./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --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 d9b118296c3c6ba241fa831bfdb5289a0072e9871a56ce58ee16beb68bb5aa55 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:29:35,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:29:36,080 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 22:29:36,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:29:36,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:29:36,132 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:29:36,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:29:36,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:29:36,135 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:29:36,142 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:29:36,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:29:36,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:29:36,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:29:36,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:29:36,146 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:29:36,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:29:36,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:29:36,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:29:36,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:29:36,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:29:36,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:29:36,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:29:36,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:29:36,151 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:29:36,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:29:36,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:29:36,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:29:36,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:29:36,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:29:36,154 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:29:36,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:29:36,155 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:29:36,156 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:29:36,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:29:36,156 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:29:36,156 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:29:36,157 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:29:36,157 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:29:36,157 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:29:36,157 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9b118296c3c6ba241fa831bfdb5289a0072e9871a56ce58ee16beb68bb5aa55 [2023-11-23 22:29:36,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:29:36,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:29:36,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:29:36,513 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:29:36,514 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:29:36,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2023-11-23 22:29:39,704 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:29:40,203 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:29:40,204 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2023-11-23 22:29:40,254 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/data/339f3dce9/4cc690a762784beb9d754ee0025ddaf1/FLAG339db3d88 [2023-11-23 22:29:40,273 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/data/339f3dce9/4cc690a762784beb9d754ee0025ddaf1 [2023-11-23 22:29:40,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:29:40,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:29:40,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:29:40,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:29:40,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:29:40,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:29:40" (1/1) ... [2023-11-23 22:29:40,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f8a8a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:40, skipping insertion in model container [2023-11-23 22:29:40,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:29:40" (1/1) ... [2023-11-23 22:29:40,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:29:41,443 WARN L240 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_1e2fdf8f-a40d-4f9c-8c58-377498098500/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i[146121,146134] [2023-11-23 22:29:41,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:29:41,610 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:29:41,899 WARN L240 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_1e2fdf8f-a40d-4f9c-8c58-377498098500/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i[146121,146134] [2023-11-23 22:29:41,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:29:41,980 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:29:41,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41 WrapperNode [2023-11-23 22:29:41,981 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:29:41,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:29:41,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:29:41,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:29:41,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (1/1) ... [2023-11-23 22:29:42,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (1/1) ... [2023-11-23 22:29:42,177 INFO L138 Inliner]: procedures = 81, calls = 541, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 1873 [2023-11-23 22:29:42,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:29:42,179 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:29:42,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:29:42,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:29:42,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (1/1) ... [2023-11-23 22:29:42,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (1/1) ... [2023-11-23 22:29:42,217 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (1/1) ... [2023-11-23 22:29:42,310 INFO L189 HeapSplitter]: Split 355 memory accesses to 21 slices as follows [2, 7, 1, 1, 9, 9, 1, 8, 2, 8, 1, 8, 7, 47, 7, 2, 8, 7, 148, 5, 67] [2023-11-23 22:29:42,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (1/1) ... [2023-11-23 22:29:42,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (1/1) ... [2023-11-23 22:29:42,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (1/1) ... [2023-11-23 22:29:42,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (1/1) ... [2023-11-23 22:29:42,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (1/1) ... [2023-11-23 22:29:42,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (1/1) ... [2023-11-23 22:29:42,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:29:42,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:29:42,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:29:42,447 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:29:42,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (1/1) ... [2023-11-23 22:29:42,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:29:42,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:29:42,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:29:42,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e2fdf8f-a40d-4f9c-8c58-377498098500/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:29:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:29:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure ir_init [2023-11-23 22:29:42,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_init [2023-11-23 22:29:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 22:29:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 22:29:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 22:29:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 22:29:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 22:29:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 22:29:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 22:29:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 22:29:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 22:29:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-23 22:29:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-23 22:29:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-23 22:29:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-23 22:29:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-23 22:29:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-23 22:29:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-23 22:29:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-23 22:29:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-23 22:29:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-23 22:29:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2023-11-23 22:29:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2023-11-23 22:29:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure ir_exit [2023-11-23 22:29:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_exit [2023-11-23 22:29:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 22:29:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 22:29:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 22:29:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 22:29:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 22:29:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 22:29:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 22:29:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 22:29:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 22:29:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 22:29:42,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 22:29:42,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-23 22:29:42,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-23 22:29:42,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-23 22:29:42,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-23 22:29:42,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-23 22:29:42,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-23 22:29:42,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-23 22:29:42,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-23 22:29:42,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-23 22:29:42,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-23 22:29:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 22:29:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 22:29:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 22:29:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 