference]: Finished difference Result 1661 states and 2147 transitions. [2022-11-20 09:28:30,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:30,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 4 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 108 [2022-11-20 09:28:30,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:30,078 INFO L225 Difference]: With dead ends: 1661 [2022-11-20 09:28:30,078 INFO L226 Difference]: Without dead ends: 1659 [2022-11-20 09:28:30,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:30,080 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1583 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:30,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 1681 Invalid, 2477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:28:30,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-11-20 09:28:30,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1659. [2022-11-20 09:28:30,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1659 states, 1071 states have (on average 1.1764705882352942) internal successors, (1260), 1116 states have internal predecessors, (1260), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:30,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2145 transitions. [2022-11-20 09:28:30,262 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2145 transitions. Word has length 108 [2022-11-20 09:28:30,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:30,263 INFO L495 AbstractCegarLoop]: Abstraction has 1659 states and 2145 transitions. [2022-11-20 09:28:30,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 4 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 09:28:30,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2145 transitions. [2022-11-20 09:28:30,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-20 09:28:30,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:30,265 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 09:28:30,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 09:28:30,265 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:30,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:30,266 INFO L85 PathProgramCache]: Analyzing trace with hash 202025690, now seen corresponding path program 1 times [2022-11-20 09:28:30,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:30,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378612589] [2022-11-20 09:28:30,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:30,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:28:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:28:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:28:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,719 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:30,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:30,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378612589] [2022-11-20 09:28:30,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378612589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:30,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:30,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:30,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641651363] [2022-11-20 09:28:30,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:30,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:30,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:30,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:30,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:30,722 INFO L87 Difference]: Start difference. First operand 1659 states and 2145 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 09:28:33,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:33,092 INFO L93 Difference]: Finished difference Result 1659 states and 2145 transitions. [2022-11-20 09:28:33,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:33,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 114 [2022-11-20 09:28:33,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:33,098 INFO L225 Difference]: With dead ends: 1659 [2022-11-20 09:28:33,099 INFO L226 Difference]: Without dead ends: 1657 [2022-11-20 09:28:33,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:33,101 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1579 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:33,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 1681 Invalid, 2473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 09:28:33,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2022-11-20 09:28:33,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1657. [2022-11-20 09:28:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1070 states have (on average 1.1757009345794394) internal successors, (1258), 1114 states have internal predecessors, (1258), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2143 transitions. [2022-11-20 09:28:33,320 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2143 transitions. Word has length 114 [2022-11-20 09:28:33,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:33,320 INFO L495 AbstractCegarLoop]: Abstraction has 1657 states and 2143 transitions. [2022-11-20 09:28:33,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 09:28:33,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2143 transitions. [2022-11-20 09:28:33,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-20 09:28:33,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:33,322 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 09:28:33,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 09:28:33,323 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:33,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:33,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1867984116, now seen corresponding path program 1 times [2022-11-20 09:28:33,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:33,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696158657] [2022-11-20 09:28:33,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:33,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:28:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:28:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:28:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:28:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:33,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:33,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696158657] [2022-11-20 09:28:33,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696158657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:33,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:33,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:33,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702350368] [2022-11-20 09:28:33,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:33,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:33,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:33,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:33,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:33,682 INFO L87 Difference]: Start difference. First operand 1657 states and 2143 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 09:28:35,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:35,934 INFO L93 Difference]: Finished difference Result 1657 states and 2143 transitions. [2022-11-20 09:28:35,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:35,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 120 [2022-11-20 09:28:35,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:35,942 INFO L225 Difference]: With dead ends: 1657 [2022-11-20 09:28:35,942 INFO L226 Difference]: Without dead ends: 1655 [2022-11-20 09:28:35,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:35,943 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1573 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:35,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1705 Valid, 1681 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:28:35,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2022-11-20 09:28:36,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1655. [2022-11-20 09:28:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1069 states have (on average 1.174929840972872) internal successors, (1256), 1112 states have internal predecessors, (1256), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:36,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 2141 transitions. [2022-11-20 09:28:36,155 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 2141 transitions. Word has length 120 [2022-11-20 09:28:36,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:36,155 INFO L495 AbstractCegarLoop]: Abstraction has 1655 states and 2141 transitions. [2022-11-20 09:28:36,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 09:28:36,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 2141 transitions. [2022-11-20 09:28:36,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-20 09:28:36,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:36,158 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 09:28:36,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 09:28:36,159 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:36,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:36,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1468254686, now seen corresponding path program 1 times [2022-11-20 09:28:36,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:36,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895652580] [2022-11-20 09:28:36,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:36,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:28:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:28:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:28:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:28:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 09:28:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,525 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:36,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:36,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895652580] [2022-11-20 09:28:36,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895652580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:36,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:36,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:36,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330646196] [2022-11-20 09:28:36,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:36,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:36,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:36,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:36,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:36,528 INFO L87 Difference]: Start difference. First operand 1655 states and 2141 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 09:28:38,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:38,780 INFO L93 Difference]: Finished difference Result 1655 states and 2141 transitions. [2022-11-20 09:28:38,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:38,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 126 [2022-11-20 09:28:38,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:38,788 INFO L225 Difference]: With dead ends: 1655 [2022-11-20 09:28:38,788 INFO L226 Difference]: Without dead ends: 1653 [2022-11-20 09:28:38,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:38,790 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 1567 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:38,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1698 Valid, 1681 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1589 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:28:38,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2022-11-20 09:28:39,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1653. [2022-11-20 09:28:39,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1068 states have (on average 1.1741573033707866) internal successors, (1254), 1110 states have internal predecessors, (1254), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:39,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2139 transitions. [2022-11-20 09:28:39,018 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2139 transitions. Word has length 126 [2022-11-20 09:28:39,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:39,019 INFO L495 AbstractCegarLoop]: Abstraction has 1653 states and 2139 transitions. [2022-11-20 09:28:39,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 09:28:39,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2139 transitions. [2022-11-20 09:28:39,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 09:28:39,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:39,022 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:39,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 09:28:39,023 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:39,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:39,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1982644496, now seen corresponding path program 1 times [2022-11-20 09:28:39,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:39,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563624390] [2022-11-20 09:28:39,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:39,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 09:28:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 09:28:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 09:28:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 09:28:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 09:28:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 09:28:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 09:28:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:28:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,375 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-11-20 09:28:39,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:39,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563624390] [2022-11-20 09:28:39,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563624390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:39,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:39,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:28:39,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618935181] [2022-11-20 09:28:39,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:39,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:28:39,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:39,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:28:39,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:28:39,380 INFO L87 Difference]: Start difference. First operand 1653 states and 2139 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 09:28:42,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:42,133 INFO L93 Difference]: Finished difference Result 3381 states and 4401 transitions. [2022-11-20 09:28:42,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:42,134 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2022-11-20 09:28:42,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:42,143 INFO L225 Difference]: With dead ends: 3381 [2022-11-20 09:28:42,143 INFO L226 Difference]: Without dead ends: 1749 [2022-11-20 09:28:42,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-20 09:28:42,149 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 2312 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 1628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2466 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 2991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1628 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:42,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2466 Valid, 1346 Invalid, 2991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1628 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 09:28:42,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2022-11-20 09:28:42,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1647. [2022-11-20 09:28:42,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1063 states have (on average 1.1712135465663218) internal successors, (1245), 1104 states have internal predecessors, (1245), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:42,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2130 transitions. [2022-11-20 09:28:42,364 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2130 transitions. Word has length 149 [2022-11-20 09:28:42,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:42,366 INFO L495 AbstractCegarLoop]: Abstraction has 1647 states and 2130 transitions. [2022-11-20 09:28:42,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 09:28:42,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2130 transitions. [2022-11-20 09:28:42,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-20 09:28:42,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:42,369 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:42,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 09:28:42,370 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:42,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:42,370 INFO L85 PathProgramCache]: Analyzing trace with hash -728114450, now seen corresponding path program 1 times [2022-11-20 09:28:42,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:42,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11144192] [2022-11-20 09:28:42,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:42,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:28:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:28:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:28:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:28:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 09:28:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 09:28:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:42,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:42,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11144192] [2022-11-20 09:28:42,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11144192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:42,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:42,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:42,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569546042] [2022-11-20 09:28:42,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:42,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:42,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:42,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:42,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:42,746 INFO L87 Difference]: Start difference. First operand 1647 states and 2130 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 09:28:45,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:45,134 INFO L93 Difference]: Finished difference Result 1647 states and 2130 transitions. [2022-11-20 09:28:45,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:45,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 132 [2022-11-20 09:28:45,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:45,154 INFO L225 Difference]: With dead ends: 1647 [2022-11-20 09:28:45,160 INFO L226 Difference]: Without dead ends: 1645 [2022-11-20 09:28:45,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:45,161 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 1556 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 2460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:45,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1686 Valid, 1662 Invalid, 2460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:28:45,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2022-11-20 09:28:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1645. [2022-11-20 09:28:45,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1062 states have (on average 1.170433145009416) internal successors, (1243), 1102 states have internal predecessors, (1243), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:45,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2128 transitions. [2022-11-20 09:28:45,387 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2128 transitions. Word has length 132 [2022-11-20 09:28:45,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:45,388 INFO L495 AbstractCegarLoop]: Abstraction has 1645 states and 2128 transitions. [2022-11-20 09:28:45,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 09:28:45,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2128 transitions. [2022-11-20 09:28:45,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-20 09:28:45,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:45,391 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:45,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 09:28:45,391 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:45,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:45,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1829579903, now seen corresponding path program 1 times [2022-11-20 09:28:45,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:45,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930598737] [2022-11-20 09:28:45,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:45,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 09:28:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 09:28:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 09:28:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:28:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:28:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 09:28:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 09:28:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 09:28:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 09:28:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:28:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 09:28:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,863 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-20 09:28:45,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:45,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930598737] [2022-11-20 09:28:45,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930598737] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:28:45,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863096193] [2022-11-20 09:28:45,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:45,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:28:45,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:45,874 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:28:45,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 09:28:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:46,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:46,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:46,757 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-20 09:28:46,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:46,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863096193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:46,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:28:46,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-11-20 09:28:46,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965786780] [2022-11-20 09:28:46,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:46,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:46,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:46,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:46,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 09:28:46,761 INFO L87 Difference]: Start difference. First operand 1645 states and 2128 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 09:28:47,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:47,108 INFO L93 Difference]: Finished difference Result 