./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8 --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 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d --- 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-e04fb08 [2022-11-16 11:48:43,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:48:43,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:48:43,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:48:43,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:48:43,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:48:43,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:48:43,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:48:43,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:48:43,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:48:43,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:48:43,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:48:43,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:48:43,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:48:43,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:48:43,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:48:43,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:48:43,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:48:43,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:48:43,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:48:43,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:48:43,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:48:43,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:48:43,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:48:43,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:48:43,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:48:43,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:48:43,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:48:43,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:48:43,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:48:43,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:48:43,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:48:43,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:48:43,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:48:43,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:48:43,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:48:43,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:48:43,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:48:43,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:48:43,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:48:43,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:48:43,582 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:48:43,620 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:48:43,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:48:43,620 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:48:43,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:48:43,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:48:43,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:48:43,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:48:43,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:48:43,623 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:48:43,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:48:43,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:48:43,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:48:43,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:48:43,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:48:43,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:48:43,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:48:43,625 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:48:43,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:48:43,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:48:43,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:48:43,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:48:43,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:48:43,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:48:43,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:48:43,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:48:43,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:48:43,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:48:43,632 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:48:43,633 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:48:43,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:48:43,634 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_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2022-11-16 11:48:43,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:48:44,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:48:44,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:48:44,033 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:48:44,034 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:48:44,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-11-16 11:48:44,121 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/data/f1da5691b/10f3ff561d024b1688550548ba6bc470/FLAG47d4dabf2 [2022-11-16 11:48:45,157 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:48:45,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-11-16 11:48:45,214 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/data/f1da5691b/10f3ff561d024b1688550548ba6bc470/FLAG47d4dabf2 [2022-11-16 11:48:45,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/data/f1da5691b/10f3ff561d024b1688550548ba6bc470 [2022-11-16 11:48:45,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:48:45,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:48:45,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:48:45,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:48:45,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:48:45,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:48:45" (1/1) ... [2022-11-16 11:48:45,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bddf5cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:45, skipping insertion in model container [2022-11-16 11:48:45,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:48:45" (1/1) ... [2022-11-16 11:48:45,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:48:45,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:48:47,114 WARN L229 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_326e5bce-0e40-414c-84c5-50ec95e1db5e/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2022-11-16 11:48:48,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:48:48,431 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:48:48,589 WARN L229 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_326e5bce-0e40-414c-84c5-50ec95e1db5e/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2022-11-16 11:48:49,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:48:49,219 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:48:49,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49 WrapperNode [2022-11-16 11:48:49,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:48:49,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:48:49,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:48:49,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:48:49,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49" (1/1) ... [2022-11-16 11:48:49,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49" (1/1) ... [2022-11-16 11:48:49,681 INFO L138 Inliner]: procedures = 371, calls = 3025, calls flagged for inlining = 198, calls inlined = 180, statements flattened = 6258 [2022-11-16 11:48:49,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:48:49,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:48:49,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:48:49,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:48:49,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49" (1/1) ... [2022-11-16 11:48:49,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49" (1/1) ... [2022-11-16 11:48:49,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49" (1/1) ... [2022-11-16 11:48:49,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49" (1/1) ... [2022-11-16 11:48:49,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49" (1/1) ... [2022-11-16 11:48:50,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49" (1/1) ... [2022-11-16 11:48:50,065 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49" (1/1) ... [2022-11-16 