./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 0e0057cc 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_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/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_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI --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 0.2.4-dev-0e0057c [2023-11-24 21:39:54,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:39:54,650 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-24 21:39:54,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:39:54,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:39:54,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:39:54,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:39:54,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:39:54,708 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:39:54,714 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:39:54,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:39:54,715 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:39:54,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:39:54,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:39:54,719 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:39:54,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:39:54,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:39:54,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:39:54,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:39:54,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:39:54,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:39:54,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:39:54,723 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:39:54,723 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:39:54,724 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:39:54,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:39:54,725 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:39:54,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:39:54,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:39:54,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:39:54,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:39:54,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 21:39:54,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:39:54,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:39:54,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:39:54,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:39:54,730 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 21:39:54,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:39:54,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:39:54,731 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_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9b118296c3c6ba241fa831bfdb5289a0072e9871a56ce58ee16beb68bb5aa55 [2023-11-24 21:39:55,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:39:55,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:39:55,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:39:55,068 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:39:55,068 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:39:55,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2023-11-24 21:39:58,227 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:39:58,801 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:39:58,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2023-11-24 21:39:58,838 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/data/80d58b202/eeb97aa044e1482ea3e22f16b9c60079/FLAG0d3920a07 [2023-11-24 21:39:58,854 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/data/80d58b202/eeb97aa044e1482ea3e22f16b9c60079 [2023-11-24 21:39:58,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:39:58,859 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:39:58,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:39:58,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:39:58,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:39:58,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:39:58" (1/1) ... [2023-11-24 21:39:58,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341515b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:58, skipping insertion in model container [2023-11-24 21:39:58,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:39:58" (1/1) ... [2023-11-24 21:39:58,964 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:40:00,070 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_46175590-9430-4700-ad5e-309af03b87e3/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i[146121,146134] [2023-11-24 21:40:00,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:40:00,267 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:40:00,541 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_46175590-9430-4700-ad5e-309af03b87e3/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i[146121,146134] [2023-11-24 21:40:00,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:40:00,630 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:40:00,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00 WrapperNode [2023-11-24 21:40:00,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:40:00,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:40:00,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:40:00,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:40:00,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (1/1) ... [2023-11-24 21:40:00,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (1/1) ... [2023-11-24 21:40:00,818 INFO L138 Inliner]: procedures = 81, calls = 541, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 1915 [2023-11-24 21:40:00,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:40:00,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:40:00,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:40:00,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:40:00,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (1/1) ... [2023-11-24 21:40:00,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (1/1) ... [2023-11-24 21:40:00,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (1/1) ... [2023-11-24 21:40:01,001 INFO L175 MemorySlicer]: Split 355 memory accesses to 21 slices as follows [2, 7, 2, 5, 1, 1, 9, 9, 8, 2, 8, 8, 47, 1, 7, 7, 1, 67, 7, 8, 148]. 42 percent of accesses are in the largest equivalence class. The 275 initializations are split as follows [2, 7, 0, 0, 1, 1, 9, 9, 8, 0, 8, 8, 26, 0, 7, 7, 0, 65, 7, 8, 102]. The 12 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 9]. [2023-11-24 21:40:01,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (1/1) ... [2023-11-24 21:40:01,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (1/1) ... [2023-11-24 21:40:01,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (1/1) ... [2023-11-24 21:40:01,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (1/1) ... [2023-11-24 21:40:01,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (1/1) ... [2023-11-24 21:40:01,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (1/1) ... [2023-11-24 21:40:01,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:40:01,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:40:01,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:40:01,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:40:01,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (1/1) ... [2023-11-24 21:40:01,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:40:01,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:40:01,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:40:01,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46175590-9430-4700-ad5e-309af03b87e3/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:40:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:40:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure ir_init [2023-11-24 21:40:01,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_init [2023-11-24 21:40:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:40:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:40:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:40:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:40:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-24 21:40:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-24 21:40:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-24 21:40:01,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-24 21:40:01,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-24 21:40:01,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-24 21:40:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-24 21:40:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-24 21:40:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-24 21:40:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-24 21:40:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-24 21:40:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-24 21:40:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-24 21:40:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-24 21:40:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-24 21:40:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2023-11-24 21:40:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2023-11-24 21:40:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure ir_exit [2023-11-24 21:40:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_exit [2023-11-24 