./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro --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 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- 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-8393723 [2022-11-18 19:47:42,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:47:42,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:47:42,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:47:42,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:47:42,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:47:42,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:47:42,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:47:42,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:47:42,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:47:42,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:47:42,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:47:42,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:47:42,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:47:42,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:47:42,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:47:42,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:47:42,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:47:42,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:47:42,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:47:42,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:47:42,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:47:42,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:47:42,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:47:42,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:47:42,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:47:42,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:47:42,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:47:42,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:47:42,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:47:42,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:47:42,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:47:42,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:47:42,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:47:42,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:47:42,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:47:42,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:47:42,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:47:42,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:47:42,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:47:42,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:47:42,539 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 19:47:42,565 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:47:42,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:47:42,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:47:42,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:47:42,566 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:47:42,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:47:42,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:47:42,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:47:42,568 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:47:42,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:47:42,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:47:42,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:47:42,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:47:42,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:47:42,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:47:42,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:47:42,570 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:47:42,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:47:42,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:47:42,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:47:42,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:47:42,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:47:42,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:47:42,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:47:42,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:47:42,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:47:42,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:47:42,573 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:47:42,573 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:47:42,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:47:42,574 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_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2022-11-18 19:47:42,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:47:42,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:47:42,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:47:42,901 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:47:42,902 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:47:42,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-18 19:47:42,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/data/0cfc95e9f/cec33294c78e463ca72c5ffc10bc55b9/FLAG348946723 [2022-11-18 19:47:43,999 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:47:44,000 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-18 19:47:44,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/data/0cfc95e9f/cec33294c78e463ca72c5ffc10bc55b9/FLAG348946723 [2022-11-18 19:47:44,347 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/data/0cfc95e9f/cec33294c78e463ca72c5ffc10bc55b9 [2022-11-18 19:47:44,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:47:44,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:47:44,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:47:44,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:47:44,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:47:44,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:47:44" (1/1) ... [2022-11-18 19:47:44,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c5c011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:44, skipping insertion in model container [2022-11-18 19:47:44,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:47:44" (1/1) ... [2022-11-18 19:47:44,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:47:44,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:47:48,546 WARN L234 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_b95d41e6-92cb-4d83-94c3-1757c647354b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-11-18 19:47:48,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:47:48,636 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:47:49,399 WARN L234 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_b95d41e6-92cb-4d83-94c3-1757c647354b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-11-18 19:47:49,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:47:49,760 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:47:49,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49 WrapperNode [2022-11-18 19:47:49,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:47:49,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:47:49,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:47:49,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:47:49,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49" (1/1) ... [2022-11-18 19:47:49,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49" (1/1) ... [2022-11-18 19:47:50,142 INFO L138 Inliner]: procedures = 490, calls = 4855, calls flagged for inlining = 140, calls inlined = 118, statements flattened = 7470 [2022-11-18 19:47:50,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:47:50,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:47:50,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:47:50,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:47:50,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49" (1/1) ... [2022-11-18 19:47:50,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49" (1/1) ... [2022-11-18 19:47:50,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49" (1/1) ... [2022-11-18 19:47:50,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49" (1/1) ... [2022-11-18 19:47:50,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49" (1/1) ... [2022-11-18 19:47:50,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49" (1/1) ... [2022-11-18 19:47:50,509 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49" (1/1) ... [2022-11-18 19:47:50,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49" (1/1) ... [2022-11-18 19:47:50,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:47:50,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:47:50,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:47:50,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:47:50,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49" (1/1) ... [2022-11-18 19:47:50,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:47:50,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:50,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:47:50,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b95d41e6-92cb-4d83-94c3-1757c647354b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:47:50,673 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-18 19:47:50,673 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-18 19:47:50,674 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_prepare_pkt [2022-11-18 19:47:50,674 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_prepare_pkt [2022-11-18 19:47:50,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 19:47:50,674 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 19:47:50,674 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-18 19:47:50,675 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-18 19:47:50,675 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_setup [2022-11-18 19:47:50,675 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_setup [2022-11-18 19:47:50,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-18 19:47:50,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-18 19:47:50,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 19:47:50,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 19:47:50,676 INFO L130 BoogieDeclarations]: Found specification of procedure ll_dequeue [2022-11-18 19:47:50,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_dequeue [2022-11-18 19:47:50,676 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_close [2022-11-18 19:47:50,677 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_close [2022-11-18 19:47:50,677 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-18 19:47:50,677 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-18 19:47:50,677 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-18 19:47:50,678 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-18 19:47:50,678 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 19:47:50,678 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 19:47:50,678 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_flush [2022-11-18 19:47:50,678 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_flush [2022-11-18 19:47:50,678 INFO L130 BoogieDeclarations]: Found specification of procedure ath_dequeue [2022-11-18 19:47:50,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_dequeue [2022-11-18 19:47:50,679 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-18 19:47:50,679 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-18 19:47:50,679 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-18 19:47:50,679 INFO L130 BoogieDeclarations]: Found specification of procedure h5_link_control [2022-11-18 19:47:50,680 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_link_control [2022-11-18 19:47:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-18 19:47:50,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-18 19:47:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 19:47:50,680 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 19:47:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure bt_skb_alloc___1 [2022-11-18 19:47:50,680 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_skb_alloc___1 [2022-11-18 19:47:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2022-11-18 19:47:50,681 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2022-11-18 19:47:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:47:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure h4_enqueue [2022-11-18 19:47:50,682 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_enqueue [2022-11-18 19:47:50,682 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-18 19:47:50,682 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-18 19:47:50,682 INFO L130 BoogieDeclarations]: Found specification of procedure ath_hci_uart_work [2022-11-18 19:47:50,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_hci_uart_work [2022-11-18 19:47:50,683 INFO L130 BoogieDeclarations]: Found specification of procedure btbcm_set_bdaddr [2022-11-18 19:47:50,683 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_setup [2022-11-18 19:47:50,683 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_setup [2022-11-18 19:47:50,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 19:47:50,683 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 19:47:50,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 19:47:50,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 19:47:50,685 INFO L130 BoogieDeclarations]: Found specification of procedure __ll_do_awake [2022-11-18 19:47:50,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __ll_do_awake [2022-11-18 19:47:50,686 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-11-18 19:47:50,686 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-11-18 19:47:50,686 INFO L130 BoogieDeclarations]: Found specification of procedure h5_peer_reset [2022-11-18 19:47:50,686 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_peer_reset [2022-11-18 19:47:50,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:47:50,687 INFO L130 BoogieDeclarations]: Found specification of procedure h5_enqueue [2022-11-18 19:47:50,687 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_enqueue [2022-11-18 19:47:50,687 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_complete_rx_pkt [2022-11-18 19:47:50,687 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_complete_rx_pkt [2022-11-18 19:47:50,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 19:47:50,688 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 19:47:50,688 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_unregister_proto [2022-11-18 19:47:50,688 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_unregister_proto [2022-11-18 19:47:50,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-18 19:47:50,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-18 19:47:50,689 INFO L130 BoogieDeclarations]: Found specification of procedure hci_get_drvdata [2022-11-18 19:47:50,689 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_get_drvdata [2022-11-18 19:47:50,689 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_close [2022-11-18 19:47:50,689 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_close [2022-11-18 19:47:50,690 INFO L130 BoogieDeclarations]: Found specification of procedure btintel_set_bdaddr [2022-11-18 19:47:50,690 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-18 19:47:50,690 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-18 19:47:50,691 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_recv [2022-11-18 19:47:50,691 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_recv [2022-11-18 19:47:50,691 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_register_proto [2022-11-18 19:47:50,691 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_register_proto [2022-11-18 19:47:50,691 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_recv [2022-11-18 19:47:50,692 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_recv [2022-11-18 19:47:50,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-18 19:47:50,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-18 19:47:50,692 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_flush [2022-11-18 19:47:50,692 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_flush [2022-11-18 19:47:50,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:47:50,693 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-11-18 19:47:50,693 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-11-18 19:47:50,693 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-11-18 19:47:50,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-11-18 19:47:50,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:47:50,694 INFO L130 BoogieDeclarations]: Found specification of procedure bscp_get_crc [2022-11-18 19:47:50,695 INFO L138 BoogieDeclarations]: Found implementation of procedure bscp_get_crc [2022-11-18 19:47:50,695 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 19:47:50,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 19:47:50,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:47:50,696 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 19:47:50,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 19:47:50,697 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-11-18 19:47:50,697 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-11-18 19:47:50,697 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_init_work [2022-11-18 19:47:50,697 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_init_work [2022-11-18 19:47:50,698 INFO L130 BoogieDeclarations]: Found specification of procedure ll_close [2022-11-18 19:47:50,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_close [2022-11-18 19:47:50,698 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-18 19:47:50,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-18 19:47:50,698 INFO L130 BoogieDeclarations]: Found specification of procedure hci_register_dev [2022-11-18 19:47:50,699 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_register_dev [2022-11-18 19:47:50,699 INFO L130 BoogieDeclarations]: Found specification of procedure send_hcill_cmd [2022-11-18 19:47:50,699 INFO L138 BoogieDeclarations]: Found implementation of procedure send_hcill_cmd [2022-11-18 19:47:50,699 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-18 19:47:50,699 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-18 19:47:50,700 INFO L130 BoogieDeclarations]: Found specification of procedure ath_flush [2022-11-18 19:47:50,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_flush [2022-11-18 19:47:50,701 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_msgdelim [2022-11-18 19:47:50,704 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_msgdelim [2022-11-18 19:47:50,704 INFO L130 BoogieDeclarations]: Found specification of procedure h4_dequeue [2022-11-18 19:47:50,704 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_dequeue [2022-11-18 19:47:50,704 INFO L130 BoogieDeclarations]: Found specification of procedure ath_wakeup_ar3k [2022-11-18 19:47:50,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_wakeup_ar3k [2022-11-18 19:47:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure h5_prepare_pkt [2022-11-18 19:47:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_prepare_pkt [2022-11-18 19:47:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-18 19:47:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-18 19:47:50,714 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-18 19:47:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-18 19:47:50,715 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_open [2022-11-18 19:47:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_open [2022-11-18 19:47:50,715 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-18 19:47:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-18 19:47:50,715 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_close [2022-11-18 19:47:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_close [2022-11-18 19:47:50,715 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 19:47:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 19:47:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure h5_cfg_field [2022-11-18 19:47:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_cfg_field [2022-11-18 19:47:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:47:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:47:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-18 19:47:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-18 19:47:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure h5_flush [2022-11-18 19:47:50,717 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_flush [2022-11-18 19:47:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-18 19:47:50,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-18 19:47:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure ll_check_data_len [2022-11-18 19:47:50,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_check_data_len [2022-11-18 19:47:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-18 19:47:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-18 19:47:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 19:47:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 19:47:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 19:47:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 19:47:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_one_byte [2022-11-18 19:47:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_one_byte [2022-11-18 19:47:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-18 19:47:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-18 19:47:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-11-18 19:47:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-11-18 19:47:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_set_baudrate [2022-11-18 19:47:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_set_baudrate [2022-11-18 19:47:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-11-18 19:47:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-11-18 19:47:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-18 19:47:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-18 19:47:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure ath_open [2022-11-18 19:47:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_open [2022-11-18 19:47:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure ath_setup [2022-11-18 19:47:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_setup [2022-11-18 19:47:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 19:47:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 19:47:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_dequeue [2022-11-18 19:47:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_dequeue [2022-11-18 19:47:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 19:47:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 19:47:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure hci_free_dev [2022-11-18 19:47:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_free_dev [2022-11-18 19:47:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2022-11-18 19:47:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2022-11-18 19:47:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 19:47:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 19:47:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure h4_open [2022-11-18 19:47:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_open [2022-11-18 19:47:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-18 19:47:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-18 19:47:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-18 19:47:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-18 19:47:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_send_frame [2022-11-18 19:47:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_send_frame [2022-11-18 19:47:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:47:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure __hci_cmd_sync [2022-11-18 19:47:50,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __hci_cmd_sync [2022-11-18 19:47:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure ath_close [2022-11-18 19:47:50,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_close [2022-11-18 19:47:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_crc_update [2022-11-18 19:47:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_crc_update [2022-11-18 19:47:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-18 19:47:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-18 19:47:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:47:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-18 19:47:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-18 19:47:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-18 19:47:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-18 19:47:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-18 19:47:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-18 19:47:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure hci_recv_frame [2022-11-18 19:47:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_recv_frame [2022-11-18 19:47:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 19:47:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure h4_close [2022-11-18 19:47:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_close [2022-11-18 19:47:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-18 19:47:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-18 19:47:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure h5_reset_rx [2022-11-18 