11:48:50,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49" (1/1) ... [2022-11-16 11:48:50,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:48:50,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:48:50,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:48:50,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:48:50,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49" (1/1) ... [2022-11-16 11:48:50,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:48:50,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:48:50,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:48:50,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_326e5bce-0e40-414c-84c5-50ec95e1db5e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:48:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2022-11-16 11:48:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2022-11-16 11:48:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2022-11-16 11:48:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2022-11-16 11:48:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2022-11-16 11:48:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2022-11-16 11:48:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2022-11-16 11:48:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2022-11-16 11:48:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-16 11:48:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-16 11:48:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2022-11-16 11:48:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2022-11-16 11:48:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2022-11-16 11:48:50,268 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2022-11-16 11:48:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 11:48:50,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 11:48:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-16 11:48:50,268 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-16 11:48:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2022-11-16 11:48:50,269 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2022-11-16 11:48:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2022-11-16 11:48:50,269 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2022-11-16 11:48:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2022-11-16 11:48:50,270 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2022-11-16 11:48:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-16 11:48:50,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-16 11:48:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2022-11-16 11:48:50,270 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2022-11-16 11:48:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 11:48:50,271 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 11:48:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-16 11:48:50,271 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-16 11:48:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2022-11-16 11:48:50,271 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2022-11-16 11:48:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:48:50,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:48:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-16 11:48:50,272 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-16 11:48:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-16 11:48:50,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-16 11:48:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-11-16 11:48:50,273 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-11-16 11:48:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2022-11-16 11:48:50,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2022-11-16 11:48:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2022-11-16 11:48:50,274 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2022-11-16 11:48:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2022-11-16 11:48:50,275 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2022-11-16 11:48:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 11:48:50,275 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 11:48:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:48:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:48:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-11-16 11:48:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-11-16 11:48:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2022-11-16 11:48:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2022-11-16 11:48:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2022-11-16 11:48:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2022-11-16 11:48:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-16 11:48:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-16 11:48:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2022-11-16 11:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2022-11-16 11:48:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 11:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 11:48:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:48:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:48:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2022-11-16 11:48:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2022-11-16 11:48:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2022-11-16 11:48:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2022-11-16 11:48:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2022-11-16 11:48:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2022-11-16 11:48:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2022-11-16 11:48:50,285 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2022-11-16 11:48:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2022-11-16 11:48:50,285 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2022-11-16 11:48:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2022-11-16 11:48:50,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2022-11-16 11:48:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-11-16 11:48:50,286 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-11-16 11:48:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-16 11:48:50,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-16 11:48:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 11:48:50,286 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 11:48:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:48:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 11:48:50,287 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 11:48:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2022-11-16 11:48:50,287 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2022-11-16 11:48:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2022-11-16 11:48:50,288 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2022-11-16 11:48:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2022-11-16 11:48:50,289 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2022-11-16 11:48:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2022-11-16 11:48:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2022-11-16 11:48:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-16 11:48:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-16 11:48:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:48:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-16 11:48:50,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-16 11:48:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-16 11:48:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2022-11-16 11:48:50,293 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2022-11-16 11:48:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2022-11-16 11:48:50,293 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2022-11-16 11:48:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-16 11:48:50,294 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-16 11:48:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 11:48:50,294 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 11:48:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2022-11-16 11:48:50,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2022-11-16 11:48:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2022-11-16 11:48:50,295 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2022-11-16 