21:40:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-24 21:40:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-24 21:40:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-24 21:40:01,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-24 21:40:01,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-24 21:40:01,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-24 21:40:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-24 21:40:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-24 21:40:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-24 21:40:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-24 21:40:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-24 21:40:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-24 21:40:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-24 21:40:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-24 21:40:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-24 21:40:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-24 21:40:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-24 21:40:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-24 21:40:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-24 21:40:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-24 21:40:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-24 21:40:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:40:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:40:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:40:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:40:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-24 21:40:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-24 21:40:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-24 21:40:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-24 21:40:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-24 21:40:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-24 21:40:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-24 21:40:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-24 21:40:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-24 21:40:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-24 21:40:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-24 21:40:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-24 21:40:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-24 21:40:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-24 21:40:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-24 21:40:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2023-11-24 21:40:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2023-11-24 21:40:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-24 21:40:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-24 21:40:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-24 21:40:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-24 21:40:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 21:40:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 21:40:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-24 21:40:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-24 21:40:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:40:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-24 21:40:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-24 21:40:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-24 21:40:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-24 21:40:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-24 21:40:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-24 21:40:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-24 21:40:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-24 21:40:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-24 21:40:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-24 21:40:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-24 21:40:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-24 21:40:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-24 21:40:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-24 21:40:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-24 21:40:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-24 21:40:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-24 21:40:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-24 21:40:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-24 21:40:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2023-11-24 21:40:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2023-11-24 21:40:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 21:40:01,281 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 21:40:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 21:40:01,282 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 21:40:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-24 21:40:01,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-24 21:40:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-24 21:40:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-24 21:40:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-24 21:40:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-24 21:40:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-24 21:40:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-24 21:40:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-24 21:40:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-24 21:40:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-24 21:40:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-24 21:40:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-24 21:40:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-24 21:40:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-24 21:40:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-24 21:40:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-24 21:40:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-24 21:40:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-24 21:40:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-24 21:40:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-24 21:40:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-24 21:40:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-24 21:40:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2023-11-24 21:40:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2023-11-24 21:40:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2023-11-24 21:40:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2023-11-24 21:40:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-24 21:40:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-24 21:40:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure ir_xbof_change [2023-11-24 21:40:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_xbof_change [2023-11-24 21:40:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2023-11-24 21:40:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2023-11-24 21:40:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2023-11-24 21:40:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2023-11-24 21:40:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 21:40:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-24 21:40:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-24 21:40:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-24 21:40:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-24 21:40:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-24 21:40:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-24 21:40:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-24 21:40:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-24 21:40:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-24 21:40:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-24 21:40:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-24 21:40:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-24 21:40:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-24 21:40:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-24 21:40:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-24 21:40:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-24 21:40:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-24 21:40:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-24 21:40:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-24 21:40:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-24 21:40:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:40:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:40:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:40:01,806 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:40:01,809 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:40:02,026 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2023-11-24 21:40:02,028 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:40:02,109 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2023-11-24 21:40:02,109 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2023-11-24 21:40:02,180 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:40:02,185 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:40:02,222 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:40:03,603 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##324: assume false; [2023-11-24 21:40:03,603 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume !false; [2023-11-24 21:40:03,603 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##73: assume false; [2023-11-24 21:40:03,603 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2023-11-24 21:40:03,603 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2023-11-24 21:40:03,603 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##325: assume !false; [2023-11-24 21:40:03,615 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:40:03,829 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:40:03,830 INFO L309 CfgBuilder]: Removed 23 assume(true) statements. [2023-11-24 21:40:03,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:40:03 BoogieIcfgContainer [2023-11-24 21:40:03,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:40:03,834 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:40:03,834 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:40:03,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:40:03,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:39:58" (1/3) ... [2023-11-24 21:40:03,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696f7ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:40:03, skipping insertion in model container [2023-11-24 21:40:03,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:40:00" (2/3) ... [2023-11-24 21:40:03,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696f7ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:40:03, skipping insertion in model container [2023-11-24 21:40:03,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:40:03" (3/3) ... [2023-11-24 21:40:03,840 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2023-11-24 21:40:03,861 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:40:03,861 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 21:40:03,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:40:03,931 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;@6aeabd02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:40:03,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 21:40:03,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 291 states, 229 states have (on average 1.6943231441048034) internal successors, (388), 239 states have internal predecessors, (388), 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) [2023-11-24 21:40:03,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 21:40:03,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:40:03,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:40:03,951 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:40:03,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:40:03,957 INFO L85 PathProgramCache]: Analyzing trace with hash 511173174, now seen corresponding path program 1 times [2023-11-24 21:40:03,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:40:03,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337458099] [2023-11-24 21:40:03,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:40:03,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:40:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:07,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:07,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:40:07,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:40:07,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337458099] [2023-11-24 21:40:07,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337458099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:40:07,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:40:07,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 21:40:07,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526984305] [2023-11-24 21:40:07,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:40:07,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:40:07,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:40:07,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:40:07,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:40:07,578 INFO L87 Difference]: Start difference. First operand has 291 states, 229 states have (on average 1.6943231441048034) internal successors, (388), 239 states have internal predecessors, (388), 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) [2023-11-24 21:40:09,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:40:09,118 INFO L93 Difference]: Finished difference Result 576 states and 954 transitions. [2023-11-24 21:40:09,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:40:09,121 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 [2023-11-24 21:40:09,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:40:09,135 INFO L225 Difference]: With dead ends: 576 [2023-11-24 21:40:09,135 INFO L226 Difference]: Without dead ends: 285 [2023-11-24 21:40:09,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:40:09,144 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 438 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:40:09,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 956 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 21:40:09,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-24 21:40:09,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2023-11-24 21:40:09,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 226 states have (on average 1.4690265486725664) internal successors, (332), 233 states have internal predecessors, (332), 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) [2023-11-24 21:40:09,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 419 transitions. [2023-11-24 21:40:09,218 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 419 transitions. Word has length 15 [2023-11-24 21:40:09,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:40:09,219 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 419 transitions. [2023-11-24 21:40:09,219 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) [2023-11-24 21:40:09,219 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 419 transitions. [2023-11-24 21:40:09,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 21:40:09,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:40:09,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:40:09,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 21:40:09,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:40:09,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:40:09,222 INFO L85 PathProgramCache]: Analyzing trace with hash 769338612, now seen corresponding path program 1 times [2023-11-24 21:40:09,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:40:09,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770233853] [2023-11-24 21:40:09,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:40:09,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:40:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:11,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:11,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:40:11,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:40:11,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770233853] [2023-11-24 21:40:11,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770233853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:40:11,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:40:11,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:40:11,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583763670] [2023-11-24 21:40:11,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:40:11,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:40:11,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:40:11,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:40:11,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:40:11,603 INFO L87 Difference]: Start difference. First operand 285 states and 419 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) [2023-11-24 21:40:13,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:40:13,065 INFO L93 Difference]: Finished difference Result 821 states and 1215 transitions. [2023-11-24 21:40:13,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:40:13,066 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 [2023-11-24 21:40:13,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:40:13,074 INFO L225 Difference]: With dead ends: 821 [2023-11-24 21:40:13,074 INFO L226 Difference]: Without dead ends: 551 [2023-11-24 21:40:13,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:40:13,078 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 471 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:40:13,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 801 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 21:40:13,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-11-24 21:40:13,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 548. [2023-11-24 21:40:13,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 438 states have (on average 1.4726027397260273) internal successors, (645), 448 states have internal predecessors, (645), 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) [2023-11-24 21:40:13,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 810 transitions. [2023-11-24 21:40:13,163 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 810 transitions. Word has length 15 [2023-11-24 21:40:13,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:40:13,163 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 810 transitions. [2023-11-24 21:40:13,163 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) [2023-11-24 21:40:13,163 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 810 transitions. [2023-11-24 21:40:13,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 21:40:13,164 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:40:13,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:40:13,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 21:40:13,165 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:40:13,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:40:13,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1920422921, now seen corresponding path program 1 times [2023-11-24 21:40:13,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:40:13,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338437879] [2023-11-24 21:40:13,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:40:13,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:40:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:15,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:40:15,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:40:15,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338437879] [2023-11-24 21:40:15,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338437879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:40:15,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:40:15,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:40:15,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507319683] [2023-11-24 21:40:15,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:40:15,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:40:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:40:15,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:40:15,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:40:15,554 INFO L87 Difference]: Start difference. First operand 548 states and 810 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) [2023-11-24 21:40:16,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:40:16,317 INFO L93 Difference]: Finished difference Result 550 states and 811 transitions. [2023-11-24 21:40:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:40:16,318 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 [2023-11-24 21:40:16,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:40:16,323 INFO L225 Difference]: With dead ends: 550 [2023-11-24 21:40:16,323 INFO L226 Difference]: Without dead ends: 539 [2023-11-24 21:40:16,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:40:16,324 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 426 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:40:16,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 515 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-24 21:40:16,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2023-11-24 21:40:16,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2023-11-24 21:40:16,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 433 states have (on average 1.4688221709006928) internal successors, (636), 441 states have internal predecessors, (636), 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) [2023-11-24 21:40:16,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 796 transitions. [2023-11-24 21:40:16,366 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 796 transitions. Word has length 16 [2023-11-24 21:40:16,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:40:16,366 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 796 transitions. [2023-11-24 21:40:16,366 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) [2023-11-24 21:40:16,366 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 796 transitions. [2023-11-24 21:40:16,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-24 21:40:16,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:40:16,373 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] [2023-11-24 21:40:16,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 21:40:16,373 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:40:16,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:40:16,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1153890672, now seen corresponding path program 1 times [2023-11-24 21:40:16,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:40:16,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901209095] [2023-11-24 21:40:16,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:40:16,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:40:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:18,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:18,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-24 21:40:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-24 21:40:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-24 21:40:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:18,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-24 21:40:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:18,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:18,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-24 21:40:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:18,826 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 21:40:18,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:40:18,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901209095] [2023-11-24 21:40:18,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901209095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:40:18,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:40:18,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 21:40:18,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61962138] [2023-11-24 21:40:18,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:40:18,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:40:18,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:40:18,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:40:18,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:40:18,830 INFO L87 Difference]: Start difference. First operand 539 states and 796 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) [2023-11-24 21:40:20,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:40:20,731 INFO L93 Difference]: Finished difference Result 1428 states and 2154 transitions. [2023-11-24 21:40:20,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 21:40:20,732 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 [2023-11-24 21:40:20,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:40:20,740 INFO L225 Difference]: With dead ends: 1428 [2023-11-24 21:40:20,740 INFO L226 Difference]: Without dead ends: 906 [2023-11-24 21:40:20,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:40:20,743 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 372 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:40:20,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 2080 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-24 21:40:20,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2023-11-24 21:40:20,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 518. [2023-11-24 21:40:20,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 420 states have (on average 1.4690476190476192) internal successors, (617), 425 states have internal predecessors, (617), 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) [2023-11-24 21:40:20,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 763 transitions. [2023-11-24 21:40:20,800 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 763 transitions. Word has length 65 [2023-11-24 21:40:20,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:40:20,800 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 763 transitions. [2023-11-24 21:40:20,801 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) [2023-11-24 21:40:20,801 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 763 transitions. [2023-11-24 21:40:20,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-24 21:40:20,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:40:20,813 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] [2023-11-24 21:40:20,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 21:40:20,813 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:40:20,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:40:20,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2084372887, now seen corresponding path program 1 times [2023-11-24 21:40:20,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:40:20,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86495395] [2023-11-24 21:40:20,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:40:20,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:40:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:23,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:23,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-24 21:40:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:23,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-24 21:40:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:23,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-24 21:40:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:23,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-24 21:40:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-24 21:40:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:23,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:23,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:40:23,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:40:23,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86495395] [2023-11-24 21:40:23,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86495395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:40:23,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:40:23,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-24 21:40:23,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452057599] [2023-11-24 21:40:23,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:40:23,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-24 21:40:23,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:40:23,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-24 21:40:23,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-24 21:40:23,793 INFO L87 Difference]: Start difference. First operand 518 states and 763 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) [2023-11-24 21:40:26,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:40:26,425 INFO L93 Difference]: Finished difference Result 804 states and 1184 transitions. [2023-11-24 21:40:26,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 21:40:26,425 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 [2023-11-24 21:40:26,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:40:26,430 INFO L225 Difference]: With dead ends: 804 [2023-11-24 21:40:26,430 INFO L226 Difference]: Without dead ends: 534 [2023-11-24 21:40:26,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-24 21:40:26,434 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 126 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:40:26,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1950 Invalid, 1251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-24 21:40:26,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-11-24 21:40:26,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 530. [2023-11-24 21:40:26,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 428 states have (on average 1.4602803738317758) internal successors, (625), 433 states have internal predecessors, (625), 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) [2023-11-24 21:40:26,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 779 transitions. [2023-11-24 21:40:26,485 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 779 transitions. Word has length 61 [2023-11-24 21:40:26,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:40:26,488 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 779 transitions. [2023-11-24 21:40:26,488 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) [2023-11-24 21:40:26,489 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 779 transitions. [2023-11-24 21:40:26,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-24 21:40:26,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:40:26,491 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] [2023-11-24 21:40:26,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 21:40:26,492 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:40:26,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:40:26,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1829636342, now seen corresponding path program 1 times [2023-11-24 21:40:26,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:40:26,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715067443] [2023-11-24 21:40:26,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:40:26,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:40:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:29,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:29,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-24 21:40:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:29,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-24 21:40:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:29,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-24 21:40:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:29,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-24 21:40:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:29,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-24 21:40:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:29,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:40:29,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:40:29,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715067443] [2023-11-24 21:40:29,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715067443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:40:29,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:40:29,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-24 21:40:29,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703673201] [2023-11-24 21:40:29,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:40:29,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 21:40:29,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:40:29,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 21:40:29,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-24 21:40:29,384 INFO L87 Difference]: Start difference. First operand 530 states and 779 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) [2023-11-24 21:40:32,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:40:32,754 INFO L93 Difference]: Finished difference Result 999 states and 1490 transitions. [2023-11-24 21:40:32,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 21:40:32,755 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 61 [2023-11-24 21:40:32,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:40:32,762 INFO L225 Difference]: With dead ends: 999 [2023-11-24 21:40:32,762 INFO L226 Difference]: Without dead ends: 723 [2023-11-24 21:40:32,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2023-11-24 21:40:32,768 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 398 mSDsluCounter, 3787 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 4309 SdHoareTripleChecker+Invalid, 2285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:40:32,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 4309 Invalid, 2285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-24 21:40:32,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2023-11-24 21:40:32,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 530. [2023-11-24 21:40:32,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 428 states have (on average 1.4579439252336448) internal successors, (624), 433 states have internal predecessors, (624), 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) [2023-11-24 21:40:32,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 778 transitions. [2023-11-24 21:40:32,823 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 778 transitions. Word has length 61 [2023-11-24 21:40:32,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:40:32,823 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 778 transitions. [2023-11-24 21:40:32,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-11-24 21:40:32,824 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 778 transitions. [2023-11-24 21:40:32,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-24 21:40:32,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:40:32,827 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-24 21:40:32,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 21:40:32,827 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:40:32,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:40:32,828 INFO L85 PathProgramCache]: Analyzing trace with hash -794173555, now seen corresponding path program 1 times [2023-11-24 21:40:32,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:40:32,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863947993] [2023-11-24 21:40:32,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:40:32,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:40:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:35,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:35,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-24 21:40:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:35,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-24 21:40:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:35,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-24 21:40:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:35,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-24 21:40:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:35,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:35,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-24 21:40:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:35,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 21:40:35,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:40:35,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863947993] [2023-11-24 21:40:35,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863947993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:40:35,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:40:35,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 21:40:35,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804898407] [2023-11-24 21:40:35,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:40:35,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:40:35,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:40:35,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:40:35,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:40:35,270 INFO L87 Difference]: Start difference. First operand 530 states and 778 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 5 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-24 21:40:37,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:40:37,483 INFO L93 Difference]: Finished difference Result 813 states and 1193 transitions. [2023-11-24 21:40:37,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-24 21:40:37,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 5 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2023-11-24 21:40:37,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:40:37,492 INFO L225 Difference]: With dead ends: 813 [2023-11-24 21:40:37,492 INFO L226 Difference]: Without dead ends: 810 [2023-11-24 21:40:37,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-24 21:40:37,494 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 961 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:40:37,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 1921 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-24 21:40:37,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2023-11-24 21:40:37,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 792. [2023-11-24 21:40:37,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 641 states have (on average 1.4617784711388455) internal successors, (937), 649 states have internal predecessors, (937), 111 states have call successors, (111), 34 states have call predecessors, (111), 39 states have return successors, (123), 113 states have call predecessors, (123), 109 states have call successors, (123) [2023-11-24 21:40:37,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1171 transitions. [2023-11-24 21:40:37,570 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1171 transitions. Word has length 65 [2023-11-24 21:40:37,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:40:37,573 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 1171 transitions. [2023-11-24 21:40:37,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 5 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-24 21:40:37,573 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1171 transitions. [2023-11-24 21:40:37,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 21:40:37,575 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:40:37,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:40:37,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 21:40:37,576 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:40:37,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:40:37,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1318832788, now seen corresponding path program 1 times [2023-11-24 21:40:37,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:40:37,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351672140] [2023-11-24 21:40:37,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:40:37,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:40:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:40,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:40,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-24 21:40:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:40,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-24 21:40:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-24 21:40:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:40,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-24 21:40:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:40,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-24 21:40:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:40,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-24 21:40:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:40,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-24 21:40:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:40,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 21:40:40,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:40:40,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351672140] [2023-11-24 21:40:40,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351672140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:40:40,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:40:40,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-24 21:40:40,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078973511] [2023-11-24 21:40:40,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:40:40,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:40:40,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:40:40,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:40:40,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:40:40,237 INFO L87 Difference]: Start difference. First operand 792 states and 1171 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-24 21:40:42,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:40:42,907 INFO L93 Difference]: Finished difference Result 2370 states and 3513 transitions. [2023-11-24 21:40:42,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-24 21:40:42,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 79 [2023-11-24 21:40:42,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:40:42,920 INFO L225 Difference]: With dead ends: 2370 [2023-11-24 21:40:42,920 INFO L226 Difference]: Without dead ends: 1595 [2023-11-24 21:40:42,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2023-11-24 21:40:42,923 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 750 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:40:42,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1692 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-24 21:40:42,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2023-11-24 21:40:43,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1564. [2023-11-24 21:40:43,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1269 states have (on average 1.4649330181245075) internal successors, (1859), 1288 states have internal predecessors, (1859), 215 states have call successors, (215), 63 states have call predecessors, (215), 79 states have return successors, (248), 221 states have call predecessors, (248), 213 states have call successors, (248) [2023-11-24 21:40:43,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2322 transitions. [2023-11-24 21:40:43,052 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2322 transitions. Word has length 79 [2023-11-24 21:40:43,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:40:43,052 INFO L495 AbstractCegarLoop]: Abstraction has 1564 states and 2322 transitions. [2023-11-24 21:40:43,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-24 21:40:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2322 transitions. [2023-11-24 21:40:43,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 21:40:43,056 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:40:43,056 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:40:43,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-24 21:40:43,056 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:40:43,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:40:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1622145648, now seen corresponding path program 1 times [2023-11-24 21:40:43,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:40:43,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997822610] [2023-11-24 21:40:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:40:43,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:40:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:45,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:45,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-24 21:40:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:45,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-24 21:40:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:45,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-24 21:40:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:45,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-24 21:40:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:45,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:45,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-24 21:40:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:45,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-24 21:40:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:45,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-24 21:40:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:45,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:40:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:40:45,428 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 21:40:45,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:40:45,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997822610] [2023-11-24 21:40:45,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997822610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:40:45,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:40:45,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-24 21:40:45,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551917527] [2023-11-24 21:40:45,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:40:45,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 21:40:45,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:40:45,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 21:40:45,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-24 21:40:45,433 INFO L87 Difference]: Start difference. First operand 1564 states and 2322 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10)