19:47:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_reset_rx [2022-11-18 19:47:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-18 19:47:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-18 19:47:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_termios [2022-11-18 19:47:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_termios [2022-11-18 19:47:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv [2022-11-18 19:47:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv [2022-11-18 19:47:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-18 19:47:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-18 19:47:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-18 19:47:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-18 19:47:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-18 19:47:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-18 19:47:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure ath_recv [2022-11-18 19:47:50,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_recv [2022-11-18 19:47:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_flush [2022-11-18 19:47:50,737 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_flush [2022-11-18 19:47:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure h5_close [2022-11-18 19:47:50,737 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_close [2022-11-18 19:47:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_dequeue [2022-11-18 19:47:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_dequeue [2022-11-18 19:47:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-18 19:47:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-18 19:47:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_one_byte [2022-11-18 19:47:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_one_byte [2022-11-18 19:47:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_open [2022-11-18 19:47:50,739 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_open [2022-11-18 19:47:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure h5_dequeue [2022-11-18 19:47:50,739 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_dequeue [2022-11-18 19:47:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_delim [2022-11-18 19:47:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_delim [2022-11-18 19:47:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_close [2022-11-18 19:47:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_close [2022-11-18 19:47:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-18 19:47:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-18 19:47:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure ath_enqueue [2022-11-18 19:47:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_enqueue [2022-11-18 19:47:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure h5_open [2022-11-18 19:47:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_open [2022-11-18 19:47:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-18 19:47:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-18 19:47:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure ll_enqueue [2022-11-18 19:47:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_enqueue [2022-11-18 19:47:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-18 19:47:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-18 19:47:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv_buf [2022-11-18 19:47:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv_buf [2022-11-18 19:47:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 19:47:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 19:47:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:47:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-11-18 19:47:50,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-11-18 19:47:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-18 19:47:50,743 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-18 19:47:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 19:47:50,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 19:47:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure tty_driver_flush_buffer [2022-11-18 19:47:50,743 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_driver_flush_buffer [2022-11-18 19:47:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure h5_recv [2022-11-18 19:47:50,743 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_recv [2022-11-18 19:47:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure ll_open [2022-11-18 19:47:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_open [2022-11-18 19:47:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tx_wakeup [2022-11-18 19:47:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tx_wakeup [2022-11-18 19:47:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-18 19:47:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-18 19:47:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-18 19:47:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-18 19:47:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_set_baudrate [2022-11-18 19:47:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_set_baudrate [2022-11-18 19:47:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure ll_flush [2022-11-18 19:47:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_flush [2022-11-18 19:47:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_enqueue [2022-11-18 19:47:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_enqueue [2022-11-18 19:47:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure h5_complete_rx_pkt [2022-11-18 19:47:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_complete_rx_pkt [2022-11-18 19:47:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure ll_recv [2022-11-18 19:47:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_recv [2022-11-18 19:47:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_write_work [2022-11-18 19:47:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_write_work [2022-11-18 19:47:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-18 19:47:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-18 19:47:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-18 19:47:50,746 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-18 19:47:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-18 19:47:50,809 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-18 19:47:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_open [2022-11-18 19:47:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_open [2022-11-18 19:47:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_enqueue [2022-11-18 19:47:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_enqueue [2022-11-18 19:47:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-18 19:47:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-18 19:47:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-18 19:47:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-18 19:47:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:47:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-18 19:47:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-18 19:47:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure h4_flush [2022-11-18 19:47:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_flush [2022-11-18 19:47:52,137 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:47:52,148 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:47:52,930 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 19:48:08,352 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:48:08,383 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:48:08,383 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:48:08,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:48:08 BoogieIcfgContainer [2022-11-18 19:48:08,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:48:08,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:48:08,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:48:08,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:48:08,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:47:44" (1/3) ... [2022-11-18 19:48:08,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6305a26f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:48:08, skipping insertion in model container [2022-11-18 19:48:08,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:49" (2/3) ... [2022-11-18 19:48:08,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6305a26f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:48:08, skipping insertion in model container [2022-11-18 19:48:08,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:48:08" (3/3) ... [2022-11-18 19:48:08,402 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-18 19:48:08,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:48:08,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:48:08,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:48:08,609 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;@2497dbc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:48:08,610 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:48:08,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 2694 states, 1836 states have (on average 1.3616557734204793) internal successors, (2500), 1890 states have internal predecessors, (2500), 709 states have call successors, (709), 148 states have call predecessors, (709), 147 states have return successors, (699), 686 states have call predecessors, (699), 699 states have call successors, (699) [2022-11-18 19:48:08,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-18 19:48:08,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:08,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:08,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:08,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:08,675 INFO L85 PathProgramCache]: Analyzing trace with hash -985235251, now seen corresponding path program 1 times [2022-11-18 19:48:08,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:08,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669931234] [2022-11-18 19:48:08,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:08,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:10,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:48:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:10,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 19:48:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:10,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:10,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:48:10,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:10,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669931234] [2022-11-18 19:48:10,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669931234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:10,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:10,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:48:10,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123777521] [2022-11-18 19:48:10,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:10,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:48:10,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:10,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:48:10,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:48:10,560 INFO L87 Difference]: Start difference. First operand has 2694 states, 1836 states have (on average 1.3616557734204793) internal successors, (2500), 1890 states have internal predecessors, (2500), 709 states have call successors, (709), 148 states have call predecessors, (709), 147 states have return successors, (699), 686 states have call predecessors, (699), 699 states have call successors, (699) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 19:48:14,808 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 [] [2022-11-18 19:48:21,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:21,944 INFO L93 Difference]: Finished difference Result 6005 states and 9022 transitions. [2022-11-18 19:48:21,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:48:21,947 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), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-11-18 19:48:21,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:22,009 INFO L225 Difference]: With dead ends: 6005 [2022-11-18 19:48:22,010 INFO L226 Difference]: Without dead ends: 3275 [2022-11-18 19:48:22,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:48:22,046 INFO L413 NwaCegarLoop]: 3706 mSDtfsCounter, 4149 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 1245 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4509 SdHoareTripleChecker+Valid, 6316 SdHoareTripleChecker+Invalid, 2721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1245 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:22,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4509 