11:48:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:48:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:48:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2022-11-16 11:48:50,296 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2022-11-16 11:48:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-16 11:48:50,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-16 11:48:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-11-16 11:48:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-11-16 11:48:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 11:48:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 11:48:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2022-11-16 11:48:50,303 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2022-11-16 11:48:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2022-11-16 11:48:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2022-11-16 11:48:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 11:48:50,310 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 11:48:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 11:48:50,311 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 11:48:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-16 11:48:50,311 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-16 11:48:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2022-11-16 11:48:50,311 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2022-11-16 11:48:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-11-16 11:48:50,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-11-16 11:48:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2022-11-16 11:48:50,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2022-11-16 11:48:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-16 11:48:50,312 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-16 11:48:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2022-11-16 11:48:50,313 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2022-11-16 11:48:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2022-11-16 11:48:50,313 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2022-11-16 11:48:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 11:48:50,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 11:48:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2022-11-16 11:48:50,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2022-11-16 11:48:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 11:48:50,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 11:48:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-16 11:48:50,314 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-16 11:48:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2022-11-16 11:48:50,315 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2022-11-16 11:48:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2022-11-16 11:48:50,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2022-11-16 11:48:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2022-11-16 11:48:50,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2022-11-16 11:48:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2022-11-16 11:48:50,316 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2022-11-16 11:48:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:48:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2022-11-16 11:48:50,316 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2022-11-16 11:48:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-16 11:48:50,316 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-16 11:48:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2022-11-16 11:48:50,317 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2022-11-16 11:48:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-16 11:48:50,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-16 11:48:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2022-11-16 11:48:50,317 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2022-11-16 11:48:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2022-11-16 11:48:50,318 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2022-11-16 11:48:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-16 11:48:50,318 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-16 11:48:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-16 11:48:50,318 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-16 11:48:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-16 11:48:50,319 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-16 11:48:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2022-11-16 11:48:50,319 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2022-11-16 11:48:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 11:48:50,319 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 11:48:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2022-11-16 11:48:50,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2022-11-16 11:48:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2022-11-16 11:48:50,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2022-11-16 11:48:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-11-16 11:48:50,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-11-16 11:48:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:48:50,321 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2022-11-16 11:48:50,321 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2022-11-16 11:48:50,321 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2022-11-16 11:48:50,321 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2022-11-16 11:48:50,321 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-16 11:48:50,321 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-16 11:48:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:48:50,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:48:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2022-11-16 11:48:50,323 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2022-11-16 11:48:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2022-11-16 11:48:50,324 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2022-11-16 11:48:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2022-11-16 11:48:50,324 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2022-11-16 11:48:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:48:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2022-11-16 11:48:50,324 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2022-11-16 11:48:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:48:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-16 11:48:50,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-16 11:48:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:48:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 11:48:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2022-11-16 11:48:50,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2022-11-16 11:48:50,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2022-11-16 11:48:50,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2022-11-16 11:48:50,326 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:48:50,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:48:50,326 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-16 11:48:50,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-16 11:48:50,327 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2022-11-16 11:48:50,327 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2022-11-16 11:48:50,327 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 11:48:50,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 11:48:50,327 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-11-16 11:48:50,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-11-16 11:48:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2022-11-16 11:48:50,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2022-11-16 11:48:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2022-11-16 11:48:50,328 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2022-11-16 11:48:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2022-11-16 11:48:50,328 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2022-11-16 11:48:50,329 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2022-11-16 11:48:50,329 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2022-11-16 11:48:50,329 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-16 11:48:50,329 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-16 