22:29:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 22:29:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 22:29:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 22:29:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 22:29:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 22:29:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-23 22:29:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-23 22:29:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-23 22:29:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-23 22:29:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-23 22:29:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-23 22:29:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-23 22:29:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-23 22:29:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-23 22:29:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-23 22:29:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2023-11-23 22:29:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2023-11-23 22:29:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-23 22:29:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-23 22:29:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 22:29:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 22:29:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 22:29:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 22:29:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-23 22:29:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-23 22:29:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:29:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 22:29:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 22:29:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 22:29:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 22:29:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 22:29:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 22:29:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 22:29:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 22:29:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-23 22:29:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-23 22:29:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-23 22:29:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-23 22:29:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-23 22:29:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-23 22:29:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-23 22:29:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-23 22:29:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-23 22:29:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-23 22:29:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-23 22:29:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2023-11-23 22:29:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2023-11-23 22:29:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 22:29:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 22:29:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 22:29:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 22:29:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 22:29:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 22:29:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 22:29:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 22:29:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 22:29:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 22:29:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 22:29:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 22:29:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 22:29:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 22:29:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 22:29:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 22:29:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 22:29:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-23 22:29:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-23 22:29:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-23 22:29:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-23 22:29:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-23 22:29:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-23 22:29:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-23 22:29:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-23 22:29:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-23 22:29:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-23 22:29:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2023-11-23 22:29:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2023-11-23 22:29:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2023-11-23 22:29:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2023-11-23 22:29:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 22:29:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 22:29:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure ir_xbof_change [2023-11-23 22:29:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_xbof_change [2023-11-23 22:29:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2023-11-23 22:29:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2023-11-23 22:29:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2023-11-23 22:29:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2023-11-23 22:29:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:29:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 22:29:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 22:29:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 22:29:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 22:29:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 22:29:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 22:29:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 22:29:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 22:29:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 22:29:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 22:29:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-23 22:29:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-23 22:29:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-23 22:29:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-23 22:29:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-23 22:29:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-23 22:29:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-23 22:29:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-23 22:29:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-23 22:29:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-23 22:29:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:29:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:29:42,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:29:43,017 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:29:43,019 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:29:43,157 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2023-11-23 22:29:43,158 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 22:29:43,201 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2023-11-23 22:29:43,201 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2023-11-23 22:29:43,247 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 22:29:43,251 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 22:29:43,272 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 22:29:44,728 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##324: assume false; [2023-11-23 22:29:44,728 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume !false; [2023-11-23 22:29:44,729 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##73: assume false; [2023-11-23 22:29:44,729 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2023-11-23 22:29:44,729 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2023-11-23 22:29:44,730 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##325: assume !false; [2023-11-23 22:29:44,754 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:29:45,021 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:29:45,021 INFO L309 CfgBuilder]: Removed 23 assume(true) statements. [2023-11-23 22:29:45,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:29:45 BoogieIcfgContainer [2023-11-23 22:29:45,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:29:45,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:29:45,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:29:45,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:29:45,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:29:40" (1/3) ... [2023-11-23 22:29:45,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f206d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:29:45, skipping insertion in model container [2023-11-23 22:29:45,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:41" (2/3) ... [2023-11-23 22:29:45,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f206d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:29:45, skipping insertion in model container [2023-11-23 22:29:45,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:29:45" (3/3) ... [2023-11-23 22:29:45,037 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2023-11-23 22:29:45,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:29:45,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:29:45,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:29:45,152 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=LoopHeads, 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;@c1e49a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:29:45,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:29:45,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 289 states, 227 states have (on average 1.7004405286343611) internal successors, (386), 237 states have internal predecessors, (386), 46 states have call successors, (46), 15 states have call predecessors, (46), 14 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-23 22:29:45,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 22:29:45,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:29:45,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:29:45,171 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:29:45,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:45,177 INFO L85 PathProgramCache]: Analyzing trace with hash 326020596, now seen corresponding path program 1 times [2023-11-23 22:29:45,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:29:45,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114896673] [2023-11-23 