3263 states and 4218 transitions. [2022-11-20 09:28:47,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:47,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2022-11-20 09:28:47,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:47,118 INFO L225 Difference]: With dead ends: 3263 [2022-11-20 09:28:47,119 INFO L226 Difference]: Without dead ends: 1639 [2022-11-20 09:28:47,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 09:28:47,125 INFO L413 NwaCegarLoop]: 1164 mSDtfsCounter, 1109 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:47,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 1164 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:28:47,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-11-20 09:28:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1639. [2022-11-20 09:28:47,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1057 states have (on average 1.1674550614947965) internal successors, (1234), 1096 states have internal predecessors, (1234), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:47,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2119 transitions. [2022-11-20 09:28:47,320 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2119 transitions. Word has length 155 [2022-11-20 09:28:47,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:47,321 INFO L495 AbstractCegarLoop]: Abstraction has 1639 states and 2119 transitions. [2022-11-20 09:28:47,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 09:28:47,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2119 transitions. [2022-11-20 09:28:47,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-20 09:28:47,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:47,323 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 09:28:47,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:47,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 09:28:47,540 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:47,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:47,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1582334756, now seen corresponding path program 1 times [2022-11-20 09:28:47,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:47,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861352384] [2022-11-20 09:28:47,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:47,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:28:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:28:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:28:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:28:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 09:28:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 09:28:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 09:28:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,977 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:47,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:47,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861352384] [2022-11-20 09:28:47,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861352384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:47,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:47,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:47,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596148254] [2022-11-20 09:28:47,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:47,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:47,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:47,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:47,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:47,981 INFO L87 Difference]: Start difference. First operand 1639 states and 2119 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 09:28:50,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:50,496 INFO L93 Difference]: Finished difference Result 1639 states and 2119 transitions. [2022-11-20 09:28:50,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:50,497 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2022-11-20 09:28:50,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:50,504 INFO L225 Difference]: With dead ends: 1639 [2022-11-20 09:28:50,504 INFO L226 Difference]: Without dead ends: 1637 [2022-11-20 09:28:50,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:50,507 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1545 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:50,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 1643 Invalid, 2455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 09:28:50,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2022-11-20 09:28:50,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1637. [2022-11-20 09:28:50,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1637 states, 1056 states have (on average 1.1666666666666667) internal successors, (1232), 1094 states have internal predecessors, (1232), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:50,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1637 states and 2117 transitions. [2022-11-20 09:28:50,789 INFO L78 Accepts]: Start accepts. Automaton has 1637 states and 2117 transitions. Word has length 138 [2022-11-20 09:28:50,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:50,789 INFO L495 AbstractCegarLoop]: Abstraction has 1637 states and 2117 transitions. [2022-11-20 09:28:50,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 09:28:50,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1637 states and 2117 transitions. [2022-11-20 09:28:50,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-20 09:28:50,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:50,793 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:50,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 09:28:50,794 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:50,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:50,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1548139601, now seen corresponding path program 1 times [2022-11-20 09:28:50,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:50,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016031278] [2022-11-20 09:28:50,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:50,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:28:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:28:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:28:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:28:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 09:28:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 09:28:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 09:28:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 09:28:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,324 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:51,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:51,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016031278] [2022-11-20 09:28:51,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016031278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:51,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:51,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:51,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594631577] [2022-11-20 09:28:51,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:51,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:51,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:51,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:51,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:51,327 INFO L87 Difference]: Start difference. First operand 1637 states and 2117 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 09:28:53,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:53,889 INFO L93 Difference]: Finished difference Result 1637 states and 2117 transitions. [2022-11-20 09:28:53,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:53,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 144 [2022-11-20 09:28:53,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:53,897 INFO L225 Difference]: With dead ends: 1637 [2022-11-20 09:28:53,897 INFO L226 Difference]: Without dead ends: 1635 [2022-11-20 09:28:53,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:53,901 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1539 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:53,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 1643 Invalid, 2451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 09:28:53,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2022-11-20 09:28:54,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1635. [2022-11-20 09:28:54,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1055 states have (on average 1.1658767772511849) internal successors, (1230), 1092 states have internal predecessors, (1230), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:54,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2115 transitions. [2022-11-20 09:28:54,192 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2115 transitions. Word has length 144 [2022-11-20 09:28:54,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:54,193 INFO L495 AbstractCegarLoop]: Abstraction has 1635 states and 2115 transitions. [2022-11-20 09:28:54,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 09:28:54,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2115 transitions. [2022-11-20 09:28:54,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-20 09:28:54,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:54,196 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:54,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 09:28:54,197 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:54,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:54,197 INFO L85 PathProgramCache]: Analyzing trace with hash -143996287, now seen corresponding path program 1 times [2022-11-20 09:28:54,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:54,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486985161] [2022-11-20 09:28:54,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:54,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:28:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:28:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:28:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:28:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 09:28:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 09:28:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 09:28:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 09:28:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 09:28:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:54,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:54,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486985161] [2022-11-20 09:28:54,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486985161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:54,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:54,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:54,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413301018] [2022-11-20 09:28:54,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:54,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:54,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:54,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:54,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:54,928 INFO L87 Difference]: Start difference. First operand 1635 states and 2115 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 09:28:57,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:57,266 INFO L93 Difference]: Finished difference Result 1635 states and 2115 transitions. [2022-11-20 09:28:57,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:57,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 150 [2022-11-20 09:28:57,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:57,273 INFO L225 Difference]: With dead ends: 1635 [2022-11-20 09:28:57,273 INFO L226 Difference]: Without dead ends: 1633 [2022-11-20 09:28:57,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:57,275 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1533 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:57,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 1643 Invalid, 2447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:28:57,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2022-11-20 09:28:57,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2022-11-20 09:28:57,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1054 states have (on average 1.1650853889943074) internal successors, (1228), 1090 states have internal predecessors, (1228), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:28:57,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2113 transitions. [2022-11-20 09:28:57,509 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2113 transitions. Word has length 150 [2022-11-20 09:28:57,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:57,510 INFO L495 AbstractCegarLoop]: Abstraction has 1633 states and 2113 transitions. [2022-11-20 09:28:57,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 09:28:57,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2113 transitions. [2022-11-20 09:28:57,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-20 09:28:57,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:57,513 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:57,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 09:28:57,514 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:28:57,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:57,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1326466481, now seen corresponding path program 1 times [2022-11-20 09:28:57,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:57,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948529588] [2022-11-20 09:28:57,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:57,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:28:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:28:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:28:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:28:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:28:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:28:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:28:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:28:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:28:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:28:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:28:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:28:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:28:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:28:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:28:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:28:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:28:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:28:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 09:28:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 09:28:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 09:28:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 09:28:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 09:28:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 09:28:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:28:57,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:57,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948529588] [2022-11-20 09:28:57,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948529588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:57,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:57,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:28:57,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065070939] [2022-11-20 09:28:57,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:57,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:57,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:57,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:57,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:57,960 INFO L87 Difference]: Start difference. First operand 1633 states and 2113 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 09:29:00,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:00,319 INFO L93 Difference]: Finished difference Result 1633 states and 2113 transitions. [2022-11-20 09:29:00,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:29:00,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 156 [2022-11-20 09:29:00,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:00,325 INFO L225 Difference]: With dead ends: 1633 [2022-11-20 09:29:00,326 INFO L226 Difference]: Without dead ends: 1631 [2022-11-20 09:29:00,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:29:00,327 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1527 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:00,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 1643 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:29:00,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2022-11-20 09:29:00,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2022-11-20 09:29:00,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1053 states have (on average 1.1642924976258309) internal successors, (1226), 1088 states have internal predecessors, (1226), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:29:00,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2111 transitions. [2022-11-20 09:29:00,611 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2111 transitions. Word has length 156 [2022-11-20 09:29:00,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:00,611 INFO L495 AbstractCegarLoop]: Abstraction has 1631 states and 2111 transitions. [2022-11-20 09:29:00,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 09:29:00,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2111 transitions. [2022-11-20 09:29:00,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-20 09:29:00,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:00,614 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:00,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 09:29:00,615 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:00,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:00,615 INFO L85 PathProgramCache]: Analyzing trace with hash 689363731, now seen corresponding path program 1 times [2022-11-20 09:29:00,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:00,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432048613] [2022-11-20 09:29:00,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:00,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:29:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:29:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:29:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:29:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:29:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:29:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:29:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:29:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:29:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:29:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:29:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:29:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:29:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:29:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:29:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:29:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:29:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 09:29:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 09:29:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 09:29:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 09:29:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 09:29:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 09:29:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 09:29:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:29:00,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:00,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432048613] [2022-11-20 09:29:00,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432048613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:00,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:00,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:29:00,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987415968] [2022-11-20 09:29:00,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:00,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:29:00,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:00,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:29:00,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:29:00,980 INFO L87 Difference]: Start difference. First operand 1631 states and 2111 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 09:29:03,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:03,252 INFO L93 Difference]: Finished difference Result 1631 states and 2111 transitions. [2022-11-20 09:29:03,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:29:03,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 162 [2022-11-20 09:29:03,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:03,258 INFO L225 Difference]: With dead ends: 1631 [2022-11-20 09:29:03,258 INFO L226 Difference]: Without dead ends: 1629 [2022-11-20 09:29:03,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:29:03,260 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1521 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:03,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1646 Valid, 1643 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 09:29:03,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2022-11-20 09:29:03,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1629. [2022-11-20 09:29:03,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1052 states have (on average 1.1634980988593155) internal successors, (1224), 1086 states have internal predecessors, (1224), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:29:03,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2109 transitions. [2022-11-20 09:29:03,452 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2109 transitions. Word has length 162 [2022-11-20 09:29:03,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:03,453 INFO L495 AbstractCegarLoop]: Abstraction has 1629 states and 2109 transitions. [2022-11-20 09:29:03,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 09:29:03,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2109 transitions. [2022-11-20 09:29:03,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-20 09:29:03,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:03,456 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:03,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 09:29:03,457 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:03,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:03,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1812752292, now seen corresponding path program 1 times [2022-11-20 09:29:03,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:03,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467596345] [2022-11-20 