11:48:50,329 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-16 11:48:50,329 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-16 11:48:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2022-11-16 11:48:50,330 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2022-11-16 11:48:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 11:48:50,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 11:48:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2022-11-16 11:48:50,330 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2022-11-16 11:48:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 11:48:50,336 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 11:48:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-16 11:48:50,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-16 11:48:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:48:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:48:50,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:48:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-11-16 11:48:50,338 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-11-16 11:48:50,338 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-11-16 11:48:50,338 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-11-16 11:48:50,341 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 11:48:50,341 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 11:48:51,440 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:48:51,451 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:48:51,990 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 11:48:52,871 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2022-11-16 11:49:01,819 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:49:01,854 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:49:01,854 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:49:01,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:49:01 BoogieIcfgContainer [2022-11-16 11:49:01,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:49:01,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:49:01,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:49:01,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:49:01,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:48:45" (1/3) ... [2022-11-16 11:49:01,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29180577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:49:01, skipping insertion in model container [2022-11-16 11:49:01,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:49" (2/3) ... [2022-11-16 11:49:01,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29180577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:49:01, skipping insertion in model container [2022-11-16 11:49:01,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:49:01" (3/3) ... [2022-11-16 11:49:01,878 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-11-16 11:49:01,904 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:49:01,905 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:49:02,044 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:49:02,051 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;@6ea945e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:49:02,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:49:02,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 2085 states, 1498 states have (on average 1.3377837116154874) internal successors, (2004), 1539 states have internal predecessors, (2004), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) [2022-11-16 11:49:02,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 11:49:02,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:49:02,101 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:02,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:49:02,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:02,106 INFO L85 PathProgramCache]: Analyzing trace with hash 576527519, now seen corresponding path program 1 times [2022-11-16 11:49:02,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:02,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54672364] [2022-11-16 11:49:02,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:02,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:49:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:49:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:49:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:49:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:49:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:49:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:49:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:49:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,342 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 11:49:03,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:03,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54672364] [2022-11-16 11:49:03,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54672364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:03,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:03,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:49:03,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192845316] [2022-11-16 11:49:03,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:03,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:49:03,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:03,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:49:03,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:49:03,403 INFO L87 Difference]: Start difference. First operand has 2085 states, 1498 states have (on average 1.3377837116154874) internal successors, (2004), 1539 states have internal predecessors, (2004), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-16 11:49:08,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:49:17,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:49:17,542 INFO L93 Difference]: Finished difference Result 6627 states and 9753 transitions. [2022-11-16 11:49:17,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:49:17,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2022-11-16 11:49:17,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:49:17,610 INFO L225 Difference]: With dead ends: 6627 [2022-11-16 11:49:17,611 INFO L226 Difference]: Without dead ends: 4510 [2022-11-16 11:49:17,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:49:17,636 INFO L413 NwaCegarLoop]: 2788 mSDtfsCounter, 4051 mSDsluCounter, 3612 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 1349 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4372 SdHoareTripleChecker+Valid, 6400 SdHoareTripleChecker+Invalid, 3704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1349 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:49:17,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4372 Valid, 6400 Invalid, 3704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1349 Valid, 2354 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2022-11-16 11:49:17,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4510 states. [2022-11-16 11:49:18,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4510 to 4008. [2022-11-16 11:49:18,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 2905 states have (on average 1.3304647160068848) internal successors, (3865), 2948 states have internal predecessors, (3865), 866 states have call successors, (866), 237 states have call predecessors, (866), 236 states have return successors, (859), 837 states have call predecessors, (859), 859 states have call successors, (859) [2022-11-16 11:49:18,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 5590 transitions. [2022-11-16 11:49:18,095 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 5590 transitions. Word has length 69 [2022-11-16 11:49:18,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:49:18,096 INFO L495 AbstractCegarLoop]: Abstraction has 4008 states and 5590 transitions. [2022-11-16 11:49:18,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-16 11:49:18,097 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 5590 transitions. [2022-11-16 11:49:18,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-16 11:49:18,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:49:18,113 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:18,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:49:18,114 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:49:18,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:18,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1768927405, now