22:29:45,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:45,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:29:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:29:49,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:29:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:29:49,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:29:49,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:29:49,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114896673] [2023-11-23 22:29:49,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114896673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:29:49,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:29:49,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:29:49,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224301033] [2023-11-23 22:29:49,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:29:49,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:29:49,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:29:49,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:29:49,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:29:49,918 INFO L87 Difference]: Start difference. First operand has 289 states, 227 states have (on average 1.7004405286343611) internal successors, (386), 237 states have internal predecessors, (386), 46 states have call successors, (46), 15 states have call predecessors, (46), 14 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:29:53,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:29:53,580 INFO L93 Difference]: Finished difference Result 572 states and 950 transitions. [2023-11-23 22:29:53,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:29:53,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-23 22:29:53,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:29:53,597 INFO L225 Difference]: With dead ends: 572 [2023-11-23 22:29:53,598 INFO L226 Difference]: Without dead ends: 283 [2023-11-23 22:29:53,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:29:53,607 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 436 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:29:53,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 875 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 22:29:53,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-23 22:29:53,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2023-11-23 22:29:53,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 224 states have (on average 1.4732142857142858) internal successors, (330), 231 states have internal predecessors, (330), 45 states have call successors, (45), 14 states have call predecessors, (45), 13 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-23 22:29:53,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 417 transitions. [2023-11-23 22:29:53,697 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 417 transitions. Word has length 15 [2023-11-23 22:29:53,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:29:53,697 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 417 transitions. [2023-11-23 22:29:53,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:29:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 417 transitions. [2023-11-23 22:29:53,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 22:29:53,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:29:53,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:29:53,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:29:53,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:29:53,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:53,701 INFO L85 PathProgramCache]: Analyzing trace with hash 584186034, now seen corresponding path program 1 times [2023-11-23 22:29:53,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:29:53,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211460587] [2023-11-23 22:29:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:53,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:29:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:29:56,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:29:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:29:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:29:56,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:29:56,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211460587] [2023-11-23 22:29:56,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211460587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:29:56,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:29:56,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:29:56,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222751703] [2023-11-23 22:29:56,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:29:56,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:29:56,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:29:56,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:29:56,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:29:56,735 INFO L87 Difference]: Start difference. First operand 283 states and 417 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:29:59,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:29:59,968 INFO L93 Difference]: Finished difference Result 815 states and 1209 transitions. [2023-11-23 22:29:59,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:29:59,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-23 22:29:59,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:29:59,976 INFO L225 Difference]: With dead ends: 815 [2023-11-23 22:29:59,976 INFO L226 Difference]: Without dead ends: 547 [2023-11-23 22:29:59,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:29:59,979 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 469 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:29:59,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 755 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-23 22:29:59,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-11-23 22:30:00,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 544. [2023-11-23 22:30:00,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 434 states have (on average 1.476958525345622) internal successors, (641), 444 states have internal predecessors, (641), 84 states have call successors, (84), 26 states have call predecessors, (84), 25 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-23 22:30:00,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 806 transitions. [2023-11-23 22:30:00,063 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 806 transitions. Word has length 15 [2023-11-23 22:30:00,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:00,064 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 806 transitions. [2023-11-23 22:30:00,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:30:00,064 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 806 transitions. [2023-11-23 22:30:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 22:30:00,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:00,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:00,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:30:00,066 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:30:00,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:00,066 INFO L85 PathProgramCache]: Analyzing trace with hash 929781691, now seen corresponding path program 1 times [2023-11-23 22:30:00,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:00,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198032576] [2023-11-23 22:30:00,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:00,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:30:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:02,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:02,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:02,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198032576] [2023-11-23 22:30:02,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198032576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:02,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:02,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:30:02,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613904362] [2023-11-23 22:30:02,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:02,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:30:02,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:02,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:30:02,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:30:02,805 INFO L87 Difference]: Start difference. First operand 544 states and 806 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:30:05,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:05,105 INFO L93 Difference]: Finished difference Result 546 states and 807 transitions. [2023-11-23 22:30:05,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:30:05,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-11-23 22:30:05,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:05,115 INFO L225 Difference]: With dead ends: 546 [2023-11-23 22:30:05,116 INFO L226 Difference]: Without dead ends: 535 [2023-11-23 22:30:05,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:30:05,123 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 424 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:05,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 472 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 22:30:05,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-11-23 22:30:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2023-11-23 22:30:05,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 429 states have (on average 1.4731934731934733) internal successors, (632), 437 states have internal predecessors, (632), 81 states have call successors, (81), 25 states have call predecessors, (81), 24 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-23 22:30:05,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 792 transitions. [2023-11-23 22:30:05,221 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 792 transitions. Word has length 16 [2023-11-23 22:30:05,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:05,221 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 792 transitions. [2023-11-23 22:30:05,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:30:05,221 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 792 transitions. [2023-11-23 22:30:05,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 22:30:05,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:05,227 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:05,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:30:05,228 