Valid, 6316 Invalid, 2721 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1245 Valid, 1475 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2022-11-18 19:48:22,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2022-11-18 19:48:22,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 2911. [2022-11-18 19:48:22,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 1993 states have (on average 1.349222277972905) internal successors, (2689), 2035 states have internal predecessors, (2689), 740 states have call successors, (740), 178 states have call predecessors, (740), 177 states have return successors, (739), 726 states have call predecessors, (739), 739 states have call successors, (739) [2022-11-18 19:48:22,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4168 transitions. [2022-11-18 19:48:22,416 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4168 transitions. Word has length 56 [2022-11-18 19:48:22,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:22,418 INFO L495 AbstractCegarLoop]: Abstraction has 2911 states and 4168 transitions. [2022-11-18 19:48:22,418 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), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 19:48:22,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4168 transitions. [2022-11-18 19:48:22,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-18 19:48:22,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:22,436 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:22,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:48:22,437 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:22,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash -702330870, now seen corresponding path program 1 times [2022-11-18 19:48:22,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:22,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825358762] [2022-11-18 19:48:22,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:22,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:24,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:48:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:24,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-18 19:48:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:24,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:24,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 19:48:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:24,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 19:48:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:24,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 19:48:24,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:24,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825358762] [2022-11-18 19:48:24,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825358762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:24,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:24,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:48:24,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713898283] [2022-11-18 19:48:24,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:24,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:48:24,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:24,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:48:24,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:48:24,265 INFO L87 Difference]: Start difference. First operand 2911 states and 4168 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-18 19:48:31,820 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 [] [2022-11-18 19:48:58,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:58,860 INFO L93 Difference]: Finished difference Result 6744 states and 9993 transitions. [2022-11-18 19:48:58,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:48:58,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 72 [2022-11-18 19:48:58,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:58,892 INFO L225 Difference]: With dead ends: 6744 [2022-11-18 19:48:58,892 INFO L226 Difference]: Without dead ends: 3839 [2022-11-18 19:48:58,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:48:58,912 INFO L413 NwaCegarLoop]: 2613 mSDtfsCounter, 2730 mSDsluCounter, 14282 mSDsCounter, 0 mSdLazyCounter, 13343 mSolverCounterSat, 1958 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3121 SdHoareTripleChecker+Valid, 16895 SdHoareTripleChecker+Invalid, 15302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1958 IncrementalHoareTripleChecker+Valid, 13343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:58,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3121 Valid, 16895 Invalid, 15302 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1958 Valid, 13343 Invalid, 1 Unknown, 0 Unchecked, 33.6s Time] [2022-11-18 19:48:58,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2022-11-18 19:48:59,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 2918. [2022-11-18 19:48:59,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 1998 states have (on average 1.3483483483483483) internal successors, (2694), 2040 states have internal predecessors, (2694), 740 states have call successors, (740), 178 states have call predecessors, (740), 179 states have return successors, (744), 728 states have call predecessors, (744), 739 states have call successors, (744) [2022-11-18 19:48:59,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4178 transitions. [2022-11-18 19:48:59,125 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4178 transitions. Word has length 72 [2022-11-18 19:48:59,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:59,126 INFO L495 AbstractCegarLoop]: Abstraction has 2918 states and 4178 transitions. [2022-11-18 19:48:59,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-18 19:48:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4178 transitions. [2022-11-18 19:48:59,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-18 19:48:59,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:59,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:59,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:48:59,141 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:59,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:59,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1150612073, now seen corresponding path program 1 times [2022-11-18 19:48:59,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:59,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85916139] [2022-11-18 19:48:59,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:59,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:48:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 19:48:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:48:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 19:48:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:59,762 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:48:59,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:59,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85916139] [2022-11-18 19:48:59,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85916139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:59,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:59,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:48:59,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173392469] [2022-11-18 19:48:59,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:59,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:48:59,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:59,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:48:59,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:48:59,767 INFO L87 Difference]: Start difference. First operand 2918 states and 4178 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 19:49:04,370 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 [] [2022-11-18 19:49:08,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:49:19,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:19,216 INFO L93 Difference]: Finished difference Result 6752 states and 9998 transitions. [2022-11-18 19:49:19,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:49:19,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 81 [2022-11-18 19:49:19,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:19,250 INFO L225 Difference]: With dead ends: 6752 [2022-11-18 19:49:19,251 INFO L226 Difference]: Without dead ends: 3840 [2022-11-18 19:49:19,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:49:19,267 INFO L413 NwaCegarLoop]: 2589 mSDtfsCounter, 2759 mSDsluCounter, 5151 mSDsCounter, 0 mSdLazyCounter, 5467 mSolverCounterSat, 1988 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3139 SdHoareTripleChecker+Valid, 7740 SdHoareTripleChecker+Invalid, 7456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1988 IncrementalHoareTripleChecker+Valid, 5467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:19,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3139 Valid, 7740 Invalid, 7456 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1988 Valid, 5467 Invalid, 1 Unknown, 0 Unchecked, 19.0s Time] [2022-11-18 19:49:19,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2022-11-18 19:49:19,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 2932. [2022-11-18 19:49:19,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2012 states have (on average 1.3449304174950298) internal successors, (2706), 2054 states have internal predecessors, (2706), 740 states have call successors, (740), 178 states have call predecessors, (740), 179 states have return successors, (744), 728 states have call predecessors, (744), 739 states have call successors, (744) [2022-11-18 19:49:19,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 4190 transitions. [2022-11-18 19:49:19,456 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 4190 transitions. Word has length 81 [2022-11-18 19:49:19,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:19,457 INFO L495 AbstractCegarLoop]: Abstraction has 2932 states and 4190 transitions. [2022-11-18 19:49:19,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 19:49:19,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 4190 transitions. [2022-11-18 19:49:19,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-18 19:49:19,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:19,470 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:19,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:49:19,471 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:19,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:19,471 INFO L85 PathProgramCache]: Analyzing trace with hash 995239184, now seen corresponding path program 1 times [2022-11-18 19:49:19,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:19,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420588817] [2022-11-18 19:49:19,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:19,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:20,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 19:49:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:20,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 19:49:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:20,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 19:49:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:20,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:49:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:20,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:20,998 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 19:49:20,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:20,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420588817] [2022-11-18 19:49:20,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420588817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:20,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:20,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:49:20,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465998298] [2022-11-18 19:49:20,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:21,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:49:21,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:21,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:49:21,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:49:21,002 INFO L87 Difference]: Start difference. First operand 2932 states and 4190 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-18 19:49:27,855 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 [] [2022-11-18 19:49:30,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:49:52,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:52,927 INFO L93 Difference]: Finished difference Result 6776 states and 10016 transitions. [2022-11-18 19:49:52,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:49:52,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 