seen corresponding path program 1 times [2022-11-16 11:49:18,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:18,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839468389] [2022-11-16 11:49:18,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:18,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:18,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:49:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:18,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:49:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:49:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:18,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:49:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:18,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:49:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:49:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:18,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:49:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:18,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:49:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:18,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 11:49:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 11:49:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:18,748 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 11:49:18,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:18,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839468389] [2022-11-16 11:49:18,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839468389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:18,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:18,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:49:18,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433018113] [2022-11-16 11:49:18,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:18,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:49:18,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:18,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:49:18,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:49:18,758 INFO L87 Difference]: Start difference. First operand 4008 states and 5590 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:49:23,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:49:30,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:49:34,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:49:34,651 INFO L93 Difference]: Finished difference Result 12618 states and 17802 transitions. [2022-11-16 11:49:34,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:49:34,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2022-11-16 11:49:34,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:49:34,722 INFO L225 Difference]: With dead ends: 12618 [2022-11-16 11:49:34,722 INFO L226 Difference]: Without dead ends: 8631 [2022-11-16 11:49:34,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:49:34,749 INFO L413 NwaCegarLoop]: 2745 mSDtfsCounter, 3843 mSDsluCounter, 3488 mSDsCounter, 0 mSdLazyCounter, 2433 mSolverCounterSat, 1300 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4175 SdHoareTripleChecker+Valid, 6233 SdHoareTripleChecker+Invalid, 3735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1300 IncrementalHoareTripleChecker+Valid, 2433 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:49:34,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4175 Valid, 6233 Invalid, 3735 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1300 Valid, 2433 Invalid, 2 Unknown, 0 Unchecked, 15.1s Time] [2022-11-16 11:49:34,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8631 states. [2022-11-16 11:49:35,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8631 to 7590. [2022-11-16 11:49:35,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7590 states, 5504 states have (on average 1.3248546511627908) internal successors, (7292), 5585 states have internal predecessors, (7292), 1627 states have call successors, (1627), 459 states have call predecessors, (1627), 458 states have return successors, (1620), 1575 states have call predecessors, (1620), 1620 states have call successors, (1620) [2022-11-16 11:49:35,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7590 states to 7590 states and 10539 transitions. [2022-11-16 11:49:35,227 INFO L78 Accepts]: Start accepts. Automaton has 7590 states and 10539 transitions. Word has length 88 [2022-11-16 11:49:35,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:49:35,230 INFO L495 AbstractCegarLoop]: Abstraction has 7590 states and 10539 transitions. [2022-11-16 11:49:35,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:49:35,231 INFO L276 IsEmpty]: Start isEmpty. Operand 7590 states and 10539 transitions. [2022-11-16 11:49:35,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 11:49:35,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:49:35,238 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:35,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:49:35,239 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:49:35,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:35,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1616646081, now seen corresponding path program 1 times [2022-11-16 11:49:35,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:35,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773137585] [2022-11-16 11:49:35,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:35,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:35,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:49:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:35,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:49:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:49:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:35,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:49:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:35,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:49:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:35,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:49:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:35,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:49:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:35,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:49:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:35,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 11:49:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:35,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:49:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:35,887 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 11:49:35,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:35,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773137585] [2022-11-16 11:49:35,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773137585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:35,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:35,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:49:35,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332577081] [2022-11-16 11:49:35,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:35,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:49:35,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:35,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:49:35,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:49:35,890 INFO L87 Difference]: Start difference. First operand 7590 states and 10539 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:49:39,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:49:48,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:49:59,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:49:59,211 INFO L93 Difference]: Finished difference Result 29336 states and 42843 transitions. [2022-11-16 11:49:59,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:49:59,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2022-11-16 11:49:59,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:49:59,403 INFO L225 Difference]: With dead ends: 29336 [2022-11-16 11:49:59,403 INFO L226 Difference]: Without dead ends: 21767 [2022-11-16 11:49:59,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:49:59,455 INFO L413 NwaCegarLoop]: 2540 mSDtfsCounter, 7318 mSDsluCounter, 4367 mSDsCounter, 0 mSdLazyCounter, 5147 mSolverCounterSat, 3953 