./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--cx82310_eth.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_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/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_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/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--cx82310_eth.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/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_981a6e02-f2f0-4c4a-a35e-62599fd135a7/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 4e983f35cff7a0c67962e23f6c3d66292f25c728e4d1df204c975f306d1512a3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:36:11,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:36:11,196 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 06:36:11,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:36:11,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:36:11,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:36:11,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:36:11,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:36:11,221 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:36:11,221 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:36:11,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:36:11,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:36:11,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:36:11,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:36:11,222 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:36:11,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:36:11,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:36:11,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:36:11,223 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:36:11,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:36:11,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:36:11,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:36:11,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:36:11,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:36:11,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:36:11,224 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:36:11,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:36:11,224 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:36:11,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:36:11,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:36:11,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:36:11,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:36:11,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:36:11,224 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_981a6e02-f2f0-4c4a-a35e-62599fd135a7/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 -> 4e983f35cff7a0c67962e23f6c3d66292f25c728e4d1df204c975f306d1512a3 [2024-12-02 06:36:11,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:36:11,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:36:11,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:36:11,434 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:36:11,434 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:36:11,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2024-12-02 06:36:14,041 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/data/18f5a79dd/d9ffb5abec344128afa696bb4a6c55fa/FLAG56d3b51e7 [2024-12-02 06:36:14,379 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:36:14,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2024-12-02 06:36:14,407 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/data/18f5a79dd/d9ffb5abec344128afa696bb4a6c55fa/FLAG56d3b51e7 [2024-12-02 06:36:14,597 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/data/18f5a79dd/d9ffb5abec344128afa696bb4a6c55fa [2024-12-02 06:36:14,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:36:14,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:36:14,602 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:36:14,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:36:14,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:36:14,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:36:14" (1/1) ... [2024-12-02 06:36:14,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce566c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:14, skipping insertion in model container [2024-12-02 06:36:14,608 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:36:14" (1/1) ... [2024-12-02 06:36:14,677 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:36:15,147 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_981a6e02-f2f0-4c4a-a35e-62599fd135a7/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i[159401,159414] [2024-12-02 06:36:15,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:36:15,390 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:36:15,487 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_981a6e02-f2f0-4c4a-a35e-62599fd135a7/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i[159401,159414] [2024-12-02 06:36:15,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:36:15,555 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:36:15,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15 WrapperNode [2024-12-02 06:36:15,555 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:36:15,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:36:15,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:36:15,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:36:15,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,648 INFO L138 Inliner]: procedures = 102, calls = 350, calls flagged for inlining = 36, calls inlined = 33, statements flattened = 1062 [2024-12-02 06:36:15,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:36:15,649 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:36:15,649 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:36:15,650 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:36:15,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,668 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,725 INFO L175 MemorySlicer]: Split 195 memory accesses to 10 slices as follows [2, 19, 2, 2, 3, 44, 79, 26, 17, 1]. 41 percent of accesses are in the largest equivalence class. The 45 initializations are split as follows [2, 0, 0, 0, 0, 0, 2, 26, 15, 0]. The 86 writes are split as follows [0, 19, 1, 0, 1, 44, 19, 0, 1, 1]. [2024-12-02 06:36:15,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,766 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,787 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:36:15,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:36:15,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:36:15,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:36:15,807 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (1/1) ... [2024-12-02 06:36:15,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:36:15,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:36:15,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:36:15,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:36:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 06:36:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 06:36:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 06:36:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 06:36:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 06:36:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 06:36:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 06:36:15,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 06:36:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-12-02 06:36:15,864 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 06:36:15,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 06:36:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_tx_fixup [2024-12-02 06:36:15,865 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_tx_fixup [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-12-02 06:36:15,865 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 06:36:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 06:36:15,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 06:36:15,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 06:36:15,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 06:36:15,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 06:36:15,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-12-02 06:36:15,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-12-02 06:36:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 06:36:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 