83 [2022-11-18 19:49:52,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:52,959 INFO L225 Difference]: With dead ends: 6776 [2022-11-18 19:49:52,959 INFO L226 Difference]: Without dead ends: 3850 [2022-11-18 19:49:52,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:49:52,976 INFO L413 NwaCegarLoop]: 2609 mSDtfsCounter, 2741 mSDsluCounter, 14260 mSDsCounter, 0 mSdLazyCounter, 13345 mSolverCounterSat, 1956 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3133 SdHoareTripleChecker+Valid, 16869 SdHoareTripleChecker+Invalid, 15302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1956 IncrementalHoareTripleChecker+Valid, 13345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:52,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3133 Valid, 16869 Invalid, 15302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1956 Valid, 13345 Invalid, 1 Unknown, 0 Unchecked, 31.3s Time] [2022-11-18 19:49:52,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2022-11-18 19:49:53,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 2934. [2022-11-18 19:49:53,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2934 states, 2014 states have (on average 1.3445878848063555) internal successors, (2708), 2055 states have internal predecessors, (2708), 740 states have call successors, (740), 178 states have call predecessors, (740), 179 states have return successors, (744), 729 states have call predecessors, (744), 739 states have call successors, (744) [2022-11-18 19:49:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2934 states to 2934 states and 4192 transitions. [2022-11-18 19:49:53,228 INFO L78 Accepts]: Start accepts. Automaton has 2934 states and 4192 transitions. Word has length 83 [2022-11-18 19:49:53,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:53,229 INFO L495 AbstractCegarLoop]: Abstraction has 2934 states and 4192 transitions. [2022-11-18 19:49:53,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-18 19:49:53,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2934 states and 4192 transitions. [2022-11-18 19:49:53,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-18 19:49:53,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:53,246 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:53,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:49:53,246 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:53,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:53,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1929394297, now seen corresponding path program 1 times [2022-11-18 19:49:53,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:53,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413085671] [2022-11-18 19:49:53,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:53,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:49:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:49:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 19:49:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:49:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:49:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 19:49:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 19:49:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 19:49:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:49:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:49:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:49:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:49:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:53,846 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-18 19:49:53,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:53,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413085671] [2022-11-18 19:49:53,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413085671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:53,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:53,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:49:53,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121203358] [2022-11-18 19:49:53,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:53,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:49:53,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:53,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:49:53,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:49:53,865 INFO L87 Difference]: Start difference. First operand 2934 states and 4192 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 19:49:58,836 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 [] [2022-11-18 19:50:02,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:50:32,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:32,031 INFO L93 Difference]: Finished difference Result 11345 states and 17293 transitions. [2022-11-18 19:50:32,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:50:32,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2022-11-18 19:50:32,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:32,091 INFO L225 Difference]: With dead ends: 11345 [2022-11-18 19:50:32,091 INFO L226 Difference]: Without dead ends: 8417 [2022-11-18 19:50:32,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:50:32,105 INFO L413 NwaCegarLoop]: 2980 mSDtfsCounter, 12440 mSDsluCounter, 6769 mSDsCounter, 0 mSdLazyCounter, 11533 mSolverCounterSat, 10881 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13239 SdHoareTripleChecker+Valid, 9749 SdHoareTripleChecker+Invalid, 22415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10881 IncrementalHoareTripleChecker+Valid, 11533 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:32,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13239 Valid, 9749 Invalid, 22415 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10881 Valid, 11533 Invalid, 1 Unknown, 0 Unchecked, 36.9s Time] [2022-11-18 19:50:32,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8417 states. [2022-11-18 19:50:32,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8417 to 5781. [2022-11-18 19:50:32,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5781 states, 3965 states have (on average 1.3450189155107188) internal successors, (5333), 4048 states have internal predecessors, (5333), 1459 states have call successors, (1459), 353 states have call predecessors, (1459), 356 states have return successors, (1468), 1437 states have call predecessors, (1468), 1458 states have call successors, (1468) [2022-11-18 19:50:32,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5781 states to 5781 states and 8260 transitions. [2022-11-18 19:50:32,573 INFO L78 Accepts]: Start accepts. Automaton has 5781 states and 8260 transitions. Word has length 131 [2022-11-18 19:50:32,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:32,574 INFO L495 AbstractCegarLoop]: Abstraction has 5781 states and 8260 transitions. [2022-11-18 19:50:32,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 19:50:32,574 INFO L276 IsEmpty]: Start isEmpty. Operand 5781 states and 8260 transitions. [2022-11-18 19:50:32,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-18 19:50:32,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:32,593 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:32,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:50:32,594 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:32,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:32,595 INFO L85 PathProgramCache]: Analyzing trace with hash 410232436, now seen corresponding path program 1 times [2022-11-18 19:50:32,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:32,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78762966] [2022-11-18 19:50:32,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:32,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:50:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:33,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 19:50:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:33,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:50:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:33,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:50:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 19:50:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:33,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:50:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:33,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:50:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:33,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:50:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:33,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:50:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:33,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:50:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:33,185 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 19:50:33,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:33,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78762966] [2022-11-18 19:50:33,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78762966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:33,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:33,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:50:33,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828454324] [2022-11-18 19:50:33,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:33,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:50:33,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:33,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:50:33,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:50:33,188 INFO L87 Difference]: Start difference. First operand 5781 states and 8260 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-18 19:50:37,161 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 [] [2022-11-18 19:50:40,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:50:49,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:49,408 INFO L93 Difference]: Finished difference Result 13371 states and 19648 transitions. [2022-11-18 19:50:49,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:50:49,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 94 [2022-11-18 19:50:49,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:49,469 INFO L225 Difference]: With dead ends: 13371 [2022-11-18 19:50:49,469 INFO L226 Difference]: Without dead ends: 7596 [2022-11-18 19:50:49,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:50:49,500 INFO L413 NwaCegarLoop]: 2556 mSDtfsCounter, 6138 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 3602 mSolverCounterSat, 3730 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6506 SdHoareTripleChecker+Valid, 5417 SdHoareTripleChecker+Invalid, 7333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3730 IncrementalHoareTripleChecker+Valid, 3602 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:49,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6506 Valid, 5417 Invalid, 7333 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3730 Valid, 3602 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2022-11-18 19:50:49,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7596 states. [2022-11-18 19:50:49,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7596 to 5780. [2022-11-18 19:50:49,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5780 states, 3965 states have (on average 1.344514501891551) internal successors, (5331), 4048 states have internal predecessors, (5331), 1457 states have call successors, (1457), 354 states have call predecessors, (1457), 357 states have return successors, (1466), 1435 states have call predecessors, (1466), 1456 states have call successors, (1466) [2022-11-18 19:50:50,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5780 states to 5780 states and 8254 transitions. [2022-11-18 19:50:50,019 INFO L78 Accepts]: Start accepts. Automaton has 5780 states and 8254 transitions. Word has length 94 [2022-11-18 19:50:50,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:50,020 INFO L495 AbstractCegarLoop]: Abstraction has 5780 states and 8254 transitions. [2022-11-18 19:50:50,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-18 19:50:50,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5780 states and 8254 transitions. [2022-11-18 19:50:50,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-18 19:50:50,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:50,033 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:50,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:50:50,033 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:50,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:50,033 INFO L85 PathProgramCache]: Analyzing trace with hash 2003123870, now seen corresponding path program 1 times [2022-11-18 