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7761 SdHoareTripleChecker+Valid, 6907 SdHoareTripleChecker+Invalid, 9102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3953 IncrementalHoareTripleChecker+Valid, 5147 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:49:59,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7761 Valid, 6907 Invalid, 9102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3953 Valid, 5147 Invalid, 2 Unknown, 0 Unchecked, 21.9s Time] [2022-11-16 11:49:59,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21767 states. [2022-11-16 11:50:00,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21767 to 19128. [2022-11-16 11:50:00,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19128 states, 13890 states have (on average 1.3133189344852412) internal successors, (18242), 13998 states have internal predecessors, (18242), 4033 states have call successors, (4033), 901 states have call predecessors, (4033), 1204 states have return successors, (5226), 4302 states have call predecessors, (5226), 4026 states have call successors, (5226) [2022-11-16 11:50:01,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19128 states to 19128 states and 27501 transitions. [2022-11-16 11:50:01,004 INFO L78 Accepts]: Start accepts. Automaton has 19128 states and 27501 transitions. Word has length 93 [2022-11-16 11:50:01,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:50:01,005 INFO L495 AbstractCegarLoop]: Abstraction has 19128 states and 27501 transitions. [2022-11-16 11:50:01,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:50:01,006 INFO L276 IsEmpty]: Start isEmpty. Operand 19128 states and 27501 transitions. [2022-11-16 11:50:01,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-16 11:50:01,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:50:01,010 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:50:01,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:50:01,011 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:50:01,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:01,011 INFO L85 PathProgramCache]: Analyzing trace with hash -21120825, now seen corresponding path program 1 times [2022-11-16 11:50:01,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:01,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066370106] [2022-11-16 11:50:01,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:01,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:01,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:50:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:50:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:50:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:50:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:50:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:50:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:50:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:50:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:50:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:50:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:50:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 11:50:02,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:50:02,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066370106] [2022-11-16 11:50:02,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066370106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:50:02,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:50:02,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:50:02,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93204863] [2022-11-16 11:50:02,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:50:02,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:50:02,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:50:02,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:50:02,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:50:02,198 INFO L87 Difference]: Start difference. First operand 19128 states and 27501 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 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) [2022-11-16 11:50:05,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:50:18,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:50:18,675 INFO L93 Difference]: Finished difference Result 64481 states and 102714 transitions. [2022-11-16 11:50:18,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:50:18,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 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 92 [2022-11-16 11:50:18,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:50:19,022 INFO L225 Difference]: With dead ends: 64481 [2022-11-16 11:50:19,023 INFO L226 Difference]: Without dead ends: 45374 [2022-11-16 11:50:19,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:50:19,230 INFO L413 NwaCegarLoop]: 2939 mSDtfsCounter, 4620 mSDsluCounter, 5339 mSDsCounter, 0 mSdLazyCounter, 3473 mSolverCounterSat, 1558 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4930 SdHoareTripleChecker+Valid, 8278 SdHoareTripleChecker+Invalid, 5032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1558 IncrementalHoareTripleChecker+Valid, 3473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:50:19,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4930 Valid, 8278 Invalid, 5032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1558 Valid, 3473 Invalid, 1 Unknown, 0 Unchecked, 14.3s Time] [2022-11-16 11:50:19,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45374 states. [2022-11-16 11:50:22,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45374 to 41194. [2022-11-16 11:50:22,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41194 states, 29998 states have (on average 1.3083872258150544) internal successors, (39249), 30172 states have internal predecessors, (39249), 8447 states have call successors, (8447), 1801 states have call predecessors, (8447), 2748 states have return successors, (14768), 9384 states have call predecessors, (14768), 8440 states have call successors, (14768) [2022-11-16 11:50:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41194 states to 41194 states and 62464 transitions. [2022-11-16 11:50:22,735 INFO L78 Accepts]: Start accepts. Automaton has 41194 states and 62464 transitions. Word has length 92 [2022-11-16 11:50:22,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:50:22,736 INFO L495 AbstractCegarLoop]: Abstraction has 41194 states and 62464 transitions. [2022-11-16 11:50:22,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 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) [2022-11-16 11:50:22,736 INFO L276 IsEmpty]: Start isEmpty. Operand 41194 states and 62464 transitions. [2022-11-16 11:50:22,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 11:50:22,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:50:22,739 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:50:22,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:50:22,740 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:50:22,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:22,740 INFO L85 PathProgramCache]: Analyzing trace with hash -656167517, now seen corresponding path program 1 times [2022-11-16 11:50:22,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:22,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400032660] [2022-11-16 11:50:22,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:22,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:23,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:50:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:23,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:50:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:23,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:50:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:23,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:50:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:23,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:50:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:23,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:50:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:23,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:50:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:23,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:50:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:24,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:50:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:24,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:50:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:50:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:24,058 