09:29:03,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:03,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:29:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:29:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:29:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:29:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:29:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:29:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:29:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:29:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:29:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:29:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:29:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:29:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:29:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:29:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:29:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:29:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:29:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 09:29:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 09:29:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 09:29:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 09:29:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 09:29:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 09:29:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 09:29:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-20 09:29:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,867 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:29:03,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:03,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467596345] [2022-11-20 09:29:03,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467596345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:03,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:03,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:29:03,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297970174] [2022-11-20 09:29:03,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:03,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:29:03,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:03,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:29:03,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:29:03,871 INFO L87 Difference]: Start difference. First operand 1629 states and 2109 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 09:29:06,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:06,250 INFO L93 Difference]: Finished difference Result 1629 states and 2109 transitions. [2022-11-20 09:29:06,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:29:06,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 168 [2022-11-20 09:29:06,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:06,256 INFO L225 Difference]: With dead ends: 1629 [2022-11-20 09:29:06,256 INFO L226 Difference]: Without dead ends: 1627 [2022-11-20 09:29:06,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:29:06,258 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1515 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:06,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1639 Valid, 1643 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 09:29:06,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-11-20 09:29:06,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1627. [2022-11-20 09:29:06,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1051 states have (on average 1.1627021883920077) internal successors, (1222), 1084 states have internal predecessors, (1222), 443 states have call successors, (443), 130 states have call predecessors, (443), 127 states have return successors, (442), 434 states have call predecessors, (442), 441 states have call successors, (442) [2022-11-20 09:29:06,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2107 transitions. [2022-11-20 09:29:06,495 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2107 transitions. Word has length 168 [2022-11-20 09:29:06,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:06,495 INFO L495 AbstractCegarLoop]: Abstraction has 1627 states and 2107 transitions. [2022-11-20 09:29:06,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 09:29:06,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2107 transitions. [2022-11-20 09:29:06,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-20 09:29:06,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:06,499 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 3, 3, 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, 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] [2022-11-20 09:29:06,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 09:29:06,499 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:06,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:06,500 INFO L85 PathProgramCache]: Analyzing trace with hash -401855305, now seen corresponding path program 1 times [2022-11-20 09:29:06,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:06,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854474385] [2022-11-20 09:29:06,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:06,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:29:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:29:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:29:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 09:29:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:29:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:29:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 09:29:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:29:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:29:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 09:29:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:29:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:29:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 09:29:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 09:29:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:29:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 09:29:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 09:29:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:29:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-20 09:29:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 09:29:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:29:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-20 09:29:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-20 09:29:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,438 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-11-20 09:29:07,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:07,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854474385] [2022-11-20 09:29:07,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854474385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:07,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:07,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 09:29:07,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050128110] [2022-11-20 09:29:07,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:07,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:29:07,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:07,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:29:07,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:29:07,441 INFO L87 Difference]: Start difference. First operand 1627 states and 2107 transitions. Second operand has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (24), 7 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 09:29:17,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:17,929 INFO L93 Difference]: Finished difference Result 2824 states and 3655 transitions. [2022-11-20 09:29:17,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 09:29:17,930 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (24), 7 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 217 [2022-11-20 09:29:17,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:17,937 INFO L225 Difference]: With dead ends: 2824 [2022-11-20 09:29:17,937 INFO L226 Difference]: Without dead ends: 2822 [2022-11-20 09:29:17,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=368, Invalid=1114, Unknown=0, NotChecked=0, Total=1482 [2022-11-20 09:29:17,939 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 6525 mSDsluCounter, 4579 mSDsCounter, 0 mSdLazyCounter, 8764 mSolverCounterSat, 5200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6813 SdHoareTripleChecker+Valid, 5599 SdHoareTripleChecker+Invalid, 13964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5200 IncrementalHoareTripleChecker+Valid, 8764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:17,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6813 Valid, 5599 Invalid, 13964 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5200 Valid, 8764 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-11-20 09:29:17,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2022-11-20 09:29:18,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2352. [2022-11-20 09:29:18,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 1521 states have (on average 1.1669953977646286) internal successors, (1775), 1570 states have internal predecessors, (1775), 642 states have call successors, (642), 185 states have call predecessors, (642), 183 states have return successors, (642), 628 states have call predecessors, (642), 640 states have call successors, (642) [2022-11-20 09:29:18,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3059 transitions. [2022-11-20 09:29:18,364 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3059 transitions. Word has length 217 [2022-11-20 09:29:18,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:18,364 INFO L495 AbstractCegarLoop]: Abstraction has 2352 states and 3059 transitions. [2022-11-20 09:29:18,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (24), 7 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 09:29:18,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3059 transitions. [2022-11-20 09:29:18,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-20 09:29:18,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:18,368 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 3, 3, 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, 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] [2022-11-20 09:29:18,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 09:29:18,368 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:18,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:18,369 INFO L85 PathProgramCache]: Analyzing trace with hash 951454392, now seen corresponding path program 1 times [2022-11-20 09:29:18,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:18,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910019870] [2022-11-20 09:29:18,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:18,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:29:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:29:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:29:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 09:29:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:29:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:29:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 09:29:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:29:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:29:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 09:29:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:29:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:29:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 09:29:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 09:29:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:29:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 09:29:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 09:29:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:29:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-20 09:29:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 09:29:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:29:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-20 09:29:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-20 09:29:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,925 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-11-20 09:29:19,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:19,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910019870] [2022-11-20 09:29:19,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910019870] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:29:19,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209634935] [2022-11-20 09:29:19,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:19,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:19,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:19,928 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:19,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 09:29:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:20,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 89 conjunts are in the unsatisfiable core [2022-11-20 09:29:20,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:20,939 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-11-20 09:29:20,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:20,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209634935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:20,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:29:20,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 15 [2022-11-20 09:29:20,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64364100] [2022-11-20 09:29:20,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:20,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 09:29:20,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:20,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 09:29:20,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2022-11-20 09:29:20,942 INFO L87 Difference]: Start difference. First operand 2352 states and 3059 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 8 states have internal predecessors, (109), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 09:29:22,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:22,732 INFO L93 Difference]: Finished difference Result 5013 states and 6577 transitions. [2022-11-20 09:29:22,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 09:29:22,733 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 8 states have internal predecessors, (109), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) Word has length 217 [2022-11-20 09:29:22,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:22,743 INFO L225 Difference]: With dead ends: 5013 [2022-11-20 09:29:22,743 INFO L226 Difference]: Without dead ends: 2682 [2022-11-20 09:29:22,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 282 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:29:22,751 INFO L413 NwaCegarLoop]: 1294 mSDtfsCounter, 80 mSDsluCounter, 10202 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 11496 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:22,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 11496 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 09:29:22,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2022-11-20 09:29:23,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2385. [2022-11-20 09:29:23,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 1545 states have (on average 1.164401294498382) internal successors, (1799), 1594 states have internal predecessors, (1799), 645 states have call successors, (645), 185 states have call predecessors, (645), 189 states have return successors, (657), 637 states have call predecessors, (657), 643 states have call successors, (657) [2022-11-20 09:29:23,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3101 transitions. [2022-11-20 09:29:23,228 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3101 transitions. Word has length 217 [2022-11-20 09:29:23,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:23,228 INFO L495 AbstractCegarLoop]: Abstraction has 2385 states and 3101 transitions. [2022-11-20 09:29:23,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 8 states have internal predecessors, (109), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 09:29:23,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3101 transitions. [2022-11-20 09:29:23,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-20 09:29:23,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:23,231 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:23,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:23,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-20 09:29:23,442 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:23,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:23,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2061252148, now seen corresponding path program 1 times [2022-11-20 09:29:23,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:23,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111867420] [2022-11-20 09:29:23,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:23,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:29:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:29:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:29:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:29:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:29:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:29:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:29:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:29:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:29:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:29:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:29:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:29:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:29:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:29:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:29:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:29:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:29:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 09:29:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 09:29:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 09:29:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 09:29:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 09:29:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 09:29:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 09:29:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-20 09:29:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-20 09:29:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:29:23,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:23,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111867420] [2022-11-20 09:29:23,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111867420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:23,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:23,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:29:23,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263884850] [2022-11-20 09:29:23,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:23,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:29:23,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:23,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:29:23,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:29:23,834 INFO L87 Difference]: Start difference. First operand 2385 states and 3101 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 09:29:26,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:26,569 INFO L93 Difference]: Finished difference Result 2385 states and 3101 transitions. [2022-11-20 09:29:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:29:26,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 174 [2022-11-20 09:29:26,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:26,576 INFO L225 Difference]: With dead ends: 2385 [2022-11-20 09:29:26,576 INFO L226 Difference]: Without dead ends: 2383 [2022-11-20 09:29:26,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:29:26,577 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1509 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:26,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 1643 Invalid, 2431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 09:29:26,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2022-11-20 09:29:26,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2383. [2022-11-20 09:29:26,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2383 states, 1544 states have (on average 1.163860103626943) internal successors, (1797), 1592 states have internal predecessors, (1797), 645 states have call successors, (645), 185 states have call predecessors, (645), 189 states have return successors, (657), 637 states have call predecessors, (657), 643 states have call successors, (657) [2022-11-20 09:29:26,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 3099 transitions. [2022-11-20 09:29:26,912 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 3099 transitions. Word has length 174 [2022-11-20 09:29:26,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:26,913 INFO L495 AbstractCegarLoop]: Abstraction has 2383 states and 3099 transitions. [2022-11-20 09:29:26,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 09:29:26,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 3099 transitions. [2022-11-20 09:29:26,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-20 09:29:26,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:26,916 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:26,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 09:29:26,916 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:26,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:26,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1255257720, now seen corresponding path program 1 times [2022-11-20 09:29:26,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:26,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898769431] [2022-11-20 09:29:26,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:26,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:29:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:29:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:29:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 09:29:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 09:29:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:29:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:29:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 09:29:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 09:29:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 09:29:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-20 09:29:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 09:29:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-20 09:29:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:29:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:29:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 09:29:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-20 09:29:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-20 09:29:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 09:29:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-20 09:29:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 09:29:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 09:29:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 09:29:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 09:29:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-20 09:29:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-20 09:29:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-20 09:29:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 09:29:27,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:27,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898769431] [2022-11-20 09:29:27,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898769431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:27,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:27,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:29:27,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475760210] [2022-11-20 09:29:27,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:27,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:29:27,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:27,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:29:27,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:29:27,373 INFO L87 Difference]: Start difference. First operand 2383 states and 3099 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 09:29:30,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:30,123 INFO L93 Difference]: Finished difference Result 2383 states and 3099 transitions. [2022-11-20 09:29:30,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:29:30,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 180 [2022-11-20 09:29:30,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:30,134 INFO L225 Difference]: With dead ends: 2383 [2022-11-20 09:29:30,134 INFO L226 Difference]: Without dead ends: 2208 [2022-11-20 09:29:30,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:29:30,138 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1500 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:30,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1622 Valid, 1643 Invalid, 2430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 09:29:30,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2022-11-20 09:29:30,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2208. [2022-11-20 09:29:30,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1439 states have (on average 1.173036831132731) internal successors, (1688), 1484 states have internal predecessors, (1688), 596 states have call successors, (596), 165 states have call predecessors, (596), 169 states have return successors, (608), 590 states have call predecessors, (608), 594 states have call successors, (608) [2022-11-20 09:29:30,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 2892 transitions. [2022-11-20 09:29:30,643 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 2892 transitions. Word has length 180 [2022-11-20 09:29:30,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:30,644 INFO L495 AbstractCegarLoop]: Abstraction has 2208 states and 2892 transitions. [2022-11-20 09:29:30,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 09:29:30,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 2892 transitions. [2022-11-20 09:29:30,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-20 09:29:30,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:30,647 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 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, 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] [2022-11-20 09:29:30,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 09:29:30,647 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:30,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:30,648 INFO L85 PathProgramCache]: Analyzing trace with hash -949539292, now seen corresponding path program 1 times [2022-11-20 09:29:30,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:30,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332731917] [2022-11-20 09:29:30,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:30,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:30,720 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:29:30,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739248691] [2022-11-20 09:29:30,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:30,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:30,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:30,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:30,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 09:29:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:31,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 2240 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-20 09:29:31,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:31,809 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-11-20 09:29:31,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:31,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:31,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332731917] [2022-11-20 09:29:31,810 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:29:31,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739248691] [2022-11-20 09:29:31,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739248691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:31,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:31,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 09:29:31,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614513087] [2022-11-20 09:29:31,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:31,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 09:29:31,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:31,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 09:29:31,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:29:31,813 INFO L87 Difference]: Start difference. First operand 2208 states and 2892 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 09:29:32,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:32,389 INFO L93 Difference]: Finished difference Result 4700 states and 6206 transitions. [2022-11-20 09:29:32,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:29:32,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) Word has length 259 [2022-11-20 09:29:32,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:32,398 INFO L225 Difference]: With dead ends: 4700 [2022-11-20 09:29:32,398 INFO L226 Difference]: Without dead ends: 2511 [2022-11-20 09:29:32,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 09:29:32,405 INFO L413 NwaCegarLoop]: 1136 mSDtfsCounter, 88 mSDsluCounter, 7822 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 8958 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:32,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 8958 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:29:32,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2022-11-20 09:29:32,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2235. [2022-11-20 09:29:32,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2235 states, 1460 states have (on average 1.1705479452054794) internal successors, (1709), 1505 states have internal predecessors, (1709), 596 states have call successors, (596), 165 states have call predecessors, (596), 175 states have return successors, (617), 596 states have call predecessors, (617), 594 states have call successors, (617) [2022-11-20 09:29:32,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2922 transitions. [2022-11-20 09:29:32,878 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2922 transitions. Word has length 259 [2022-11-20 09:29:32,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:32,879 INFO L495 AbstractCegarLoop]: Abstraction has 2235 states and 2922 transitions. [2022-11-20 09:29:32,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 09:29:32,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2922 transitions. [2022-11-20 09:29:32,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-20 09:29:32,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:32,882 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 09:29:32,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:33,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-20 09:29:33,094 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:33,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:33,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1603747954, now seen corresponding path program 1 times [2022-11-20 09:29:33,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:33,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34187456] [2022-11-20 09:29:33,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:33,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:29:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:29:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:29:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 09:29:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:29:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:29:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 09:29:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:29:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:29:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 09:29:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:29:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:29:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 09:29:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-20 09:29:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:29:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 09:29:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 09:29:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:29:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 09:29:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-20 09:29:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-20 09:29:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-20 09:29:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-20 09:29:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-20 09:29:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-20 09:29:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-20 09:29:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:34,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:34,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:34,058 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-11-20 09:29:34,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:34,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34187456] [2022-11-20 09:29:34,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34187456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:34,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:34,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 09:29:34,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075802279] [2022-11-20 09:29:34,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:34,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 09:29:34,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:34,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 09:29:34,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:29:34,061 INFO L87 Difference]: Start difference. First operand 2235 states and 2922 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 09:29:37,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:37,724 INFO L93 Difference]: Finished difference Result 2364 states and 3119 transitions. [2022-11-20 09:29:37,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:29:37,725 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 235 [2022-11-20 09:29:37,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:37,735 INFO L225 Difference]: With dead ends: 2364 [2022-11-20 09:29:37,735 INFO L226 Difference]: Without dead ends: 2362 [2022-11-20 09:29:37,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:29:37,738 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 1728 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 1457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1825 SdHoareTripleChecker+Valid, 2212 SdHoareTripleChecker+Invalid, 3689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1457 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:37,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1825 Valid, 2212 Invalid, 3689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1457 Valid, 2232 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 09:29:37,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2022-11-20 09:29:38,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2251. [2022-11-20 09:29:38,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2251 states, 1471 states have (on average 1.167233174711081) internal successors, (1717), 1515 states have internal predecessors, (1717), 596 states have call successors, (596), 171 states have call predecessors, (596), 181 states have return successors, (617), 596 states have call predecessors, (617), 594 states have call successors, (617) [2022-11-20 09:29:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 2930 transitions. [2022-11-20 09:29:38,167 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 2930 transitions. Word has length 235 [2022-11-20 09:29:38,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:38,167 INFO L495 AbstractCegarLoop]: Abstraction has 2251 states and 2930 transitions. [2022-11-20 09:29:38,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (31), 7 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 09:29:38,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 2930 transitions. [2022-11-20 09:29:38,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-20 09:29:38,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:38,170 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 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, 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] [2022-11-20 09:29:38,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 09:29:38,171 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:38,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:38,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1417244552, now seen corresponding path program 1 times [2022-11-20 09:29:38,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:38,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123935865] [2022-11-20 09:29:38,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:38,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:38,250 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:29:38,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1904663989] [2022-11-20 09:29:38,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:38,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:38,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:38,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:38,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 09:29:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:39,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 2292 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-20 09:29:39,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:39,442 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 209 proven. 3 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-11-20 09:29:39,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:29:39,996 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-11-20 09:29:39,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:39,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123935865] [2022-11-20 09:29:39,997 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:29:39,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904663989] [2022-11-20 09:29:39,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904663989] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:29:39,997 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:29:39,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-11-20 09:29:39,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242216636] [2022-11-20 09:29:39,998 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:29:39,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 09:29:39,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:39,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 09:29:40,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-20 09:29:40,000 INFO L87 Difference]: Start difference. First operand 2251 states and 2930 transitions. Second operand has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 12 states have internal predecessors, (160), 5 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (63), 6 states have call predecessors, (63), 5 states have call successors, (63) [2022-11-20 09:29:40,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:40,961 INFO L93 Difference]: Finished difference Result 4487 states and 5839 transitions. [2022-11-20 09:29:40,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:29:40,962 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 12 states have internal predecessors, (160), 5 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (63), 6 states have call predecessors, (63), 5 states have call successors, (63) Word has length 275 [2022-11-20 09:29:40,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:40,968 INFO L225 Difference]: With dead ends: 4487 [2022-11-20 09:29:40,968 INFO L226 Difference]: Without dead ends: 2251 [2022-11-20 09:29:40,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-20 09:29:40,974 INFO L413 NwaCegarLoop]: 967 mSDtfsCounter, 292 mSDsluCounter, 8799 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 9766 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:40,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 9766 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:29:40,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2022-11-20 09:29:41,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 2251. [2022-11-20 09:29:41,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2251 states, 1471 states have (on average 1.1665533650577837) internal successors, (1716), 1514 states have internal predecessors, (1716), 596 states have call successors, (596), 171 states have call predecessors, (596), 181 states have return successors, (617), 596 states have call predecessors, (617), 594 states have call successors, (617) [2022-11-20 09:29:41,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 2929 transitions. [2022-11-20 09:29:41,499 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 2929 transitions. Word has length 275 [2022-11-20 09:29:41,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:41,499 INFO L495 AbstractCegarLoop]: Abstraction has 2251 states and 2929 transitions. [2022-11-20 09:29:41,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 12 states have internal predecessors, (160), 5 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (63), 6 states have call predecessors, (63), 5 states have call successors, (63) [2022-11-20 09:29:41,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 2929 transitions. [2022-11-20 09:29:41,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-20 09:29:41,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:41,502 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 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, 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] [2022-11-20 09:29:41,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:41,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-11-20 09:29:41,714 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:41,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:41,715 INFO L85 PathProgramCache]: Analyzing trace with hash -419154501, now seen corresponding path program 1 times [2022-11-20 09:29:41,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:41,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718015102] [2022-11-20 09:29:41,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:41,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:41,778 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:29:41,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500868212] [2022-11-20 09:29:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:41,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:41,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:41,780 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:41,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 09:29:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:42,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 2310 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-20 09:29:42,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:42,901 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-11-20 09:29:42,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:29:43,518 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-11-20 09:29:43,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:43,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718015102] [2022-11-20 09:29:43,518 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:29:43,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500868212] [2022-11-20 09:29:43,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500868212] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:29:43,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:29:43,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-11-20 09:29:43,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907160605] [2022-11-20 09:29:43,520 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:29:43,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 09:29:43,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:43,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 09:29:43,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-20 09:29:43,522 INFO L87 Difference]: Start difference. First operand 2251 states and 2929 transitions. Second operand has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 5 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (36), 6 states have call predecessors, (36), 5 states have call successors, (36) [2022-11-20 09:29:44,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:44,374 INFO L93 Difference]: Finished difference Result 4220 states and 5461 transitions. [2022-11-20 09:29:44,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:29:44,375 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 5 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (36), 6 states have call predecessors, (36), 5 states have call successors, (36) Word has length 279 [2022-11-20 09:29:44,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:44,382 INFO L225 Difference]: With dead ends: 4220 [2022-11-20 09:29:44,382 INFO L226 Difference]: Without dead ends: 1988 [2022-11-20 09:29:44,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-20 09:29:44,389 INFO L413 NwaCegarLoop]: 973 mSDtfsCounter, 7 mSDsluCounter, 11563 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 12536 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:44,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 12536 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:29:44,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2022-11-20 09:29:44,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1986. [2022-11-20 09:29:44,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1986 states, 1291 states have (on average 1.1518202943454687) internal successors, (1487), 1330 states have internal predecessors, (1487), 523 states have call successors, (523), 161 states have call predecessors, (523), 169 states have return successors, (540), 522 states have call predecessors, (540), 521 states have call successors, (540) [2022-11-20 09:29:44,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2550 transitions. [2022-11-20 09:29:44,858 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2550 transitions. Word has length 279 [2022-11-20 09:29:44,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:44,858 INFO L495 AbstractCegarLoop]: Abstraction has 1986 states and 2550 transitions. [2022-11-20 09:29:44,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 5 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (36), 6 states have call predecessors, (36), 5 states have call successors, (36) [2022-11-20 09:29:44,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2550 transitions. [2022-11-20 09:29:44,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-11-20 