19:50:50,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:50,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975695268] [2022-11-18 19:50:50,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:50,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:50,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 19:50:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:50,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 19:50:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:50:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:50,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-18 19:50:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:50,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:50:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:50,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:50:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:50,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:50:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:50,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:50:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:50,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:50:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:50,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:50:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:50,624 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 19:50:50,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:50,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975695268] [2022-11-18 19:50:50,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975695268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:50,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:50,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:50:50,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941538356] [2022-11-18 19:50:50,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:50,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:50:50,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:50,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:50:50,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:50:50,626 INFO L87 Difference]: Start difference. First operand 5780 states and 8254 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-18 19:50:54,497 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 [] [2022-11-18 19:51:07,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:07,080 INFO L93 Difference]: Finished difference Result 13366 states and 19628 transitions. [2022-11-18 19:51:07,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:51:07,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2022-11-18 19:51:07,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:07,135 INFO L225 Difference]: With dead ends: 13366 [2022-11-18 19:51:07,136 INFO L226 Difference]: Without dead ends: 7592 [2022-11-18 19:51:07,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:51:07,165 INFO L413 NwaCegarLoop]: 2574 mSDtfsCounter, 6092 mSDsluCounter, 2890 mSDsCounter, 0 mSdLazyCounter, 3588 mSolverCounterSat, 3693 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6459 SdHoareTripleChecker+Valid, 5464 SdHoareTripleChecker+Invalid, 7282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3693 IncrementalHoareTripleChecker+Valid, 3588 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:07,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6459 Valid, 5464 Invalid, 7282 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3693 Valid, 3588 Invalid, 1 Unknown, 0 Unchecked, 15.6s Time] [2022-11-18 19:51:07,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7592 states. [2022-11-18 19:51:07,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7592 to 5776. [2022-11-18 19:51:07,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5776 states, 3963 states have (on average 1.3441836992177643) internal successors, (5327), 4046 states have internal predecessors, (5327), 1455 states have call successors, (1455), 354 states have call predecessors, (1455), 357 states have return successors, (1464), 1433 states have call predecessors, (1464), 1454 states have call successors, (1464) [2022-11-18 19:51:07,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5776 states to 5776 states and 8246 transitions. [2022-11-18 19:51:07,681 INFO L78 Accepts]: Start accepts. Automaton has 5776 states and 8246 transitions. Word has length 95 [2022-11-18 19:51:07,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:07,682 INFO L495 AbstractCegarLoop]: Abstraction has 5776 states and 8246 transitions. [2022-11-18 19:51:07,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-18 19:51:07,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5776 states and 8246 transitions. [2022-11-18 19:51:07,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 19:51:07,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:07,693 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:07,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:51:07,694 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:51:07,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:07,694 INFO L85 PathProgramCache]: Analyzing trace with hash 2097755253, now seen corresponding path program 1 times [2022-11-18 19:51:07,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:07,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140293683] [2022-11-18 19:51:07,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:07,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:08,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 19:51:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:08,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 19:51:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:51:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:08,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 19:51:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:08,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:51:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:08,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:51:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:08,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:51:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:51:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:08,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:51:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:51:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:08,237 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 19:51:08,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:08,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140293683] [2022-11-18 19:51:08,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140293683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:08,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:08,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:51:08,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705560506] [2022-11-18 19:51:08,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:08,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:51:08,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:08,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:51:08,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:51:08,240 INFO L87 Difference]: Start difference. First operand 5776 states and 8246 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-18 19:51:12,088 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 [] [2022-11-18 19:51:24,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:24,558 INFO L93 Difference]: Finished difference Result 13358 states and 19606 transitions. [2022-11-18 19:51:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:51:24,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 93 [2022-11-18 19:51:24,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:24,592 INFO L225 Difference]: With dead ends: 13358 [2022-11-18 19:51:24,592 INFO L226 Difference]: Without dead ends: 7588 [2022-11-18 19:51:24,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:51:24,610 INFO L413 NwaCegarLoop]: 2559 mSDtfsCounter, 6116 mSDsluCounter, 2884 mSDsCounter, 0 mSdLazyCounter, 3596 mSolverCounterSat, 3687 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6475 SdHoareTripleChecker+Valid, 5443 SdHoareTripleChecker+Invalid, 7284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3687 IncrementalHoareTripleChecker+Valid, 3596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:24,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6475 Valid, 5443 Invalid, 7284 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3687 Valid, 3596 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2022-11-18 19:51:24,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7588 states. [2022-11-18 19:51:25,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7588 to 5772. [2022-11-18 19:51:25,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5772 states, 3961 states have (on average 1.3438525624842212) internal successors, (5323), 4044 states have internal predecessors, (5323), 1453 states have call successors, (1453), 354 states have call predecessors, (1453), 357 states have return successors, (1462), 1431 states have call predecessors, (1462), 1452 states have call successors, (1462) [2022-11-18 19:51:25,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5772 states to 5772 states and 8238 transitions. [2022-11-18 19:51:25,072 INFO L78 Accepts]: Start accepts. Automaton has 5772 states and 8238 transitions. Word has length 93 [2022-11-18 19:51:25,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:25,074 INFO L495 AbstractCegarLoop]: Abstraction has 5772 states and 8238 transitions. [2022-11-18 19:51:25,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-18 19:51:25,074 INFO L276 IsEmpty]: Start isEmpty. Operand 5772 states and 8238 transitions. [2022-11-18 19:51:25,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-18 19:51:25,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:25,085 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:25,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:51:25,085 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:51:25,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:25,085 INFO L85 PathProgramCache]: Analyzing trace with hash -2066437397, now seen corresponding path program 1 times [2022-11-18 19:51:25,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:25,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627136820] [2022-11-18 19:51:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:25,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:25,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 19:51:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:25,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-18 19:51:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:25,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:51:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:25,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 19:51:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:25,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 19:51:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:25,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:51:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:25,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:51:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:25,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:51:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:25,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:51:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:25,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:51:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:25,651 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 19:51:25,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:25,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627136820] [2022-11-18 19:51:25,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627136820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:25,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:25,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:51:25,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689630006] [2022-11-18 19:51:25,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:25,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:51:25,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:25,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:51:25,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:51:25,654 INFO L87 Difference]: Start difference. First operand 5772 states and 8238 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-18 19:51:28,676 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 [] [2022-11-18 19:51:41,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:41,692 INFO L93 Difference]: Finished difference Result 13350 states and 19584 transitions. [2022-11-18 19:51:41,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:51:41,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92 [2022-11-18 19:51:41,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:41,731 INFO L225 Difference]: With dead ends: 13350 [2022-11-18 19:51:41,732 INFO L226 Difference]: Without dead ends: 7584 [2022-11-18 19:51:41,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:51:41,753 INFO L413 NwaCegarLoop]: 2576 mSDtfsCounter, 6057 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 3668 mSolverCounterSat, 3625 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6422 SdHoareTripleChecker+Valid, 5431 SdHoareTripleChecker+Invalid, 7294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3625 IncrementalHoareTripleChecker+Valid, 3668 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:41,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6422 Valid, 5431 Invalid, 7294 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3625 Valid, 3668 Invalid, 1 Unknown, 0 Unchecked, 15.2s Time] [2022-11-18 19:51:41,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7584 states. [2022-11-18 19:51:42,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7584 to 5768. [2022-11-18 19:51:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 3959 states have (on average 1.3435210911846427) internal successors, (5319), 4042 states have internal predecessors, (5319), 1451 states have call successors, (1451), 354 states have call predecessors, (1451), 357 states have return successors, (1460), 1429 states have call predecessors, (1460), 1450 states have call successors, (1460) [2022-11-18 19:51:42,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 8230 transitions. [2022-11-18 19:51:42,251 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 8230 transitions. Word has length 92 [2022-11-18 19:51:42,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:42,252 INFO L495 AbstractCegarLoop]: Abstraction has 5768 states and 8230 transitions. [2022-11-18 19:51:42,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-18 19:51:42,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 8230 transitions. [2022-11-18 19:51:42,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-18 19:51:42,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:42,263 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:42,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:51:42,263 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:51:42,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:42,264 INFO L85 PathProgramCache]: Analyzing trace with hash -538958476, now seen corresponding path program 1 times [2022-11-18 19:51:42,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:42,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588088575] [2022-11-18 19:51:42,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:42,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 19:51:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:51:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:51:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 19:51:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:51:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:51:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 19:51:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:51:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-18 19:51:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 19:51:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 19:51:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 19:51:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 19:51:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:42,841 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-18 19:51:42,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:42,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588088575] [2022-11-18 19:51:42,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588088575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:42,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:42,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:51:42,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051725264] [2022-11-18 19:51:42,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:42,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:51:42,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:42,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:51:42,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:51:42,844 INFO L87 Difference]: Start difference. First operand 5768 states and 8230 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 19:51:47,218 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 [] [2022-11-18 19:52:20,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:20,362 INFO L93 Difference]: Finished difference Result 20878 states and 31123 transitions. [2022-11-18 19:52:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:52:20,363 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2022-11-18 19:52:20,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:20,439 INFO L225 Difference]: With dead ends: 20878 [2022-11-18 19:52:20,439 INFO L226 Difference]: Without dead ends: 15116 [2022-11-18 19:52:20,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:52:20,462 INFO L413 NwaCegarLoop]: 2984 mSDtfsCounter, 9538 mSDsluCounter, 7699 mSDsCounter, 0 mSdLazyCounter, 12967 mSolverCounterSat, 7445 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10300 SdHoareTripleChecker+Valid, 10683 SdHoareTripleChecker+Invalid, 20413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7445 IncrementalHoareTripleChecker+Valid, 12967 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:20,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10300 Valid, 10683 Invalid, 20413 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7445 Valid, 12967 Invalid, 1 Unknown, 0 Unchecked, 35.6s Time] [2022-11-18 19:52:20,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15116 states. [2022-11-18 19:52:21,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15116 to 11396. [2022-11-18 19:52:21,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11396 states, 7818 states have (on average 1.3429265796878997) internal successors, (10499), 7983 states have internal predecessors, (10499), 2866 states have call successors, (2866), 704 states have call predecessors, (2866), 711 states have return successors, (2885), 2824 states have call predecessors, (2885), 2865 states have call successors, (2885) [2022-11-18 19:52:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11396 states to 11396 states and 16250 transitions. [2022-11-18 19:52:21,458 INFO L78 Accepts]: Start accepts. Automaton has 11396 states and 16250 transitions. Word has length 112 [2022-11-18 19:52:21,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:21,458 INFO L495 AbstractCegarLoop]: Abstraction has 11396 states and 16250 transitions. [2022-11-18 19:52:21,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 19:52:21,459 INFO L276 IsEmpty]: Start isEmpty. Operand 11396 states and 16250 transitions. [2022-11-18 19:52:21,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-18 19:52:21,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:21,471 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:21,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:52:21,471 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:52:21,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:21,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1384240767, now seen corresponding path program 1 times [2022-11-18 19:52:21,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:21,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107187517] [2022-11-18 19:52:21,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:21,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:52:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:52:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:52:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-18 19:52:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:52:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:52:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 19:52:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:52:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 19:52:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:52:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 19:52:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 19:52:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:52:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:52:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:52:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:52:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:52:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:21,971 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-18 19:52:21,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:52:21,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107187517] [2022-11-18 19:52:21,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107187517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:21,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:21,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:52:21,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087249761] [2022-11-18 19:52:21,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:21,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:52:21,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:52:21,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:52:21,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:52:21,975 INFO L87 Difference]: Start difference. First operand 11396 states and 16250 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 19:52:26,375 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 [] [2022-11-18 19:53:03,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:03,261 INFO L93 Difference]: Finished difference Result 44477 states and 67483 transitions. [2022-11-18 19:53:03,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:53:03,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2022-11-18 19:53:03,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:03,435 INFO L225 Difference]: With dead ends: 44477 [2022-11-18 19:53:03,436 INFO L226 Difference]: Without dead ends: 33087 [2022-11-18 19:53:03,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:53:03,489 INFO L413 NwaCegarLoop]: 3093 mSDtfsCounter, 11253 mSDsluCounter, 8464 mSDsCounter, 0 mSdLazyCounter, 14395 mSolverCounterSat, 8650 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12061 SdHoareTripleChecker+Valid, 11557 SdHoareTripleChecker+Invalid, 23046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8650 IncrementalHoareTripleChecker+Valid, 14395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:03,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12061 Valid, 11557 Invalid, 23046 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8650 Valid, 14395 Invalid, 1 Unknown, 0 Unchecked, 37.4s Time] [2022-11-18 19:53:03,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33087 states. [2022-11-18 19:53:05,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33087 to 22561. [2022-11-18 19:53:05,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22561 states, 15468 states have (on average 1.341673131626584) internal successors, (20753), 15799 states have internal predecessors, (20753), 5673 states have call successors, (5673), 1404 states have call predecessors, (5673), 1419 states have return successors, (5712), 5589 states have call predecessors, (5712), 5672 states have call successors, (5712) [2022-11-18 19:53:05,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22561 states to 22561 states and 32138 transitions. [2022-11-18 19:53:05,818 INFO L78 Accepts]: Start accepts. Automaton has 22561 states and 32138 transitions. Word has length 136 [2022-11-18 19:53:05,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:05,818 INFO L495 AbstractCegarLoop]: Abstraction has 22561 states and 32138 transitions. [2022-11-18 19:53:05,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 19:53:05,819 INFO L276 IsEmpty]: Start isEmpty. Operand 22561 states and 32138 transitions. [2022-11-18 19:53:05,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-18 19:53:05,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:05,828 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:05,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:53:05,829 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:05,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:05,832 INFO