06:36:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 06:36:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 06:36:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 06:36:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 06:36:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 06:36:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 06:36:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-12-02 06:36:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-12-02 06:36:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-12-02 06:36:15,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-12-02 06:36:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 06:36:15,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 06:36:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_rx_fixup [2024-12-02 06:36:15,867 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_rx_fixup [2024-12-02 06:36:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2024-12-02 06:36:15,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2024-12-02 06:36:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-12-02 06:36:15,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-12-02 06:36:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 06:36:15,867 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 06:36:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 06:36:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 06:36:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 06:36:15,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 06:36:15,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-12-02 06:36:15,868 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 06:36:15,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 06:36:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 06:36:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-02 06:36:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-02 06:36:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-12-02 06:36:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 06:36:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 06:36:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 06:36:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 06:36:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 06:36:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 06:36:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 06:36:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-02 06:36:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-02 06:36:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-12-02 06:36:15,869 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2024-12-02 06:36:15,869 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:36:15,870 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 06:36:15,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 06:36:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 06:36:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 06:36:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 06:36:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 06:36:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 06:36:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-12-02 06:36:15,872 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-12-02 06:36:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-12-02 06:36:15,872 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-12-02 06:36:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-12-02 06:36:15,872 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-12-02 06:36:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_cmd [2024-12-02 06:36:15,872 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_cmd [2024-12-02 06:36:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:36:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 06:36:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 06:36:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 06:36:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 06:36:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 06:36:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-12-02 06:36:15,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-12-02 06:36:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:36:15,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:36:16,230 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:36:16,232 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:36:16,269 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 06:36:21,685 INFO L? ?]: Removed 588 outVars from TransFormulas that were not future-live. [2024-12-02 06:36:21,685 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:36:21,701 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:36:21,701 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:36:21,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:36:21 BoogieIcfgContainer [2024-12-02 06:36:21,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:36:21,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:36:21,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:36:21,708 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:36:21,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:36:14" (1/3) ... [2024-12-02 06:36:21,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4077b47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:36:21, skipping insertion in model container [2024-12-02 06:36:21,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:15" (2/3) ... [2024-12-02 06:36:21,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4077b47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:36:21, skipping insertion in model container [2024-12-02 06:36:21,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:36:21" (3/3) ... [2024-12-02 06:36:21,710 INFO L128 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2024-12-02 06:36:21,724 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:36:21,727 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i that has 40 procedures, 412 locations, 1 initial locations, 31 loop locations, and 1 error locations. [2024-12-02 06:36:21,784 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:36:21,795 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;@40701e07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:36:21,795 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:36:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 339 states, 252 states have (on average 1.3849206349206349) internal successors, (349), 258 states have internal predecessors, (349), 63 states have call successors, (63), 23 states have call predecessors, (63), 22 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-12-02 06:36:21,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-02 06:36:21,809 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:21,809 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:36:21,810 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:21,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:21,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1875678559, now seen corresponding path program 1 times [2024-12-02 06:36:21,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:21,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384791593] [2024-12-02 06:36:21,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:21,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:22,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:36:22,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:22,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384791593] [2024-12-02 06:36:22,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384791593] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:36:22,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:36:22,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:36:22,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055945504] [2024-12-02 06:36:22,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:36:22,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:36:22,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:36:22,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:36:22,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:36:22,718 INFO L87 Difference]: Start difference. First operand has 339 states, 252 states have (on average 1.3849206349206349) internal successors, (349), 258 states have internal predecessors, (349), 63 states have call successors, (63), 23 states have call predecessors, (63), 22 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 06:36:26,746 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 06:36:26,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:36:26,875 INFO L93 Difference]: Finished difference Result 965 states and 1406 transitions. [2024-12-02 06:36:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:36:26,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2024-12-02 06:36:26,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:36:26,890 INFO L225 Difference]: With dead ends: 965 [2024-12-02 06:36:26,890 INFO L226 Difference]: Without dead ends: 615 [2024-12-02 06:36:26,895 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 06:36:26,898 INFO L435 NwaCegarLoop]: 471 mSDtfsCounter, 410 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 915 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 06:36:26,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 915 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 06:36:26,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-12-02 06:36:26,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2024-12-02 06:36:26,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 464 states have (on average 1.3577586206896552) internal successors, (630), 464 states have internal predecessors, (630), 110 states have call successors, (110), 41 states have call predecessors, (110), 40 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-12-02 06:36:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 849 transitions. [2024-12-02 06:36:26,993 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 849 transitions. Word has length 36 [2024-12-02 06:36:26,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:36:26,993 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 849 transitions. [2024-12-02 06:36:26,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 06:36:26,994 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 849 transitions. [2024-12-02 06:36:26,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-12-02 06:36:26,996 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:26,997 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, 1, 1, 1, 1] [2024-12-02 06:36:26,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:36:26,997 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:26,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:26,998 INFO L85 PathProgramCache]: Analyzing trace with hash -733028813, now seen corresponding path program 1 times [2024-12-02 06:36:26,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:26,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431867387] [2024-12-02 06:36:26,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:26,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:27,785 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 06:36:27,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:27,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431867387] [2024-12-02 06:36:27,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431867387] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:36:27,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:36:27,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:36:27,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679662984] [2024-12-02 06:36:27,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:36:27,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:36:27,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:36:27,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:36:27,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:36:27,788 INFO L87 Difference]: Start difference. First operand 615 states and 849 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:36:27,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:36:27,962 INFO L93 Difference]: Finished difference Result 1806 states and 2523 transitions. [2024-12-02 06:36:27,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:36:27,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2024-12-02 06:36:27,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:36:27,973 INFO L225 Difference]: With dead ends: 1806 [2024-12-02 06:36:27,973 INFO L226 Difference]: Without dead ends: 1203 [2024-12-02 06:36:27,976 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 06:36:27,977 INFO L435 NwaCegarLoop]: 484 mSDtfsCounter, 422 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1875 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 06:36:27,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1875 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:36:27,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2024-12-02 06:36:28,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1203. [2024-12-02 06:36:28,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 908 states have (on average 1.3579295154185023) internal successors, (1233), 908 states have internal predecessors, (1233), 216 states have call successors, (216), 79 states have call predecessors, (216), 78 states have return successors, (225), 215 states have call predecessors, (225), 215 states have call successors, (225) [2024-12-02 06:36:28,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1674 transitions. [2024-12-02 06:36:28,052 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1674 transitions. Word has length 46 [2024-12-02 06:36:28,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:36:28,052 INFO L471 AbstractCegarLoop]: Abstraction has 1203 states and 1674 transitions. [2024-12-02 06:36:28,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:36:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1674 transitions. [2024-12-02 06:36:28,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 06:36:28,058 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:28,058 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 06:36:28,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:36:28,058 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:28,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:28,059 INFO L85 PathProgramCache]: Analyzing trace with hash -14293221, now seen corresponding path program 1 times [2024-12-02 06:36:28,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:28,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062497538] [2024-12-02 06:36:28,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:28,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 06:36:28,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:28,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062497538] [2024-12-02 06:36:28,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062497538] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:36:28,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:36:28,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:36:28,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412594032] [2024-12-02 06:36:28,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:36:28,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:36:28,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:36:28,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:36:28,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:36:28,575 INFO L87 Difference]: Start difference. First operand 1203 states and 1674 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 06:36:28,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:36:28,715 INFO L93 Difference]: Finished difference Result 2618 states and 3658 transitions. [2024-12-02 06:36:28,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:36:28,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2024-12-02 06:36:28,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:36:28,724 INFO L225 Difference]: With dead ends: 2618 [2024-12-02 06:36:28,724 INFO L226 Difference]: Without dead ends: 1433 [2024-12-02 06:36:28,728 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 06:36:28,729 INFO L435 NwaCegarLoop]: 461 mSDtfsCounter, 112 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 869 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 06:36:28,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 869 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:36:28,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2024-12-02 06:36:28,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1424. [2024-12-02 06:36:28,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1106 states have (on average 1.379746835443038) internal successors, (1526), 1106 states have internal predecessors, (1526), 229 states have