09:29:44,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:44,861 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:44,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:45,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:45,073 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:45,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:45,074 INFO L85 PathProgramCache]: Analyzing trace with hash 2147132909, now seen corresponding path program 1 times [2022-11-20 09:29:45,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:45,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562343091] [2022-11-20 09:29:45,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:45,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:29:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:29:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:29:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 09:29:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:29:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:29:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 09:29:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:29:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:29:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:29:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 09:29:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:29:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:29:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:29:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:29:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 09:29:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 09:29:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 09:29:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:29:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-20 09:29:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-20 09:29:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-20 09:29:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 09:29:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-20 09:29:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-20 09:29:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-20 09:29:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-20 09:29:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-20 09:29:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:29:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,773 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-11-20 09:29:45,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:45,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562343091] [2022-11-20 09:29:45,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562343091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:45,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:45,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 09:29:45,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939776492] [2022-11-20 09:29:45,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:45,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 09:29:45,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:45,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 09:29:45,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-20 09:29:45,776 INFO L87 Difference]: Start difference. First operand 1986 states and 2550 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (34), 9 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-20 09:29:50,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:50,050 INFO L93 Difference]: Finished difference Result 2098 states and 2734 transitions. [2022-11-20 09:29:50,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 09:29:50,051 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (34), 9 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 252 [2022-11-20 09:29:50,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:50,059 INFO L225 Difference]: With dead ends: 2098 [2022-11-20 09:29:50,059 INFO L226 Difference]: Without dead ends: 2096 [2022-11-20 09:29:50,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2022-11-20 09:29:50,061 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 1350 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 3209 mSolverCounterSat, 1566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 4775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1566 IncrementalHoareTripleChecker+Valid, 3209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:50,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 3191 Invalid, 4775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1566 Valid, 3209 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-20 09:29:50,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2022-11-20 09:29:50,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1984. [2022-11-20 09:29:50,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1984 states, 1290 states have (on average 1.1496124031007753) internal successors, (1483), 1328 states have internal predecessors, (1483), 523 states have call successors, (523), 161 states have call predecessors, (523), 169 states have return successors, (540), 522 states have call predecessors, (540), 521 states have call successors, (540) [2022-11-20 09:29:50,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2546 transitions. [2022-11-20 09:29:50,588 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2546 transitions. Word has length 252 [2022-11-20 09:29:50,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:50,589 INFO L495 AbstractCegarLoop]: Abstraction has 1984 states and 2546 transitions. [2022-11-20 09:29:50,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (34), 9 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-20 09:29:50,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2546 transitions. [2022-11-20 09:29:50,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-11-20 09:29:50,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:50,597 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:50,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-20 09:29:50,597 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:50,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:50,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1864531422, now seen corresponding path program 1 times [2022-11-20 09:29:50,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:50,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973666879] [2022-11-20 09:29:50,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:50,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:50,667 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:29:50,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [448350917] [2022-11-20 09:29:50,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:50,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:50,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:50,669 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:50,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 09:29:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:51,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 2621 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-20 09:29:51,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:51,869 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 55 proven. 45 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2022-11-20 09:29:51,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:29:52,477 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 55 proven. 45 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2022-11-20 09:29:52,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:52,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973666879] [2022-11-20 09:29:52,477 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:29:52,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448350917] [2022-11-20 09:29:52,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448350917] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:29:52,478 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:29:52,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 20 [2022-11-20 09:29:52,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863259899] [2022-11-20 09:29:52,478 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:29:52,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 09:29:52,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:52,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 09:29:52,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2022-11-20 09:29:52,480 INFO L87 Difference]: Start difference. First operand 1984 states and 2546 transitions. Second operand has 20 states, 19 states have (on average 7.052631578947368) internal successors, (134), 19 states have internal predecessors, (134), 8 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (50), 8 states have call predecessors, (50), 7 states have call successors, (50) [2022-11-20 09:29:53,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:53,410 INFO L93 Difference]: Finished difference Result 1992 states and 2553 transitions. [2022-11-20 09:29:53,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 09:29:53,411 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.052631578947368) internal successors, (134), 19 states have internal predecessors, (134), 8 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (50), 8 states have call predecessors, (50), 7 states have call successors, (50) Word has length 382 [2022-11-20 09:29:53,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:53,417 INFO L225 Difference]: With dead ends: 1992 [2022-11-20 09:29:53,417 INFO L226 Difference]: Without dead ends: 1984 [2022-11-20 09:29:53,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 773 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2022-11-20 09:29:53,419 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 386 mSDsluCounter, 13713 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 14666 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:53,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 14666 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:29:53,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2022-11-20 09:29:53,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1980. [2022-11-20 09:29:53,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1980 states, 1289 states have (on average 1.148176881303336) internal successors, (1480), 1325 states have internal predecessors, (1480), 520 states have call successors, (520), 161 states have call predecessors, (520), 169 states have return successors, (538), 521 states have call predecessors, (538), 519 states have call successors, (538) [2022-11-20 09:29:53,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2538 transitions. [2022-11-20 09:29:53,899 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2538 transitions. Word has length 382 [2022-11-20 09:29:53,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:53,899 INFO L495 AbstractCegarLoop]: Abstraction has 1980 states and 2538 transitions. [2022-11-20 09:29:53,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.052631578947368) internal successors, (134), 19 states have internal predecessors, (134), 8 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (50), 8 states have call predecessors, (50), 7 states have call successors, (50) [2022-11-20 09:29:53,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2538 transitions. [2022-11-20 09:29:53,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-11-20 09:29:53,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:53,907 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:53,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:54,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:54,119 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:54,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:54,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1232652257, now seen corresponding path program 1 times [2022-11-20 09:29:54,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:54,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355211352] [2022-11-20 09:29:54,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:54,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:54,186 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:29:54,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2047438767] [2022-11-20 09:29:54,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:54,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:54,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:54,188 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:54,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 09:29:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:55,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 2606 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-20 09:29:55,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:55,357 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-11-20 09:29:55,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:55,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:55,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355211352] [2022-11-20 09:29:55,358 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:29:55,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047438767] [2022-11-20 09:29:55,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047438767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:55,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:55,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 09:29:55,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534324547] [2022-11-20 09:29:55,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:55,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 09:29:55,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:55,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 09:29:55,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:29:55,361 INFO L87 Difference]: Start difference. First operand 1980 states and 2538 transitions. Second operand has 10 states, 10 states have (on average 15.0) internal successors, (150), 8 states have internal predecessors, (150), 3 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (50), 5 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-20 09:29:56,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:29:56,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:56,952 INFO L93 Difference]: Finished difference Result 4163 states and 5371 transitions. [2022-11-20 09:29:56,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 09:29:56,953 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.0) internal successors, (150), 8 states have internal predecessors, (150), 3 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (50), 5 states have call predecessors, (50), 3 states have call successors, (50) Word has length 367 [2022-11-20 09:29:56,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:56,958 INFO L225 Difference]: With dead ends: 4163 [2022-11-20 09:29:56,959 INFO L226 Difference]: Without dead ends: 2213 [2022-11-20 09:29:56,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:29:56,963 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 78 mSDsluCounter, 8656 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 9754 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:56,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 9754 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 09:29:56,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2213 states. [2022-11-20 09:29:57,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2213 to 1986. [2022-11-20 09:29:57,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1986 states, 1295 states have (on average 1.1474903474903475) internal successors, (1486), 1328 states have internal predecessors, (1486), 520 states have call successors, (520), 161 states have call predecessors, (520), 169 states have return successors, (538), 524 states have call predecessors, (538), 519 states have call successors, (538) [2022-11-20 09:29:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2544 transitions. [2022-11-20 09:29:57,386 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2544 transitions. Word has length 367 [2022-11-20 09:29:57,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:57,387 INFO L495 AbstractCegarLoop]: Abstraction has 1986 states and 2544 transitions. [2022-11-20 09:29:57,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.0) internal successors, (150), 8 states have internal predecessors, (150), 3 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (50), 5 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-20 09:29:57,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2544 transitions. [2022-11-20 09:29:57,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2022-11-20 09:29:57,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:57,393 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:57,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:57,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-20 09:29:57,606 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:29:57,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:57,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1928543706, now seen corresponding path program 1 times [2022-11-20 09:29:57,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:57,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878409045] [2022-11-20 09:29:57,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:57,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:57,674 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:29:57,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998153185] [2022-11-20 09:29:57,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:57,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:57,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:57,676 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:57,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 09:30:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:00,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 2678 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-20 09:30:00,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:01,024 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2022-11-20 09:30:01,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:01,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:01,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878409045] [2022-11-20 09:30:01,025 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:30:01,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998153185] [2022-11-20 09:30:01,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998153185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:01,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:01,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 09:30:01,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991627935] [2022-11-20 09:30:01,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:01,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 09:30:01,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:01,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 09:30:01,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:30:01,028 INFO L87 Difference]: Start difference. First operand 1986 states and 2544 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 8 states have internal predecessors, (141), 3 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (48), 5 states have call predecessors, (48), 3 states have call successors, (48) [2022-11-20 09:30:01,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:01,604 INFO L93 Difference]: Finished difference Result 3704 states and 4800 transitions. [2022-11-20 09:30:01,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 09:30:01,605 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 8 states have internal predecessors, (141), 3 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (48), 5 states have call predecessors, (48), 3 states have call successors, (48) Word has length 388 [2022-11-20 09:30:01,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:01,610 INFO L225 Difference]: With dead ends: 3704 [2022-11-20 09:30:01,610 INFO L226 Difference]: Without dead ends: 2187 [2022-11-20 09:30:01,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:30:01,614 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 284 mSDsluCounter, 8378 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 9476 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:01,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 9476 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:30:01,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-11-20 09:30:01,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1986. [2022-11-20 09:30:01,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1986 states, 1295 states have (on average 1.145945945945946) internal successors, (1484), 1328 states have internal predecessors, (1484), 520 states have call successors, (520), 161 states have call predecessors, (520), 169 states have return successors, (538), 524 states have call predecessors, (538), 519 states have call successors, (538) [2022-11-20 09:30:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2542 transitions. [2022-11-20 09:30:01,949 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2542 transitions. Word has length 388 [2022-11-20 09:30:01,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:01,950 INFO L495 AbstractCegarLoop]: Abstraction has 1986 states and 2542 transitions. [2022-11-20 09:30:01,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 8 states have internal predecessors, (141), 3 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (48), 5 states have call predecessors, (48), 3 states have call successors, (48) [2022-11-20 09:30:01,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2542 transitions. [2022-11-20 09:30:01,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2022-11-20 09:30:01,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:01,955 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:01,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-20 09:30:02,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:02,156 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:30:02,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:02,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1601605367, now seen corresponding path program 1 times [2022-11-20 09:30:02,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:02,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142764932] [2022-11-20 09:30:02,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:02,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:02,221 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:30:02,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1924826307] [2022-11-20 09:30:02,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:02,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:02,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:02,223 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:02,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 09:30:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:03,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 2728 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-20 09:30:03,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:04,403 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 158 proven. 256 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-11-20 09:30:04,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:05,183 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2022-11-20 09:30:05,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:05,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142764932] [2022-11-20 09:30:05,184 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:30:05,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924826307] [2022-11-20 09:30:05,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924826307] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:05,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:05,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16] total 24 [2022-11-20 09:30:05,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952492453] [2022-11-20 09:30:05,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:05,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 09:30:05,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:05,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 09:30:05,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2022-11-20 09:30:05,187 INFO L87 Difference]: Start difference. First operand 1986 states and 2542 transitions. Second operand has 10 states, 10 states have (on average 13.9) internal successors, (139), 10 states have internal predecessors, (139), 5 states have call successors, (50), 4 states have call predecessors, (50), 3 states have return successors, (49), 5 states have call predecessors, (49), 5 states have call successors, (49) [2022-11-20 09:30:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:10,455 INFO L93 Difference]: Finished difference Result 3345 states and 4250 transitions. [2022-11-20 09:30:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 09:30:10,456 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.9) internal successors, (139), 10 states have internal predecessors, (139), 5 states have call successors, (50), 4 states have call predecessors, (50), 3 states have return successors, (49), 5 states have call predecessors, (49), 5 states have call successors, (49) Word has length 402 [2022-11-20 09:30:10,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:10,462 INFO L225 Difference]: With dead ends: 3345 [2022-11-20 09:30:10,462 INFO L226 Difference]: Without dead ends: 3310 [2022-11-20 09:30:10,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 783 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=826, Unknown=0, NotChecked=0, Total=992 [2022-11-20 09:30:10,464 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 3055 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 3478 mSolverCounterSat, 2136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3142 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 5614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2136 IncrementalHoareTripleChecker+Valid, 3478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:10,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3142 Valid, 2364 Invalid, 5614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2136 Valid, 3478 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-20 09:30:10,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2022-11-20 09:30:11,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 3278. [2022-11-20 09:30:11,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 2149 states have (on average 1.1521637971149372) internal successors, (2476), 2198 states have internal predecessors, (2476), 839 states have call successors, (839), 275 states have call predecessors, (839), 288 states have return successors, (862), 846 states have call predecessors, (862), 838 states have call successors, (862) [2022-11-20 09:30:11,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 4177 transitions. [2022-11-20 09:30:11,031 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 4177 transitions. Word has length 402 [2022-11-20 09:30:11,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:11,031 INFO L495 AbstractCegarLoop]: Abstraction has 3278 states and 4177 transitions. [2022-11-20 09:30:11,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.9) internal successors, (139), 10 states have internal predecessors, (139), 5 states have call successors, (50), 4 states have call predecessors, (50), 3 states have return successors, (49), 5 states have call predecessors, (49), 5 states have call successors, (49) [2022-11-20 09:30:11,031 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 4177 transitions. [2022-11-20 09:30:11,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-11-20 09:30:11,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:11,035 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 10, 10, 10, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:30:11,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:11,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-20 09:30:11,235 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:30:11,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:11,236 INFO L85 PathProgramCache]: Analyzing trace with hash -674483443, now seen corresponding path program 1 times [2022-11-20 09:30:11,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:11,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755791478] [2022-11-20 09:30:11,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:11,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:30:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 09:30:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:30:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 09:30:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:30:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:30:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:30:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 09:30:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 09:30:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:30:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:30:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:30:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 09:30:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:30:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:30:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:30:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 09:30:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-20 09:30:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 09:30:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-20 09:30:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:30:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:30:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 09:30:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:30:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:30:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-20 09:30:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-20 09:30:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-20 09:30:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:30:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-20 09:30:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-20 09:30:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-20 09:30:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-20 09:30:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-11-20 09:30:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-20 09:30:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-20 09:30:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-11-20 09:30:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-20 09:30:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-20 09:30:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-20 09:30:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-11-20 09:30:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-20 09:30:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-11-20 09:30:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-11-20 09:30:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-20 09:30:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-11-20 09:30:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-11-20 09:30:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-11-20 09:30:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-20 09:30:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-20 09:30:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:30:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:30:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:30:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:30:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:30:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:30:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 09:30:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 09:30:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 09:30:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-11-20 09:30:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 09:30:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 09:30:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 09:30:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:13,080 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 933 trivial. 0 not checked. [2022-11-20 09:30:13,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:13,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755791478] [2022-11-20 09:30:13,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755791478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:13,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:13,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-20 09:30:13,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363299812] [2022-11-20 09:30:13,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:13,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 09:30:13,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:13,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 09:30:13,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2022-11-20 09:30:13,084 INFO L87 Difference]: Start difference. First operand 3278 states and 4177 transitions. Second operand has 20 states, 19 states have (on average 8.157894736842104) internal successors, (155), 14 states have internal predecessors, (155), 6 states have call successors, (60), 7 states have call predecessors, (60), 3 states have return successors, (57), 6 states have call predecessors, (57), 6 states have call successors, (57) [2022-11-20 09:30:26,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:26,460 INFO L93 Difference]: Finished difference Result 6923 states and 9284 transitions. [2022-11-20 09:30:26,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 09:30:26,460 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.157894736842104) internal successors, (155), 14 states have internal predecessors, (155), 6 states have call successors, (60), 7 states have call predecessors, (60), 3 states have return successors, (57), 6 states have call predecessors, (57), 6 states have call successors, (57) Word has length 380 [2022-11-20 09:30:26,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:26,472 INFO L225 Difference]: With dead ends: 6923 [2022-11-20 09:30:26,472 INFO L226 Difference]: Without dead ends: 5210 [2022-11-20 09:30:26,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=294, Invalid=1598, Unknown=0, NotChecked=0, Total=1892 [2022-11-20 09:30:26,478 INFO L413 NwaCegarLoop]: 1050 mSDtfsCounter, 2356 mSDsluCounter, 10751 mSDsCounter, 0 mSdLazyCounter, 13041 mSolverCounterSat, 1961 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2468 SdHoareTripleChecker+Valid, 11801 SdHoareTripleChecker+Invalid, 15002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1961 IncrementalHoareTripleChecker+Valid, 13041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:26,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2468 Valid, 11801 Invalid, 15002 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1961 Valid, 13041 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2022-11-20 09:30:26,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2022-11-20 09:30:27,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 3463. [2022-11-20 09:30:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 2267 states have (on average 1.1513012792236437) internal successors, (2610), 2312 states have internal predecessors, (2610), 906 states have call successors, (906), 275 states have call predecessors, (906), 288 states have return successors, (929), 910 states have call predecessors, (929), 905 states have call successors, (929) [2022-11-20 09:30:27,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 4445 transitions. [2022-11-20 09:30:27,258 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 4445 transitions. Word has length 380 [2022-11-20 09:30:27,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:27,258 INFO L495 AbstractCegarLoop]: Abstraction has 3463 states and 4445 transitions. [2022-11-20 09:30:27,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.157894736842104) internal successors, (155), 14 states have internal predecessors, (155), 6 states have call successors, (60), 7 states have call predecessors, (60), 3 states have return successors, (57), 6 states have call predecessors, (57), 6 states have call successors, (57) [2022-11-20 09:30:27,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 4445 transitions. [2022-11-20 09:30:27,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2022-11-20 09:30:27,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:27,263 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 14, 14, 14, 6, 6, 5, 5, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:27,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-20 09:30:27,263 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:30:27,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:27,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1733853305, now seen corresponding path program 1 times [2022-11-20 09:30:27,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:27,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160173220] [2022-11-20 09:30:27,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:27,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:27,338 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:30:27,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146116721] [2022-11-20 09:30:27,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:27,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:27,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:27,343 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:27,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 09:30:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:28,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 3212 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-20 09:30:28,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:28,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1227 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2022-11-20 09:30:28,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:28,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:28,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160173220] [2022-11-20 09:30:28,628 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:30:28,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146116721] [2022-11-20 09:30:28,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146116721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:28,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:28,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-20 09:30:28,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349319176] [2022-11-20 09:30:28,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:28,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 09:30:28,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:28,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 09:30:28,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-11-20 09:30:28,631 INFO L87 Difference]: Start difference. First operand 3463 states and 4445 transitions. Second operand has 15 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (64), 7 states have call predecessors, (64), 7 states have call successors, (64) [2022-11-20 09:30:31,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:31,075 INFO L93 Difference]: Finished difference Result 5983 states and 7939 transitions. [2022-11-20 09:30:31,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-20 09:30:31,076 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (64), 7 states have call predecessors, (64), 7 states have call successors, (64) Word has length 471 [2022-11-20 09:30:31,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:31,084 INFO L225 Difference]: With dead ends: 5983 [2022-11-20 09:30:31,085 INFO L226 Difference]: Without dead ends: 4222 [2022-11-20 09:30:31,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2022-11-20 09:30:31,091 INFO L413 NwaCegarLoop]: 1450 mSDtfsCounter, 1414 mSDsluCounter, 16828 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 18278 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:31,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 18278 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 09:30:31,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2022-11-20 09:30:31,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 2700. [2022-11-20 09:30:31,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 1787 states have (on average 1.153329602686066) internal successors, (2061), 1827 states have internal predecessors, (2061), 679 states have call successors, (679), 217 states have call predecessors, (679), 232 states have return successors, (702), 693 states have call predecessors, (702), 678 states have call successors, (702) [2022-11-20 09:30:31,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 3442 transitions. [2022-11-20 09:30:31,697 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 3442 transitions. Word has length 471 [2022-11-20 09:30:31,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:31,697 INFO L495 AbstractCegarLoop]: Abstraction has 2700 states and 3442 transitions. [2022-11-20 09:30:31,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (64), 7 states have call predecessors, (64), 7 states have call successors, (64) [2022-11-20 09:30:31,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 3442 transitions. [2022-11-20 09:30:31,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-11-20 09:30:31,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:31,702 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 10, 10, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 09:30:31,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:31,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-20 09:30:31,902 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:30:31,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:31,903 INFO L85 PathProgramCache]: Analyzing trace with hash -180799050, now seen corresponding path program 1 times [2022-11-20 09:30:31,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:31,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37457881] [2022-11-20 09:30:31,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:31,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:31,983 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:30:31,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [187364868] [2022-11-20 09:30:31,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:31,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:31,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:31,985 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:31,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 09:30:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:33,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 3429 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 09:30:33,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:34,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1525 backedges. 158 proven. 763 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2022-11-20 09:30:34,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1525 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 1494 trivial. 0 not checked. [2022-11-20 09:30:35,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:35,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37457881] [2022-11-20 09:30:35,416 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:30:35,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187364868] [2022-11-20 09:30:35,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187364868] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:30:35,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:30:35,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2022-11-20 09:30:35,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216437406] [2022-11-20 09:30:35,417 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:30:35,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 09:30:35,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:35,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 09:30:35,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2022-11-20 09:30:35,419 INFO L87 Difference]: Start difference. First operand 2700 states and 3442 transitions. Second operand has 22 states, 22 states have (on average 13.045454545454545) internal successors, (287), 22 states have internal predecessors, (287), 12 states have call successors, (106), 11 states have call predecessors, (106), 12 states have return successors, (107), 12 states have call predecessors, (107), 12 states have call successors, (107) [2022-11-20 09:30:42,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:42,728 INFO L93 Difference]: Finished difference Result 3802 states and 4839 transitions. [2022-11-20 09:30:42,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 09:30:42,729 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.045454545454545) internal successors, (287), 22 states have internal predecessors, (287), 12 states have call successors, (106), 11 states have call predecessors, (106), 12 states have return successors, (107), 12 states have call predecessors, (107), 12 states have call successors, (107) Word has length 526 [2022-11-20 09:30:42,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:42,740 INFO L225 Difference]: With dead ends: 3802 [2022-11-20 09:30:42,740 INFO L226 Difference]: Without dead ends: 3800 [2022-11-20 09:30:42,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1061 GetRequests, 1028 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=267, Invalid=663, Unknown=0, NotChecked=0, Total=930 [2022-11-20 09:30:42,742 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 4001 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 6806 mSolverCounterSat, 2580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4305 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 9386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2580 IncrementalHoareTripleChecker+Valid, 6806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:42,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4305 Valid, 3101 Invalid, 9386 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2580 Valid, 6806 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-20 09:30:42,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3800 states. [2022-11-20 09:30:43,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3800 to 3760. [2022-11-20 09:30:43,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3760 states, 2478 states have (on average 1.1476997578692494) internal successors, (2844), 2534 states have internal predecessors, (2844), 959 states have call successors, (959), 300 states have call predecessors, (959), 321 states have return successors, (994), 977 states have call