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:30:05,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:05,228 INFO L85 PathProgramCache]: Analyzing trace with hash -137391702, now seen corresponding path program 1 times [2023-11-23 22:30:05,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:05,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59885582] [2023-11-23 22:30:05,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:05,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:08,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:30:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 22:30:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 22:30:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:08,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-23 22:30:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:08,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 22:30:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:08,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:30:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:08,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 22:30:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:08,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:30:08,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:08,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59885582] [2023-11-23 22:30:08,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59885582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:08,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:08,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:30:08,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786428367] [2023-11-23 22:30:08,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:08,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:30:08,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:08,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:30:08,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:30:08,248 INFO L87 Difference]: Start difference. First operand 535 states and 792 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 22:30:12,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:12,214 INFO L93 Difference]: Finished difference Result 1416 states and 2142 transitions. [2023-11-23 22:30:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:30:12,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2023-11-23 22:30:12,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:12,226 INFO L225 Difference]: With dead ends: 1416 [2023-11-23 22:30:12,226 INFO L226 Difference]: Without dead ends: 898 [2023-11-23 22:30:12,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:30:12,237 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 370 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:12,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 1988 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-23 22:30:12,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2023-11-23 22:30:12,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 514. [2023-11-23 22:30:12,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 416 states have (on average 1.4735576923076923) internal successors, (613), 421 states have internal predecessors, (613), 74 states have call successors, (74), 24 states have call predecessors, (74), 23 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-23 22:30:12,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 759 transitions. [2023-11-23 22:30:12,330 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 759 transitions. Word has length 65 [2023-11-23 22:30:12,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:12,331 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 759 transitions. [2023-11-23 22:30:12,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 22:30:12,331 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 759 transitions. [2023-11-23 22:30:12,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 22:30:12,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:12,339 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 22:30:12,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:30:12,339 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:30:12,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:12,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1739566961, now seen corresponding path program 1 times [2023-11-23 22:30:12,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:12,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225046281] [2023-11-23 22:30:12,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:12,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:15,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:30:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:15,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 22:30:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:15,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 22:30:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:15,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-23 22:30:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:16,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 22:30:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:16,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 22:30:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:30:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:16,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:16,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225046281] [2023-11-23 22:30:16,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225046281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:16,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:16,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 22:30:16,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198487523] [2023-11-23 22:30:16,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:16,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:30:16,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:16,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:30:16,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:30:16,062 INFO L87 Difference]: Start difference. First operand 514 states and 759 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 22:30:21,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:21,378 INFO L93 Difference]: Finished difference Result 798 states and 1178 transitions. [2023-11-23 22:30:21,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:30:21,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2023-11-23 22:30:21,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:21,383 INFO L225 Difference]: With dead ends: 798 [2023-11-23 22:30:21,384 INFO L226 Difference]: Without dead ends: 530 [2023-11-23 22:30:21,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-23 22:30:21,386 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 126 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:21,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1896 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-23 22:30:21,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2023-11-23 22:30:21,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 526. [2023-11-23 22:30:21,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 424 states have (on average 1.4646226415094339) internal successors, (621), 429 states have internal predecessors, (621), 74 states have call successors, (74), 24 states have call predecessors, (74), 27 states have return successors, (80), 75 states have call predecessors, (80), 72 states have call successors, (80) [2023-11-23 22:30:21,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 775 transitions. [2023-11-23 22:30:21,441 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 775 transitions. Word has length 61 [2023-11-23 22:30:21,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:21,441 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 775 transitions. [2023-11-23 22:30:21,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 22:30:21,442 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 775 transitions. [2023-11-23 22:30:21,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 22:30:21,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:21,444 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 22:30:21,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:30:21,445 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:30:21,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:21,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1994303506, now seen corresponding path program 1 times [2023-11-23 22:30:21,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:21,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891141258] [2023-11-23 22:30:21,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:21,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:23,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:30:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 22:30:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:23,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 22:30:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:24,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-23 22:30:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 22:30:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:24,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 22:30:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:24,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:30:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:24,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:24,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891141258] [2023-11-23 22:30:24,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891141258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:24,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:24,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 22:30:24,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921459165] [2023-11-23 22:30:24,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:24,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 22:30:24,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:24,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 22:30:24,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:30:24,054 INFO L87 Difference]: Start difference. First operand 526 states and 775 transitions. Second operand has 11 states, 10 states have (on average 4.6) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7)