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 11:50:24,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:50:24,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400032660] [2022-11-16 11:50:24,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400032660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:50:24,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:50:24,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:50:24,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458806475] [2022-11-16 11:50:24,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:50:24,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:50:24,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:50:24,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:50:24,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:50:24,061 INFO L87 Difference]: Start difference. First operand 41194 states and 62464 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 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) [2022-11-16 11:50:39,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:50:39,412 INFO L93 Difference]: Finished difference Result 131795 states and 225459 transitions. [2022-11-16 11:50:39,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:50:39,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 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 93 [2022-11-16 11:50:39,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:50:40,571 INFO L225 Difference]: With dead ends: 131795 [2022-11-16 11:50:40,571 INFO L226 Difference]: Without dead ends: 90622 [2022-11-16 11:50:41,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:50:41,194 INFO L413 NwaCegarLoop]: 2917 mSDtfsCounter, 5953 mSDsluCounter, 3956 mSDsCounter, 0 mSdLazyCounter, 2491 mSolverCounterSat, 2754 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6269 SdHoareTripleChecker+Valid, 6873 SdHoareTripleChecker+Invalid, 5245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2754 IncrementalHoareTripleChecker+Valid, 2491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:50:41,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6269 Valid, 6873 Invalid, 5245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2754 Valid, 2491 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-11-16 11:50:41,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90622 states. [2022-11-16 11:50:47,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90622 to 83295. [2022-11-16 11:50:47,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83295 states, 60647 states have (on average 1.3052747868814616) internal successors, (79161), 60953 states have internal predecessors, (79161), 17003 states have call successors, (17003), 3601 states have call predecessors, (17003), 5644 states have return successors, (37764), 19068 states have call predecessors, (37764), 16996 states have call successors, (37764) [2022-11-16 11:50:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83295 states to 83295 states and 133928 transitions. [2022-11-16 11:50:48,869 INFO L78 Accepts]: Start accepts. Automaton has 83295 states and 133928 transitions. Word has length 93 [2022-11-16 11:50:48,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:50:48,869 INFO L495 AbstractCegarLoop]: Abstraction has 83295 states and 133928 transitions. [2022-11-16 11:50:48,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 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) [2022-11-16 11:50:48,870 INFO L276 IsEmpty]: Start isEmpty. Operand 83295 states and 133928 transitions. [2022-11-16 11:50:48,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-16 11:50:48,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:50:48,873 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:50:48,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:50:48,874 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:50:48,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:48,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1132226378, now seen corresponding path program 1 times [2022-11-16 11:50:48,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:48,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007260104] [2022-11-16 11:50:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:48,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:49,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:50:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:49,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:50:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:49,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:50:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:50:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:49,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:50:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:49,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:50:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:49,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:50:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:49,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:50:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:49,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:50:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:49,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:50:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:49,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:50:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 11:50:49,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:50:49,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007260104] [2022-11-16 11:50:49,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007260104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:50:49,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:50:49,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:50:49,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741469166] [2022-11-16 11:50:49,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:50:49,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:50:49,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:50:49,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:50:49,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:50:49,364 INFO L87 Difference]: Start difference. First operand 83295 states and 133928 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 3 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) [2022-11-16 11:51:03,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:03,370 INFO L93 Difference]: Finished difference Result 90620 states and 148828 transitions. [2022-11-16 11:51:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:51:03,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 3 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 94 [2022-11-16 11:51:03,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:04,036 INFO L225 Difference]: With dead ends: 90620 [2022-11-16 11:51:04,036 INFO L226 Difference]: Without dead ends: 90617 [2022-11-16 11:51:04,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:04,089 INFO L413 NwaCegarLoop]: 2928 mSDtfsCounter, 5944 mSDsluCounter, 3960 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 2736 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6259 SdHoareTripleChecker+Valid, 6888 SdHoareTripleChecker+Invalid, 5218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2736 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:04,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6259 Valid, 6888 Invalid, 5218 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2736 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-16 11:51:04,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90617 states. [2022-11-16 11:51:08,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90617 to 83296. [2022-11-16 11:51:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83296 states, 60648 states have (on average 1.3052697533306952) internal successors, (79162), 60954 states have internal predecessors, (79162), 17003 states have call successors, (17003), 3601 states have call predecessors, (17003), 5644 states have return successors, (37764), 19068 states have call predecessors, (37764), 16996 states have call successors, (37764) [2022-11-16 11:51:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83296 states to 83296 states and 133929 transitions. [2022-11-16 11:51:10,075 INFO L78 Accepts]: Start accepts. Automaton has 83296 states and 133929 transitions. Word has length 94 [2022-11-16 11:51:10,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:10,076 INFO L495 AbstractCegarLoop]: Abstraction has 83296 states and 133929 transitions. [2022-11-16 11:51:10,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 3 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) [2022-11-16 11:51:10,076 INFO L276 IsEmpty]: Start isEmpty. Operand 83296 states and 133929 transitions. [2022-11-16 11:51:10,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:51:10,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:10,079 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:51:10,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:51:10,080 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:51:10,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:10,080 INFO L85 PathProgramCache]: Analyzing trace with hash 737867142, now seen corresponding path program 1 times [2022-11-16 11:51:10,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:10,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543528753] [2022-11-16 11:51:10,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:10,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:10,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:51:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:51:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:51:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:10,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:51:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:10,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:51:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:11,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:51:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:11,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:51:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:11,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:51:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:11,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:51:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:11,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:51:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:11,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:51:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:11,095 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 11:51:11,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:11,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543528753] [2022-11-16 11:51:11,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543528753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:11,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:11,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:51:11,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866283941] [2022-11-16 11:51:11,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:11,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:51:11,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:11,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:51:11,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:51:11,098 INFO L87 Difference]: Start difference. First operand 83296 states and 133929 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 3 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) [2022-11-16 11:51:29,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:29,444 INFO L93 Difference]: Finished difference Result 209395 states and 345748 transitions. [2022-11-16 11:51:29,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:51:29,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 3 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 95 [2022-11-16 11:51:29,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:30,441 INFO L225 Difference]: With dead ends: 209395 [2022-11-16 11:51:30,441 INFO L226 Difference]: Without dead ends: 126120 [2022-11-16 11:51:31,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:31,419 INFO L413 NwaCegarLoop]: 3740 mSDtfsCounter, 4785 mSDsluCounter, 4615 mSDsCounter, 0 mSdLazyCounter, 2730 mSolverCounterSat, 2220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5096 SdHoareTripleChecker+Valid, 8355 SdHoareTripleChecker+Invalid, 4950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2220 IncrementalHoareTripleChecker+Valid, 2730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:31,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5096 Valid, 8355 Invalid, 4950 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2220 Valid, 2730 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2022-11-16 11:51:31,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126120 states. [2022-11-16 11:51:38,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126120 to 114560. [2022-11-16 11:51:39,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114560 states, 83367 states have (on average 1.3086113210263053) internal successors, (109095), 84009 states have internal predecessors, (109095), 23488 states have call successors, (23488), 5374 states have call predecessors, (23488), 7704 states have return successors, (50827), 25632 states have call predecessors, (50827), 23477 states have call successors, (50827) [2022-11-16 11:51:40,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114560 states to 114560 states and 183410 transitions. [2022-11-16 11:51:40,559 INFO L78 Accepts]: Start accepts. Automaton has 114560 states and 183410 transitions. Word has length 95 [2022-11-16 11:51:40,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:40,560 INFO L495 AbstractCegarLoop]: Abstraction has 114560 states and 183410 transitions. [2022-11-16 11:51:40,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 3 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) [2022-11-16 11:51:40,560 INFO L276 IsEmpty]: Start isEmpty. Operand 114560 states and 183410 transitions. [2022-11-16 11:51:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:51:40,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:40,565 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:51:40,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:51:40,565 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:51:40,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:40,566 INFO L85 PathProgramCache]: Analyzing trace with hash -580963575, now seen corresponding path program 1 times [2022-11-16 11:51:40,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:40,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847247357] [2022-11-16 11:51:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:40,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:51:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:51:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:51:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:51:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:51:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:51:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:51:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:51:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 11:51:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:51:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:51:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,938 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-16 11:51:40,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:40,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847247357] [2022-11-16 11:51:40,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847247357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:40,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:40,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:51:40,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084196505] [2022-11-16 11:51:40,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:40,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:51:40,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:40,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:51:40,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:51:40,941 INFO L87 Difference]: Start difference. First operand 114560 states and 183410 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)