L85 PathProgramCache]: Analyzing trace with hash 365413751, now seen corresponding path program 1 times [2022-11-18 19:53:05,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:05,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829496645] [2022-11-18 19:53:05,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:05,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:53:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:53:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-18 19:53:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:53:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:53:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 19:53:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 19:53:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 19:53:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 19:53:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:53:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 19:53:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 19:53:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 19:53:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 19:53:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-18 19:53:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:06,559 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 19:53:06,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:06,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829496645] [2022-11-18 19:53:06,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829496645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:06,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:06,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:53:06,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181684811] [2022-11-18 19:53:06,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:06,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:53:06,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:06,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:53:06,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:53:06,562 INFO L87 Difference]: Start difference. First operand 22561 states and 32138 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-18 19:53:11,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:53:17,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:54:01,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:01,506 INFO L93 Difference]: Finished difference Result 87805 states and 132943 transitions. [2022-11-18 19:54:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:54:01,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2022-11-18 19:54:01,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:02,150 INFO L225 Difference]: With dead ends: 87805 [2022-11-18 19:54:02,150 INFO L226 Difference]: Without dead ends: 65250 [2022-11-18 19:54:02,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:54:02,263 INFO L413 NwaCegarLoop]: 3174 mSDtfsCounter, 10731 mSDsluCounter, 10229 mSDsCounter, 0 mSdLazyCounter, 17238 mSolverCounterSat, 8375 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11509 SdHoareTripleChecker+Valid, 13403 SdHoareTripleChecker+Invalid, 25614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8375 IncrementalHoareTripleChecker+Valid, 17238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:02,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11509 Valid, 13403 Invalid, 25614 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8375 Valid, 17238 Invalid, 1 Unknown, 0 Unchecked, 47.8s Time] [2022-11-18 19:54:02,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65250 states. [2022-11-18 19:54:05,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65250 to 44204. [2022-11-18 19:54:05,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44204 states, 30266 states have (on average 1.3375735148351284) internal successors, (40483), 30929 states have internal predecessors, (40483), 11110 states have call successors, (11110), 2796 states have call predecessors, (11110), 2827 states have return successors, (11189), 10942 states have call predecessors, (11189), 11109 states have call successors, (11189) [2022-11-18 19:54:05,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44204 states to 44204 states and 62782 transitions. [2022-11-18 19:54:05,933 INFO L78 Accepts]: Start accepts. Automaton has 44204 states and 62782 transitions. Word has length 151 [2022-11-18 19:54:05,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:05,933 INFO L495 AbstractCegarLoop]: Abstraction has 44204 states and 62782 transitions. [2022-11-18 19:54:05,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-18 19:54:05,934 INFO L276 IsEmpty]: Start isEmpty. Operand 44204 states and 62782 transitions. [2022-11-18 19:54:05,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-18 19:54:05,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:05,946 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:05,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:54:05,946 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:54:05,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:05,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1258696221, now seen corresponding path program 1 times [2022-11-18 19:54:05,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:05,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268933568] [2022-11-18 19:54:05,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:05,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:54:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:54:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:54:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:54:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 19:54:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:54:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 19:54:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 19:54:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 19:54:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 19:54:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-18 19:54:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:54:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-18 19:54:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 19:54:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 19:54:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 19:54:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-18 19:54:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:06,815 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-18 19:54:06,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:06,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268933568] [2022-11-18 19:54:06,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268933568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:06,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:06,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:54:06,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289885520] [2022-11-18 19:54:06,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:06,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:54:06,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:06,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:54:06,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:54:06,818 INFO L87 Difference]: Start difference. First operand 44204 states and 62782 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 19:54:10,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:55:04,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:55:04,499 INFO L93 Difference]: Finished difference Result 172594 states and 260597 transitions. [2022-11-18 19:55:04,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:55:04,500 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2022-11-18 19:55:04,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:55:05,527 INFO L225 Difference]: With dead ends: 172594 [2022-11-18 19:55:05,527 INFO L226 Difference]: Without dead ends: 128396 [2022-11-18 19:55:05,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:55:05,819 INFO L413 NwaCegarLoop]: 3718 mSDtfsCounter, 11136 mSDsluCounter, 10003 mSDsCounter, 0 mSdLazyCounter, 14978 mSolverCounterSat, 9446 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11909 SdHoareTripleChecker+Valid, 13721 SdHoareTripleChecker+Invalid, 24425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9446 IncrementalHoareTripleChecker+Valid, 14978 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:55:05,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11909 Valid, 13721 Invalid, 24425 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9446 Valid, 14978 Invalid, 1 Unknown, 0 Unchecked, 43.1s Time] [2022-11-18 19:55:05,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128396 states. [2022-11-18 19:55:13,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128396 to 86308. [2022-11-18 19:55:13,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86308 states, 59018 states have (on average 1.3326612220000678) internal successors, (78651), 60345 states have internal predecessors, (78651), 21654 states have call successors, (21654), 5572 states have call predecessors, (21654), 5635 states have return successors, (21813), 21318 states have call predecessors, (21813), 21653 states have call successors, (21813) [2022-11-18 19:55:14,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86308 states to 86308 states and 122118 transitions. [2022-11-18 19:55:14,235 INFO L78 Accepts]: Start accepts. Automaton has 86308 states and 122118 transitions. Word has length 164 [2022-11-18 19:55:14,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:55:14,236 INFO L495 AbstractCegarLoop]: Abstraction has 86308 states and 122118 transitions. [2022-11-18 19:55:14,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 19:55:14,236 INFO L276 IsEmpty]: Start isEmpty. Operand 86308 states and 122118 transitions. [2022-11-18 19:55:14,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-18 19:55:14,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:55:14,245 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:14,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:55:14,245 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:55:14,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:14,246 INFO L85 PathProgramCache]: Analyzing trace with hash 108975269, now seen corresponding path program 1 times [2022-11-18 19:55:14,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:14,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992575787] [2022-11-18 19:55:14,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:14,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 19:55:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:55:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 19:55:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:55:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 19:55:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:55:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:55:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 19:55:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 19:55:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 19:55:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:55:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:14,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 19:55:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 19:55:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 19:55:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 19:55:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 19:55:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:15,065 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 19:55:15,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:15,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992575787] [2022-11-18 19:55:15,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992575787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:15,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:15,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:55:15,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001073346] [2022-11-18 19:55:15,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:15,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:55:15,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:15,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:55:15,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:55:15,069 INFO L87 Difference]: Start difference. First operand 86308 states and 122118 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 19:55:18,956 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 [] [2022-11-18 19:55:23,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []