./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1 --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 ef92dd0c18fa389aa454198685fbcc052698924a127f9f39b737e9548a23680b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:14:24,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:14:24,211 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 08:14:24,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:14:24,216 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:14:24,238 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:14:24,239 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:14:24,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:14:24,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:14:24,239 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:14:24,240 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:14:24,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:14:24,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:14:24,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:14:24,240 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:14:24,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:14:24,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:14:24,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:14:24,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:14:24,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:14:24,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:14:24,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:14:24,241 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:14:24,241 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:14:24,241 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:14:24,241 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:14:24,241 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:14:24,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:14:24,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:14:24,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:14:24,242 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:14:24,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:14:24,242 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:14:24,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:14:24,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:14:24,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:14:24,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:14:24,242 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:14:24,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:14:24,243 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:14:24,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:14:24,243 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:14:24,243 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:14:24,243 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:14:24,243 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:14:24,243 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1 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 -> ef92dd0c18fa389aa454198685fbcc052698924a127f9f39b737e9548a23680b [2024-12-02 08:14:24,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:14:24,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:14:24,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:14:24,501 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:14:24,502 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:14:24,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2024-12-02 08:14:27,219 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/data/4379be326/06fa0519877f447498957c96cbb83dcb/FLAGd07c66bd2 [2024-12-02 08:14:27,598 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:14:27,598 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2024-12-02 08:14:27,632 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/data/4379be326/06fa0519877f447498957c96cbb83dcb/FLAGd07c66bd2 [2024-12-02 08:14:27,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/data/4379be326/06fa0519877f447498957c96cbb83dcb [2024-12-02 08:14:27,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:14:27,651 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:14:27,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:14:27,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:14:27,656 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:14:27,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:14:27" (1/1) ... [2024-12-02 08:14:27,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a662823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:27, skipping insertion in model container [2024-12-02 08:14:27,658 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:14:27" (1/1) ... [2024-12-02 08:14:27,725 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:14:28,199 WARN L250 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_7aa1726b-b3c1-441d-a193-0c3239b23aa1/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2024-12-02 08:14:28,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:14:28,388 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:14:28,541 WARN L250 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_7aa1726b-b3c1-441d-a193-0c3239b23aa1/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2024-12-02 08:14:28,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:14:28,610 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:14:28,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28 WrapperNode [2024-12-02 08:14:28,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:14:28,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:14:28,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:14:28,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:14:28,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,687 INFO L138 Inliner]: procedures = 101, calls = 399, calls flagged for inlining = 41, calls inlined = 38, statements flattened = 1034 [2024-12-02 08:14:28,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:14:28,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:14:28,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:14:28,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:14:28,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,707 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,762 INFO L175 MemorySlicer]: Split 259 memory accesses to 11 slices as follows [2, 21, 7, 19, 44, 21, 3, 2, 17, 90, 33]. 35 percent of accesses are in the largest equivalence class. The 78 initializations are split as follows [2, 21, 7, 0, 0, 0, 0, 0, 15, 0, 33]. The 113 writes are split as follows [0, 0, 0, 19, 44, 18, 1, 1, 1, 29, 0]. [2024-12-02 08:14:28,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,814 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:14:28,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:14:28,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:14:28,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:14:28,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (1/1) ... [2024-12-02 08:14:28,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:14:28,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:14:28,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:14:28,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:14:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 08:14:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 08:14:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 08:14:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 08:14:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 08:14:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 08:14:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-02 08:14:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 08:14:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 08:14:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 08:14:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 08:14:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 08:14:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 08:14:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 08:14:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 08:14:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 08:14:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 08:14:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-12-02 08:14:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-12-02 08:14:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 08:14:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-12-02 08:14:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 08:14:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 08:14:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-12-02 08:14:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 08:14:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-12-02 08:14:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-12-02 08:14:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 08:14:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 08:14:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 08:14:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 08:14:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 08:14:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 08:14:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 08:14:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-02 08:14:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-02 08:14:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-12-02 08:14:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-12-02 08:14:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:14:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:14:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 08:14:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:14:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2024-12-02 08:14:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2024-12-02 08:14:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 08:14:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 08:14:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 08:14:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 08:14:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 08:14:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_tx_fixup [2024-12-02 08:14:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_tx_fixup [2024-12-02 08:14:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_rx_fixup [2024-12-02 08:14:28,907 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_rx_fixup [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-12-02 08:14:28,907 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 08:14:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 08:14:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 08:14:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 08:14:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 08:14:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-02 08:14:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-12-02 08:14:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-12-02 08:14:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:14:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:14:29,231 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:14:29,233 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:14:29,252 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 08:14:34,375 INFO L? ?]: Removed 434 outVars from TransFormulas that were not future-live. [2024-12-02 08:14:34,375 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:14:34,390 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:14:34,390 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:14:34,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:14:34 BoogieIcfgContainer [2024-12-02 08:14:34,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:14:34,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:14:34,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:14:34,398 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:14:34,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:14:27" (1/3) ... [2024-12-02 08:14:34,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bafc9bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:14:34, skipping insertion in model container [2024-12-02 08:14:34,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:14:28" (2/3) ... [2024-12-02 08:14:34,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bafc9bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:14:34, skipping insertion in model container [2024-12-02 08:14:34,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:14:34" (3/3) ... [2024-12-02 08:14:34,400 INFO L128 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2024-12-02 08:14:34,414 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:14:34,417 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i that has 26 procedures, 296 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-12-02 08:14:34,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:14:34,488 INFO L333 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, 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;@9a8a44b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:14:34,488 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:14:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 203 states have (on average 1.3940886699507389) internal successors, (283), 209 states have internal predecessors, (283), 39 states have call successors, (39), 16 states have call predecessors, (39), 15 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 08:14:34,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-02 08:14:34,502 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:34,502 INFO L218 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] [2024-12-02 08:14:34,503 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:34,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:34,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1893792798, now seen corresponding path program 1 times [2024-12-02 08:14:34,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:34,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872958562] [2024-12-02 08:14:34,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:34,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:35,489 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:14:35,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:35,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872958562] [2024-12-02 08:14:35,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872958562] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:35,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:35,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:35,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75834735] [2024-12-02 08:14:35,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:35,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:35,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:35,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:35,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:35,510 INFO L87 Difference]: Start difference. First operand has 259 states, 203 states have (on average 1.3940886699507389) internal successors, (283), 209 states have internal predecessors, (283), 39 states have call successors, (39), 16 states have call predecessors, (39), 15 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 08:14:39,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:14:39,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:39,657 INFO L93 Difference]: Finished difference Result 725 states and 1046 transitions. [2024-12-02 08:14:39,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:39,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2024-12-02 08:14:39,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:39,670 INFO L225 Difference]: With dead ends: 725 [2024-12-02 08:14:39,670 INFO L226 Difference]: Without dead ends: 455 [2024-12-02 08:14:39,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:39,677 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 297 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:39,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 689 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 08:14:39,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-12-02 08:14:39,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-12-02 08:14:39,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 366 states have (on average 1.366120218579235) internal successors, (500), 366 states have internal predecessors, (500), 62 states have call successors, (62), 27 states have call predecessors, (62), 26 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 08:14:39,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 623 transitions. [2024-12-02 08:14:39,747 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 623 transitions. Word has length 42 [2024-12-02 08:14:39,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:39,747 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 623 transitions. [2024-12-02 08:14:39,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 08:14:39,747 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 623 transitions. [2024-12-02 08:14:39,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-12-02 08:14:39,750 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:39,750 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:39,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:14:39,751 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:39,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:39,751 INFO L85 PathProgramCache]: Analyzing trace with hash -640772492, now seen corresponding path program 1 times [2024-12-02 08:14:39,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:39,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264114761] [2024-12-02 08:14:39,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:39,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 08:14:40,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:40,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264114761] [2024-12-02 08:14:40,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264114761] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:40,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:40,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:14:40,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298183069] [2024-12-02 08:14:40,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:40,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:14:40,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:40,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:14:40,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:14:40,547 INFO L87 Difference]: Start difference. First operand 455 states and 623 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:14:40,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:40,688 INFO L93 Difference]: Finished difference Result 1322 states and 1831 transitions. [2024-12-02 08:14:40,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:14:40,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2024-12-02 08:14:40,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:40,697 INFO L225 Difference]: With dead ends: 1322 [2024-12-02 08:14:40,697 INFO L226 Difference]: Without dead ends: 881 [2024-12-02 08:14:40,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:14:40,700 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 309 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:40,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 1343 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:14:40,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-12-02 08:14:40,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2024-12-02 08:14:40,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 711 states have (on average 1.3670886075949367) internal successors, (972), 711 states have internal predecessors, (972), 119 states have call successors, (119), 51 states have call predecessors, (119), 50 states have return successors, (124), 118 states have call predecessors, (124), 118 states have call successors, (124) [2024-12-02 08:14:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1215 transitions. [2024-12-02 08:14:40,755 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1215 transitions. Word has length 52 [2024-12-02 08:14:40,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:40,756 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1215 transitions. [2024-12-02 08:14:40,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:14:40,757 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1215 transitions. [2024-12-02 08:14:40,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 08:14:40,763 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:40,763 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:40,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:14:40,764 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:40,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:40,764 INFO L85 PathProgramCache]: Analyzing trace with hash 524256615, now seen corresponding path program 1 times [2024-12-02 08:14:40,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:40,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400526394] [2024-12-02 08:14:40,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:40,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:41,323 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 08:14:41,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:41,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400526394] [2024-12-02 08:14:41,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400526394] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:41,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:41,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:41,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189923046] [2024-12-02 08:14:41,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:41,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:41,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:41,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:41,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:41,325 INFO L87 Difference]: Start difference. First operand 881 states and 1215 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 08:14:41,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:41,454 INFO L93 Difference]: Finished difference Result 1972 states and 2737 transitions. [2024-12-02 08:14:41,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:41,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2024-12-02 08:14:41,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:41,462 INFO L225 Difference]: With dead ends: 1972 [2024-12-02 08:14:41,463 INFO L226 Difference]: Without dead ends: 1111 [2024-12-02 08:14:41,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:41,466 INFO L435 NwaCegarLoop]: 348 mSDtfsCounter, 115 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:41,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 640 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:14:41,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2024-12-02 08:14:41,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1102. [2024-12-02 08:14:41,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 909 states have (on average 1.3916391639163916) internal successors, (1265), 909 states have internal predecessors, (1265), 132 states have call successors, (132), 61 states have call predecessors, (132), 60 states have return successors, (137), 131 states have call predecessors, (137), 131 states have call successors, (137) [2024-12-02 08:14:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1534 transitions. [2024-12-02 08:14:41,544 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1534 transitions. Word has length 125 [2024-12-02 08:14:41,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:41,544 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1534 transitions. [2024-12-02 08:14:41,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 08:14:41,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1534 transitions. [2024-12-02 08:14:41,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:14:41,550 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:41,550 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:41,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:14:41,551 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:41,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:41,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1191407833, now seen corresponding path program 1 times [2024-12-02 08:14:41,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:41,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990266829] [2024-12-02 08:14:41,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:41,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:42,108 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 08:14:42,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:42,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990266829] [2024-12-02 08:14:42,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990266829] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:42,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:42,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:14:42,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648016838] [2024-12-02 08:14:42,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:42,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:14:42,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:42,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:14:42,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:42,110 INFO L87 Difference]: Start difference. First operand 1102 states and 1534 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 08:14:46,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:14:46,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:46,242 INFO L93 Difference]: Finished difference Result 2918 states and 4063 transitions. [2024-12-02 08:14:46,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:14:46,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 147 [2024-12-02 08:14:46,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:46,251 INFO L225 Difference]: With dead ends: 2918 [2024-12-02 08:14:46,251 INFO L226 Difference]: Without dead ends: 1847 [2024-12-02 08:14:46,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:14:46,254 INFO L435 NwaCegarLoop]: 415 mSDtfsCounter, 283 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:46,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 697 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 08:14:46,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2024-12-02 08:14:46,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1838. [2024-12-02 08:14:46,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1515 states have (on average 1.3762376237623761) internal successors, (2085), 1515 states have internal predecessors, (2085), 218 states have call successors, (218), 105 states have call predecessors, (218), 104 states have return successors, (225), 217 states have call predecessors, (225), 217 states have call successors, (225) [2024-12-02 08:14:46,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2528 transitions. [2024-12-02 08:14:46,313 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2528 transitions. Word has length 147 [2024-12-02 08:14:46,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:46,314 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2528 transitions. [2024-12-02 08:14:46,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 08:14:46,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2528 transitions. [2024-12-02 08:14:46,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:14:46,318 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:46,318 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:46,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:14:46,319 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:46,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:46,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1953761023, now seen corresponding path program 1 times [2024-12-02 08:14:46,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:46,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681992323] [2024-12-02 08:14:46,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:46,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:46,897 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 08:14:46,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:46,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681992323] [2024-12-02 08:14:46,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681992323] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:46,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:46,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:14:46,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906499917] [2024-12-02 08:14:46,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:46,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:14:46,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:46,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:14:46,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:14:46,899 INFO L87 Difference]: Start difference. First operand 1838 states and 2528 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 08:14:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:47,006 INFO L93 Difference]: Finished difference Result 3683 states and 5100 transitions. [2024-12-02 08:14:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:14:47,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 147 [2024-12-02 08:14:47,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:47,016 INFO L225 Difference]: With dead ends: 3683 [2024-12-02 08:14:47,017 INFO L226 Difference]: Without dead ends: 1876 [2024-12-02 08:14:47,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:14:47,022 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 0 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:47,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1335 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:47,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2024-12-02 08:14:47,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1870. [2024-12-02 08:14:47,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1539 states have (on average 1.3703703703703705) internal successors, (2109), 1539 states have internal predecessors, (2109), 218 states have call successors, (218), 105 states have call predecessors, (218), 112 states have return successors, (241), 225 states have call predecessors, (241), 217 states have call successors, (241) [2024-12-02 08:14:47,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2568 transitions. [2024-12-02 08:14:47,104 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2568 transitions. Word has length 147 [2024-12-02 08:14:47,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:47,104 INFO L471 AbstractCegarLoop]: Abstraction has 1870 states and 2568 transitions. [2024-12-02 08:14:47,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 08:14:47,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2568 transitions. [2024-12-02 08:14:47,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 08:14:47,109 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:47,110 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:47,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:14:47,110 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:47,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:47,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1579364857, now seen corresponding path program 1 times [2024-12-02 08:14:47,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:47,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303527081] [2024-12-02 08:14:47,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:47,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 08:14:47,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:47,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303527081] [2024-12-02 08:14:47,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303527081] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:47,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:47,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 08:14:47,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260931875] [2024-12-02 08:14:47,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:47,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:14:47,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:47,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:14:47,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:14:47,928 INFO L87 Difference]: Start difference. First operand 1870 states and 2568 transitions. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 08:14:48,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:48,161 INFO L93 Difference]: Finished difference Result 3765 states and 5185 transitions. [2024-12-02 08:14:48,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:14:48,162 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 154 [2024-12-02 08:14:48,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:48,170 INFO L225 Difference]: With dead ends: 3765 [2024-12-02 08:14:48,170 INFO L226 Difference]: Without dead ends: 1926 [2024-12-02 08:14:48,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:14:48,174 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 15 mSDsluCounter, 2964 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3297 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:48,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3297 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:14:48,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2024-12-02 08:14:48,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1902. [2024-12-02 08:14:48,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1563 states have (on average 1.36468330134357) internal successors, (2133), 1563 states have internal predecessors, (2133), 218 states have call successors, (218), 105 states have call predecessors, (218), 120 states have return successors, (249), 233 states have call predecessors, (249), 217 states have call successors, (249) [2024-12-02 08:14:48,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2600 transitions. [2024-12-02 08:14:48,250 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2600 transitions. Word has length 154 [2024-12-02 08:14:48,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:48,250 INFO L471 AbstractCegarLoop]: Abstraction has 1902 states and 2600 transitions. [2024-12-02 08:14:48,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 08:14:48,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2600 transitions. [2024-12-02 08:14:48,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 08:14:48,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:48,255 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:48,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:14:48,256 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:48,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:48,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1951102521, now seen corresponding path program 1 times [2024-12-02 08:14:48,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:48,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789703993] [2024-12-02 08:14:48,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:48,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-12-02 08:14:48,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:48,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789703993] [2024-12-02 08:14:48,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789703993] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:48,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:48,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:14:48,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021860383] [2024-12-02 08:14:48,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:48,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:14:48,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:48,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:14:48,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:14:48,886 INFO L87 Difference]: Start difference. First operand 1902 states and 2600 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 08:14:48,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:48,949 INFO L93 Difference]: Finished difference Result 3783 states and 5177 transitions. [2024-12-02 08:14:48,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:14:48,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2024-12-02 08:14:48,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:48,956 INFO L225 Difference]: With dead ends: 3783 [2024-12-02 08:14:48,956 INFO L226 Difference]: Without dead ends: 1903 [2024-12-02 08:14:48,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:14:48,960 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 0 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:48,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1003 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2024-12-02 08:14:49,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1903. [2024-12-02 08:14:49,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1564 states have (on average 1.3644501278772379) internal successors, (2134), 1564 states have internal predecessors, (2134), 218 states have call successors, (218), 105 states have call predecessors, (218), 120 states have return successors, (249), 233 states have call predecessors, (249), 217 states have call successors, (249) [2024-12-02 08:14:49,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2601 transitions. [2024-12-02 08:14:49,012 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2601 transitions. Word has length 160 [2024-12-02 08:14:49,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:49,012 INFO L471 AbstractCegarLoop]: Abstraction has 1903 states and 2601 transitions. [2024-12-02 08:14:49,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 08:14:49,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2601 transitions. [2024-12-02 08:14:49,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 08:14:49,015 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:49,016 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:49,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:14:49,016 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:49,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:49,016 INFO L85 PathProgramCache]: Analyzing trace with hash -717048142, now seen corresponding path program 1 times [2024-12-02 08:14:49,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:49,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720254408] [2024-12-02 08:14:49,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:49,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:49,660 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-12-02 08:14:49,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:49,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720254408] [2024-12-02 08:14:49,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720254408] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:14:49,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244775840] [2024-12-02 08:14:49,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:49,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:14:49,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:14:49,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:14:49,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:14:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:50,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:14:50,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:14:50,668 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-12-02 08:14:50,668 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:14:51,019 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 08:14:51,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244775840] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:14:51,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:14:51,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 6] total 10 [2024-12-02 08:14:51,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330314445] [2024-12-02 08:14:51,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:51,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:14:51,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:51,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:14:51,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:14:51,021 INFO L87 Difference]: Start difference. First operand 1903 states and 2601 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 08:14:51,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:51,101 INFO L93 Difference]: Finished difference Result 3778 states and 5171 transitions. [2024-12-02 08:14:51,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:14:51,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2024-12-02 08:14:51,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:51,111 INFO L225 Difference]: With dead ends: 3778 [2024-12-02 08:14:51,112 INFO L226 Difference]: Without dead ends: 1904 [2024-12-02 08:14:51,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:14:51,117 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 0 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:51,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 669 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:14:51,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2024-12-02 08:14:51,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1904. [2024-12-02 08:14:51,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1904 states, 1565 states have (on average 1.3642172523961662) internal successors, (2135), 1565 states have internal predecessors, (2135), 218 states have call successors, (218), 105 states have call predecessors, (218), 120 states have return successors, (249), 233 states have call predecessors, (249), 217 states have call successors, (249) [2024-12-02 08:14:51,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2602 transitions. [2024-12-02 08:14:51,198 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2602 transitions. Word has length 161 [2024-12-02 08:14:51,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:51,199 INFO L471 AbstractCegarLoop]: Abstraction has 1904 states and 2602 transitions. [2024-12-02 08:14:51,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 08:14:51,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2602 transitions. [2024-12-02 08:14:51,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 08:14:51,204 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:51,204 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:51,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:14:51,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-12-02 08:14:51,405 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:51,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:51,405 INFO L85 PathProgramCache]: Analyzing trace with hash 109012722, now seen corresponding path program 1 times [2024-12-02 08:14:51,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:51,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858875124] [2024-12-02 08:14:51,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:51,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:52,512 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 08:14:52,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:52,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858875124] [2024-12-02 08:14:52,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858875124] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:14:52,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296523172] [2024-12-02 08:14:52,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:52,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:14:52,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:14:52,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:14:52,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:14:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:53,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 08:14:53,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:14:54,013 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-12-02 08:14:54,013 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:14:54,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296523172] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:54,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:14:54,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2024-12-02 08:14:54,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90934317] [2024-12-02 08:14:54,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:54,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:14:54,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:54,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:14:54,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:14:54,015 INFO L87 Difference]: Start difference. First operand 1904 states and 2602 transitions. Second operand has 15 states, 14 states have (on average 7.214285714285714) internal successors, (101), 12 states have internal predecessors, (101), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 08:14:54,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:54,439 INFO L93 Difference]: Finished difference Result 3861 states and 5314 transitions. [2024-12-02 08:14:54,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:14:54,440 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.214285714285714) internal successors, (101), 12 states have internal predecessors, (101), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) Word has length 162 [2024-12-02 08:14:54,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:54,451 INFO L225 Difference]: With dead ends: 3861 [2024-12-02 08:14:54,451 INFO L226 Difference]: Without dead ends: 1990 [2024-12-02 08:14:54,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:14:54,456 INFO L435 NwaCegarLoop]: 346 mSDtfsCounter, 11 mSDsluCounter, 4103 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4449 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:54,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4449 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:14:54,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2024-12-02 08:14:54,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1944. [2024-12-02 08:14:54,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1597 states have (on average 1.3519098309329993) internal successors, (2159), 1597 states have internal predecessors, (2159), 226 states have call successors, (226), 105 states have call predecessors, (226), 120 states have return successors, (257), 241 states have call predecessors, (257), 225 states have call successors, (257) [2024-12-02 08:14:54,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2642 transitions. [2024-12-02 08:14:54,539 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2642 transitions. Word has length 162 [2024-12-02 08:14:54,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:54,539 INFO L471 AbstractCegarLoop]: Abstraction has 1944 states and 2642 transitions. [2024-12-02 08:14:54,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.214285714285714) internal successors, (101), 12 states have internal predecessors, (101), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 08:14:54,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2642 transitions. [2024-12-02 08:14:54,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 08:14:54,544 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:54,544 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:54,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 08:14:54,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:14:54,745 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:54,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:54,746 INFO L85 PathProgramCache]: Analyzing trace with hash 949502904, now seen corresponding path program 1 times [2024-12-02 08:14:54,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:54,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048615780] [2024-12-02 08:14:54,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:54,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:55,608 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 08:14:55,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:55,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048615780] [2024-12-02 08:14:55,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048615780] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:14:55,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620247300] [2024-12-02 08:14:55,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:55,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:14:55,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:14:55,611 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:14:55,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:14:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:56,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 08:14:56,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:14:56,891 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 08:14:56,891 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:14:57,166 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 08:14:57,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620247300] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:14:57,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:14:57,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-02 08:14:57,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908975391] [2024-12-02 08:14:57,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:14:57,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:14:57,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:57,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:14:57,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:14:57,168 INFO L87 Difference]: Start difference. First operand 1944 states and 2642 transitions. Second operand has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-12-02 08:14:57,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:57,297 INFO L93 Difference]: Finished difference Result 3869 states and 5264 transitions. [2024-12-02 08:14:57,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:14:57,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 171 [2024-12-02 08:14:57,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:57,308 INFO L225 Difference]: With dead ends: 3869 [2024-12-02 08:14:57,308 INFO L226 Difference]: Without dead ends: 1946 [2024-12-02 08:14:57,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:14:57,313 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 0 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1330 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:57,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1330 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:14:57,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2024-12-02 08:14:57,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1946. [2024-12-02 08:14:57,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1946 states, 1599 states have (on average 1.3514696685428393) internal successors, (2161), 1599 states have internal predecessors, (2161), 226 states have call successors, (226), 105 states have call predecessors, (226), 120 states have return successors, (257), 241 states have call predecessors, (257), 225 states have call successors, (257) [2024-12-02 08:14:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2644 transitions. [2024-12-02 08:14:57,388 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2644 transitions. Word has length 171 [2024-12-02 08:14:57,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:57,388 INFO L471 AbstractCegarLoop]: Abstraction has 1946 states and 2644 transitions. [2024-12-02 08:14:57,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-12-02 08:14:57,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2644 transitions. [2024-12-02 08:14:57,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 08:14:57,393 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:57,393 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:57,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:14:57,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:14:57,594 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:57,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:57,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1494550799, now seen corresponding path program 2 times [2024-12-02 08:14:57,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:57,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840289591] [2024-12-02 08:14:57,594 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:14:57,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:58,129 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 08:14:58,130 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:14:58,624 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-12-02 08:14:58,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:58,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840289591] [2024-12-02 08:14:58,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840289591] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:14:58,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189340964] [2024-12-02 08:14:58,625 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:14:58,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:14:58,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:14:58,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:14:58,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa1726b-b3c1-441d-a193-0c3239b23aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process