predecessors, (994), 958 states have call successors, (994) [2022-11-20 09:30:43,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3760 states to 3760 states and 4797 transitions. [2022-11-20 09:30:43,564 INFO L78 Accepts]: Start accepts. Automaton has 3760 states and 4797 transitions. Word has length 526 [2022-11-20 09:30:43,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:43,565 INFO L495 AbstractCegarLoop]: Abstraction has 3760 states and 4797 transitions. [2022-11-20 09:30:43,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.045454545454545) internal successors, (287), 22 states have internal predecessors, (287), 12 states have call successors, (106), 11 states have call predecessors, (106), 12 states have return successors, (107), 12 states have call predecessors, (107), 12 states have call successors, (107) [2022-11-20 09:30:43,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3760 states and 4797 transitions. [2022-11-20 09:30:43,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2022-11-20 09:30:43,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:43,569 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 10, 10, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:43,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:43,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-20 09:30:43,771 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:30:43,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:43,771 INFO L85 PathProgramCache]: Analyzing trace with hash -738797559, now seen corresponding path program 1 times [2022-11-20 09:30:43,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:43,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601549881] [2022-11-20 09:30:43,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:43,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:43,854 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:30:43,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [296571508] [2022-11-20 09:30:43,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:43,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:43,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:43,855 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:43,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 09:30:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:45,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 3885 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:45,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:45,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2022-11-20 09:30:45,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:45,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:45,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601549881] [2022-11-20 09:30:45,092 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:30:45,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296571508] [2022-11-20 09:30:45,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296571508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:45,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:45,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:45,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063650940] [2022-11-20 09:30:45,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:45,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:45,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:45,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:45,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:45,095 INFO L87 Difference]: Start difference. First operand 3760 states and 4797 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2022-11-20 09:30:46,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:46,233 INFO L93 Difference]: Finished difference Result 7522 states and 9673 transitions. [2022-11-20 09:30:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:46,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 543 [2022-11-20 09:30:46,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:46,243 INFO L225 Difference]: With dead ends: 7522 [2022-11-20 09:30:46,243 INFO L226 Difference]: Without dead ends: 4106 [2022-11-20 09:30:46,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 541 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 09:30:46,249 INFO L413 NwaCegarLoop]: 1064 mSDtfsCounter, 74 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:46,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 2040 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:30:46,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4106 states. [2022-11-20 09:30:47,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4106 to 3775. [2022-11-20 09:30:47,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3775 states, 2493 states have (on average 1.1468110709987966) internal successors, (2859), 2549 states have internal predecessors, (2859), 959 states have call successors, (959), 300 states have call predecessors, (959), 321 states have return successors, (994), 977 states have call predecessors, (994), 958 states have call successors, (994) [2022-11-20 09:30:47,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3775 states to 3775 states and 4812 transitions. [2022-11-20 09:30:47,168 INFO L78 Accepts]: Start accepts. Automaton has 3775 states and 4812 transitions. Word has length 543 [2022-11-20 09:30:47,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:47,169 INFO L495 AbstractCegarLoop]: Abstraction has 3775 states and 4812 transitions. [2022-11-20 09:30:47,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2022-11-20 09:30:47,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3775 states and 4812 transitions. [2022-11-20 09:30:47,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2022-11-20 09:30:47,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:47,175 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:47,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:47,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2022-11-20 09:30:47,376 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:30:47,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:47,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1264554291, now seen corresponding path program 1 times [2022-11-20 09:30:47,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:47,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542946098] [2022-11-20 09:30:47,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:47,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:47,481 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:30:47,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [449804930] [2022-11-20 09:30:47,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:47,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:47,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:47,483 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:47,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 09:30:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:48,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 4788 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 09:30:48,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1605 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 1252 trivial. 0 not checked. [2022-11-20 09:30:49,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:49,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:49,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542946098] [2022-11-20 09:30:49,824 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:30:49,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449804930] [2022-11-20 09:30:49,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449804930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:49,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:49,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:30:49,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995641001] [2022-11-20 09:30:49,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:49,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:49,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:49,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:49,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:49,827 INFO L87 Difference]: Start difference. First operand 3775 states and 4812 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2022-11-20 09:30:50,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:50,812 INFO L93 Difference]: Finished difference Result 7122 states and 9097 transitions. [2022-11-20 09:30:50,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:50,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) Word has length 718 [2022-11-20 09:30:50,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:50,826 INFO L225 Difference]: With dead ends: 7122 [2022-11-20 09:30:50,826 INFO L226 Difference]: Without dead ends: 3765 [2022-11-20 09:30:50,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 716 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 09:30:50,837 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 687 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:50,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 974 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:30:50,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2022-11-20 09:30:51,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3765. [2022-11-20 09:30:51,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3765 states, 2488 states have (on average 1.1430868167202572) internal successors, (2844), 2544 states have internal predecessors, (2844), 954 states have call successors, (954), 300 states have call predecessors, (954), 321 states have return successors, (989), 972 states have call predecessors, (989), 953 states have call successors, (989) [2022-11-20 09:30:51,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 4787 transitions. [2022-11-20 09:30:51,764 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 4787 transitions. Word has length 718 [2022-11-20 09:30:51,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:51,765 INFO L495 AbstractCegarLoop]: Abstraction has 3765 states and 4787 transitions. [2022-11-20 09:30:51,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (81), 2 states have call predecessors, (81), 2 states have call successors, (81) [2022-11-20 09:30:51,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 4787 transitions. [2022-11-20 09:30:51,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2022-11-20 09:30:51,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:51,772 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:51,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:51,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:51,974 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:30:51,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:51,974 INFO L85 PathProgramCache]: Analyzing trace with hash 904689775, now seen corresponding path program 1 times [2022-11-20 09:30:51,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:51,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300985621] [2022-11-20 09:30:51,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:51,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:52,076 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:30:52,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1958374362] [2022-11-20 09:30:52,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:52,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:52,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:52,078 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:52,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-20 09:30:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:53,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 4828 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 09:30:53,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:53,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1622 backedges. 699 proven. 1 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2022-11-20 09:30:53,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:54,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1622 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1618 trivial. 0 not checked. [2022-11-20 09:30:54,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:54,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300985621] [2022-11-20 09:30:54,156 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:30:54,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958374362] [2022-11-20 09:30:54,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958374362] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:30:54,156 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:30:54,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-20 09:30:54,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764506801] [2022-11-20 09:30:54,157 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:30:54,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:30:54,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:54,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:30:54,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:30:54,159 INFO L87 Difference]: Start difference. First operand 3765 states and 4787 transitions. Second operand has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 4 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (123), 4 states have call predecessors, (123), 4 states have call successors, (123) [2022-11-20 09:30:56,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:56,170 INFO L93 Difference]: Finished difference Result 8352 states and 10840 transitions. [2022-11-20 09:30:56,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:56,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 4 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (123), 4 states have call predecessors, (123), 4 states have call successors, (123) Word has length 728 [2022-11-20 09:30:56,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:56,182 INFO L225 Difference]: With dead ends: 8352 [2022-11-20 09:30:56,182 INFO L226 Difference]: Without dead ends: 4932 [2022-11-20 09:30:56,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1454 GetRequests, 1450 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:30:56,190 INFO L413 NwaCegarLoop]: 1140 mSDtfsCounter, 522 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:56,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 3067 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 09:30:56,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4932 states. [2022-11-20 09:30:57,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4932 to 4065. [2022-11-20 09:30:57,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4065 states, 2698 states have (on average 1.148628613787991) internal successors, (3099), 2754 states have internal predecessors, (3099), 1044 states have call successors, (1044), 300 states have call predecessors, (1044), 321 states have return successors, (1079), 1062 states have call predecessors, (1079), 1043 states have call successors, (1079) [2022-11-20 09:30:57,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5222 transitions. [2022-11-20 09:30:57,143 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5222 transitions. Word has length 728 [2022-11-20 09:30:57,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:57,144 INFO L495 AbstractCegarLoop]: Abstraction has 4065 states and 5222 transitions. [2022-11-20 09:30:57,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 4 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (123), 4 states have call predecessors, (123), 4 states have call successors, (123) [2022-11-20 09:30:57,144 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5222 transitions. [2022-11-20 09:30:57,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1068 [2022-11-20 09:30:57,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:57,159 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:57,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:57,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:57,360 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:30:57,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:57,360 INFO L85 PathProgramCache]: Analyzing trace with hash 179842715, now seen corresponding path program 1 times [2022-11-20 09:30:57,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:57,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934912060] [2022-11-20 09:30:57,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:57,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:57,510 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:30:57,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [534821839] [2022-11-20 09:30:57,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:57,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:57,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:57,512 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:57,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-20 09:30:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:59,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 6558 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 09:30:59,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:59,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3926 backedges. 1836 proven. 64 refuted. 0 times theorem prover too weak. 2026 trivial. 0 not checked. [2022-11-20 09:30:59,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:31:00,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3926 backedges. 3 proven. 64 refuted. 0 times theorem prover too weak. 3859 trivial. 0 not checked. [2022-11-20 09:31:00,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:00,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934912060] [2022-11-20 09:31:00,687 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:31:00,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534821839] [2022-11-20 09:31:00,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534821839] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:31:00,687 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:31:00,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2022-11-20 09:31:00,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667997054] [2022-11-20 09:31:00,688 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:31:00,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 09:31:00,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:00,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 09:31:00,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:31:00,691 INFO L87 Difference]: Start difference. First operand 4065 states and 5222 transitions. Second operand has 10 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 9 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (138), 9 states have call predecessors, (138), 9 states have call successors, (138) [2022-11-20 09:31:04,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:04,132 INFO L93 Difference]: Finished difference Result 9986 states and 13211 transitions. [2022-11-20 09:31:04,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 09:31:04,132 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 9 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (138), 9 states have call predecessors, (138), 9 states have call successors, (138) Word has length 1067 [2022-11-20 09:31:04,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:04,148 INFO L225 Difference]: With dead ends: 9986 [2022-11-20 09:31:04,148 INFO L226 Difference]: Without dead ends: 6296 [2022-11-20 09:31:04,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2132 GetRequests, 2122 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:31:04,155 INFO L413 NwaCegarLoop]: 1264 mSDtfsCounter, 1054 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:04,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 3423 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 09:31:04,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6296 states. [2022-11-20 09:31:05,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 4465. [2022-11-20 09:31:05,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4465 states, 2978 states have (on average 1.1548018804566824) internal successors, (3439), 3034 states have internal predecessors, (3439), 1164 states have call successors, (1164), 300 states have call predecessors, (1164), 321 states have return successors, (1199), 1182 states have call predecessors, (1199), 1163 states have call successors, (1199) [2022-11-20 09:31:05,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4465 states to 4465 states and 5802 transitions. [2022-11-20 09:31:05,295 INFO L78 Accepts]: Start accepts. Automaton has 4465 states and 5802 transitions. Word has length 1067 [2022-11-20 09:31:05,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:05,295 INFO L495 AbstractCegarLoop]: Abstraction has 4465 states and 5802 transitions. [2022-11-20 09:31:05,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 9 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (138), 9 states have call predecessors, (138), 9 states have call successors, (138) [2022-11-20 09:31:05,296 INFO L276 IsEmpty]: Start isEmpty. Operand 4465 states and 5802 transitions. [2022-11-20 09:31:05,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1520 [2022-11-20 09:31:05,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:05,317 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:05,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:05,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-11-20 09:31:05,518 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:31:05,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:05,518 INFO L85 PathProgramCache]: Analyzing trace with hash 813442847, now seen corresponding path program 2 times [2022-11-20 09:31:05,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:05,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485150680] [2022-11-20 09:31:05,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:05,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:05,750 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:31:05,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2132284191] [2022-11-20 09:31:05,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:31:05,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:05,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:05,753 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:05,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-20 09:31:08,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 09:31:08,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:31:08,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 8850 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-20 09:31:08,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 9784 backedges. 1512 proven. 0 refuted. 0 times theorem prover too weak. 8272 trivial. 0 not checked. [2022-11-20 09:31:08,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:08,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:08,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485150680] [2022-11-20 09:31:08,292 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:31:08,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132284191] [2022-11-20 09:31:08,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132284191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:08,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:08,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:31:08,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360188675] [2022-11-20 09:31:08,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:08,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:31:08,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:08,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:31:08,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:31:08,296 INFO L87 Difference]: Start difference. First operand 4465 states and 5802 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-11-20 09:31:10,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:10,076 INFO L93 Difference]: Finished difference Result 8985 states and 11738 transitions. [2022-11-20 09:31:10,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:10,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 1519 [2022-11-20 09:31:10,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:10,090 INFO L225 Difference]: With dead ends: 8985 [2022-11-20 09:31:10,090 INFO L226 Difference]: Without dead ends: 4848 [2022-11-20 09:31:10,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1520 GetRequests, 1517 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:31:10,099 INFO L413 NwaCegarLoop]: 1145 mSDtfsCounter, 125 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3176 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:10,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3176 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:31:10,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4848 states. [2022-11-20 09:31:11,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4848 to 4473. [2022-11-20 09:31:11,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4473 states, 2986 states have (on average 1.1543871399866041) internal successors, (3447), 3042 states have internal predecessors, (3447), 1164 states have call successors, (1164), 300 states have call predecessors, (1164), 321 states have return successors, (1199), 1182 states have call predecessors, (1199), 1163 states have call successors, (1199) [2022-11-20 09:31:11,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4473 states to 4473 states and 5810 transitions. [2022-11-20 09:31:11,173 INFO L78 Accepts]: Start accepts. Automaton has 4473 states and 5810 transitions. Word has length 1519 [2022-11-20 09:31:11,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:11,173 INFO L495 AbstractCegarLoop]: Abstraction has 4473 states and 5810 transitions. [2022-11-20 09:31:11,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-11-20 09:31:11,174 INFO L276 IsEmpty]: Start isEmpty. Operand 4473 states and 5810 transitions. [2022-11-20 09:31:11,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1540 [2022-11-20 09:31:11,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:11,193 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:11,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:11,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-11-20 09:31:11,394 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:31:11,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:11,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1308618779, now seen corresponding path program 1 times [2022-11-20 09:31:11,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:11,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818535673] [2022-11-20 09:31:11,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:11,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:11,571 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:31:11,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542544820] [2022-11-20 09:31:11,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:11,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:11,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:11,575 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:11,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-20 09:31:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:14,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 8933 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-20 09:31:14,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 9838 backedges. 1590 proven. 0 refuted. 0 times theorem prover too weak. 8248 trivial. 0 not checked. [2022-11-20 09:31:14,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:14,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:14,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818535673] [2022-11-20 09:31:14,221 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:31:14,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542544820] [2022-11-20 09:31:14,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542544820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:14,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:14,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 09:31:14,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36599424] [2022-11-20 09:31:14,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:14,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 09:31:14,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:14,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 09:31:14,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:31:14,224 INFO L87 Difference]: Start difference. First operand 4473 states and 5810 transitions. Second operand has 8 states, 8 states have (on average 32.0) internal successors, (256), 7 states have internal predecessors, (256), 2 states have call successors, (89), 2 states have call predecessors, (89), 3 states have return successors, (88), 3 states have call predecessors, (88), 2 states have call successors, (88) [2022-11-20 09:31:16,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:16,003 INFO L93 Difference]: Finished difference Result 9168 states and 11998 transitions. [2022-11-20 09:31:16,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 09:31:16,003 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.0) internal successors, (256), 7 states have internal predecessors, (256), 2 states have call successors, (89), 2 states have call predecessors, (89), 3 states have return successors, (88), 3 states have call predecessors, (88), 2 states have call successors, (88) Word has length 1539 [2022-11-20 09:31:16,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:16,014 INFO L225 Difference]: With dead ends: 9168 [2022-11-20 09:31:16,014 INFO L226 Difference]: Without dead ends: 5013 [2022-11-20 09:31:16,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1545 GetRequests, 1535 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-20 09:31:16,021 INFO L413 NwaCegarLoop]: 1116 mSDtfsCounter, 353 mSDsluCounter, 6428 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 7544 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:16,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 7544 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:31:16,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2022-11-20 09:31:17,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 4484. [2022-11-20 09:31:17,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4484 states, 2997 states have (on average 1.1538204871538205) internal successors, (3458), 3054 states have internal predecessors, (3458), 1164 states have call successors, (1164), 300 states have call predecessors, (1164), 321 states have return successors, (1199), 1181 states have call predecessors, (1199), 1163 states have call successors, (1199) [2022-11-20 09:31:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4484 states to 4484 states and 5821 transitions. [2022-11-20 09:31:17,133 INFO L78 Accepts]: Start accepts. Automaton has 4484 states and 5821 transitions. Word has length 1539 [2022-11-20 09:31:17,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:17,134 INFO L495 AbstractCegarLoop]: Abstraction has 4484 states and 5821 transitions. [2022-11-20 09:31:17,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.0) internal successors, (256), 7 states have internal predecessors, (256), 2 states have call successors, (89), 2 states have call predecessors, (89), 3 states have return successors, (88), 3 states have call predecessors, (88), 2 states have call successors, (88) [2022-11-20 09:31:17,134 INFO L276 IsEmpty]: Start isEmpty. Operand 4484 states and 5821 transitions. [2022-11-20 09:31:17,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1596 [2022-11-20 09:31:17,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:17,155 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 22, 22, 22, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:17,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:17,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-11-20 09:31:17,356 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:31:17,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:17,356 INFO L85 PathProgramCache]: Analyzing trace with hash 190696389, now seen corresponding path program 1 times [2022-11-20 09:31:17,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:17,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849604989] [2022-11-20 09:31:17,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:17,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:17,546 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:31:17,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602922863] [2022-11-20 09:31:17,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:17,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:17,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:17,554 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:17,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-20 09:31:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:20,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 9253 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-20 09:31:20,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 10228 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 9829 trivial. 0 not checked. [2022-11-20 09:31:20,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:20,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:20,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849604989] [2022-11-20 09:31:20,458 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:31:20,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602922863] [2022-11-20 09:31:20,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602922863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:20,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:20,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 09:31:20,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831325377] [2022-11-20 09:31:20,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:20,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 09:31:20,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:20,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 09:31:20,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-20 09:31:20,462 INFO L87 Difference]: Start difference. First operand 4484 states and 5821 transitions. Second operand has 14 states, 13 states have (on average 19.307692307692307) internal successors, (251), 13 states have internal predecessors, (251), 6 states have call successors, (94), 2 states have call predecessors, (94), 4 states have return successors, (93), 6 states have call predecessors, (93), 6 states have call successors, (93) [2022-11-20 09:31:23,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:23,726 INFO L93 Difference]: Finished difference Result 8680 states and 11550 transitions. [2022-11-20 09:31:23,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:31:23,727 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 19.307692307692307) internal successors, (251), 13 states have internal predecessors, (251), 6 states have call successors, (94), 2 states have call predecessors, (94), 4 states have return successors, (93), 6 states have call predecessors, (93), 6 states have call successors, (93) Word has length 1595 [2022-11-20 09:31:23,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:23,740 INFO L225 Difference]: With dead ends: 8680 [2022-11-20 09:31:23,740 INFO L226 Difference]: Without dead ends: 5625 [2022-11-20 09:31:23,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1612 GetRequests, 1586 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2022-11-20 09:31:23,746 INFO L413 NwaCegarLoop]: 1631 mSDtfsCounter, 2020 mSDsluCounter, 16691 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 18322 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 943 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:23,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 18322 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [943 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 09:31:23,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5625 states. [2022-11-20 09:31:24,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5625 to 3817. [2022-11-20 09:31:24,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3817 states, 2546 states have (on average 1.1496465043205029) internal successors, (2927), 2589 states have internal predecessors, (2927), 982 states have call successors, (982), 273 states have call predecessors, (982), 287 states have return successors, (1003), 994 states have call predecessors, (1003), 981 states have call successors, (1003) [2022-11-20 09:31:24,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3817 states to 3817 states and 4912 transitions. [2022-11-20 09:31:24,947 INFO L78 Accepts]: Start accepts. Automaton has 3817 states and 4912 transitions. Word has length 1595 [2022-11-20 09:31:24,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:24,949 INFO L495 AbstractCegarLoop]: Abstraction has 3817 states and 4912 transitions. [2022-11-20 09:31:24,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 19.307692307692307) internal successors, (251), 13 states have internal predecessors, (251), 6 states have call successors, (94), 2 states have call predecessors, (94), 4 states have return successors, (93), 6 states have call predecessors, (93), 6 states have call successors, (93) [2022-11-20 09:31:24,949 INFO L276 IsEmpty]: Start isEmpty. Operand 3817 states and 4912 transitions. [2022-11-20 09:31:24,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1807 [2022-11-20 09:31:24,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:24,979 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 29, 22, 22, 22, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:31:25,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:25,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:25,180 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:31:25,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:25,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1750863212, now seen corresponding path program 1 times [2022-11-20 09:31:25,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:25,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960954511] [2022-11-20 09:31:25,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:25,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:25,379 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:31:25,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2007328333] [2022-11-20 09:31:25,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:25,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:25,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:25,380 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:25,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-20 09:31:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:28,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 10270 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-20 09:31:28,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:35,502 INFO L134 CoverageAnalysis]: Checked inductivity of 11515 backedges. 361 proven. 2296 refuted. 0 times theorem prover too weak. 8858 trivial. 0 not checked. [2022-11-20 09:31:35,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:31:39,248 INFO L134 CoverageAnalysis]: Checked inductivity of 11515 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11515 trivial. 0 not checked. [2022-11-20 09:31:39,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:39,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960954511] [2022-11-20 09:31:39,248 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 09:31:39,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007328333] [2022-11-20 09:31:39,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007328333] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:39,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:31:39,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 19 [2022-11-20 09:31:39,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202171647] [2022-11-20 09:31:39,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:39,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 09:31:39,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:39,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 09:31:39,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-11-20 09:31:39,252 INFO L87 Difference]: Start difference. First operand 3817 states and 4912 transitions. Second operand has 11 states, 11 states have (on average 28.545454545454547) internal successors, (314), 11 states have internal predecessors, (314), 8 states have call successors, (129), 4 states have call predecessors, (129), 3 states have return successors, (128), 8 states have call predecessors, (128), 8 states have call successors, (128) [2022-11-20 09:31:45,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:45,584 INFO L93 Difference]: Finished difference Result 3844 states and 4940 transitions. [2022-11-20 09:31:45,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 09:31:45,585 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 28.545454545454547) internal successors, (314), 11 states have internal predecessors, (314), 8 states have call successors, (129), 4 states have call predecessors, (129), 3 states have return successors, (128), 8 states have call predecessors, (128), 8 states have call successors, (128) Word has length 1806 [2022-11-20 09:31:45,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:45,601 INFO L225 Difference]: With dead ends: 3844 [2022-11-20 09:31:45,601 INFO L226 Difference]: Without dead ends: 3809 [2022-11-20 09:31:45,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3620 GetRequests, 3596 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2022-11-20 09:31:45,605 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 2599 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 5434 mSolverCounterSat, 1964 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2686 SdHoareTripleChecker+Valid, 3422 SdHoareTripleChecker+Invalid, 7398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1964 IncrementalHoareTripleChecker+Valid, 5434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:45,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2686 Valid, 3422 Invalid, 7398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1964 Valid, 5434 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-20 09:31:45,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3809 states. [2022-11-20 09:31:46,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3809 to 3807. [2022-11-20 09:31:46,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3807 states, 2538 states have (on average 1.1501182033096926) internal successors, (2919), 2580 states have internal predecessors, (2919), 979 states have call successors, (979), 273 states have call predecessors, (979), 288 states have return successors, (1000), 993 states have call predecessors, (1000), 978 states have call successors, (1000) [2022-11-20 09:31:46,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 4898 transitions. [2022-11-20 09:31:46,576 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 4898 transitions. Word has length 1806 [2022-11-20 09:31:46,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:46,577 INFO L495 AbstractCegarLoop]: Abstraction has 3807 states and 4898 transitions. [2022-11-20 09:31:46,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 28.545454545454547) internal successors, (314), 11 states have internal predecessors, (314), 8 states have call successors, (129), 4 states have call predecessors, (129), 3 states have return successors, (128), 8 states have call predecessors, (128), 8 states have call successors, (128) [2022-11-20 09:31:46,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 4898 transitions. [2022-11-20 09:31:46,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1928 [2022-11-20 09:31:46,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:46,608 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 27, 27, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:46,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:46,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-11-20 09:31:46,808 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 09:31:46,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:46,809 INFO L85 PathProgramCache]: Analyzing trace with hash -436465227, now seen corresponding path program 1 times [2022-11-20 09:31:46,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:46,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111763357] [2022-11-20 09:31:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:46,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:46,999 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 09:31:46,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1097544324] [2022-11-20 09:31:47,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:47,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:47,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:47,000 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:47,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3df98313-0284-4967-aecc-4f9ec67ad84e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-20 09:31:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 11004 conjuncts, 230 conjunts are in the unsatisfiable core [2022-11-20 09:31:50,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:50,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:31:50,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 09:31:51,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 09:31:51,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 09:31:51,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 09:31:51,568 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-20 09:31:51,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-20 09:31:51,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 09:31:51,641 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 09:31:51,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-20 09:31:51,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 09:31:51,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 09:31:52,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 09:31:52,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 09:31:52,310 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 09:31:52,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-20 09:31:52,449 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 09:31:52,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-20 09:31:52,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 09:31:52,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 09:31:52,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-20 09:31:53,031 INFO L321 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2022-11-20 09:31:53,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 45 [2022-11-20 09:31:57,220 INFO L321 Elim1Store]: treesize reduction 1697, result has 21.3 percent of original size [2022-11-20 09:31:57,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 43 case distinctions, treesize of input 103 treesize of output 524