call successors, (229), 89 states have call predecessors, (229), 88 states have return successors, (238), 228 states have call predecessors, (238), 228 states have call successors, (238) [2024-12-02 06:36:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 1993 transitions. [2024-12-02 06:36:28,806 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 1993 transitions. Word has length 83 [2024-12-02 06:36:28,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:36:28,806 INFO L471 AbstractCegarLoop]: Abstraction has 1424 states and 1993 transitions. [2024-12-02 06:36:28,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 06:36:28,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 1993 transitions. [2024-12-02 06:36:28,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 06:36:28,811 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:28,811 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-12-02 06:36:28,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:36:28,811 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:28,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:28,812 INFO L85 PathProgramCache]: Analyzing trace with hash -86038938, now seen corresponding path program 1 times [2024-12-02 06:36:28,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:28,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966700556] [2024-12-02 06:36:28,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:28,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:29,315 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-02 06:36:29,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:29,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966700556] [2024-12-02 06:36:29,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966700556] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:36:29,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:36:29,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:36:29,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107408419] [2024-12-02 06:36:29,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:36:29,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:36:29,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:36:29,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:36:29,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:36:29,317 INFO L87 Difference]: Start difference. First operand 1424 states and 1993 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 06:36:33,334 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 06:36:33,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:36:33,494 INFO L93 Difference]: Finished difference Result 3576 states and 4988 transitions. [2024-12-02 06:36:33,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:36:33,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2024-12-02 06:36:33,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:36:33,507 INFO L225 Difference]: With dead ends: 3576 [2024-12-02 06:36:33,507 INFO L226 Difference]: Without dead ends: 2181 [2024-12-02 06:36:33,512 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 06:36:33,513 INFO L435 NwaCegarLoop]: 594 mSDtfsCounter, 394 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 876 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 06:36:33,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 876 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 06:36:33,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-12-02 06:36:33,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2172. [2024-12-02 06:36:33,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2172 states, 1692 states have (on average 1.367612293144208) internal successors, (2314), 1692 states have internal predecessors, (2314), 331 states have call successors, (331), 149 states have call predecessors, (331), 148 states have return successors, (346), 330 states have call predecessors, (346), 330 states have call successors, (346) [2024-12-02 06:36:33,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 2991 transitions. [2024-12-02 06:36:33,636 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 2991 transitions. Word has length 111 [2024-12-02 06:36:33,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:36:33,637 INFO L471 AbstractCegarLoop]: Abstraction has 2172 states and 2991 transitions. [2024-12-02 06:36:33,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 06:36:33,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 2991 transitions. [2024-12-02 06:36:33,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 06:36:33,640 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:33,641 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-12-02 06:36:33,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:36:33,641 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:33,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:33,641 INFO L85 PathProgramCache]: Analyzing trace with hash -363531002, now seen corresponding path program 1 times [2024-12-02 06:36:33,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:33,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676702816] [2024-12-02 06:36:33,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:33,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 06:36:34,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:34,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676702816] [2024-12-02 06:36:34,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676702816] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:36:34,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:36:34,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:36:34,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759252635] [2024-12-02 06:36:34,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:36:34,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:36:34,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:36:34,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:36:34,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:36:34,419 INFO L87 Difference]: Start difference. First operand 2172 states and 2991 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 06:36:34,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:36:34,529 INFO L93 Difference]: Finished difference Result 4353 states and 6054 transitions. [2024-12-02 06:36:34,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:36:34,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-12-02 06:36:34,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:36:34,541 INFO L225 Difference]: With dead ends: 4353 [2024-12-02 06:36:34,542 INFO L226 Difference]: Without dead ends: 2210 [2024-12-02 06:36:34,548 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 06:36:34,549 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 0 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1787 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 06:36:34,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1787 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:36:34,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2024-12-02 06:36:34,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2204. [2024-12-02 06:36:34,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 1716 states have (on average 1.3624708624708626) internal successors, (2338), 1716 states have internal predecessors, (2338), 331 states have call successors, (331), 149 states have call predecessors, (331), 156 states have return successors, (364), 338 states have call predecessors, (364), 330 states have call successors, (364) [2024-12-02 06:36:34,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 3033 transitions. [2024-12-02 06:36:34,653 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 3033 transitions. Word has length 111 [2024-12-02 06:36:34,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:36:34,654 INFO L471 AbstractCegarLoop]: Abstraction has 2204 states and 3033 transitions. [2024-12-02 06:36:34,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 06:36:34,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 3033 transitions. [2024-12-02 06:36:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 06:36:34,658 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:34,658 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 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] [2024-12-02 06:36:34,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:36:34,658 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:34,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:34,658 INFO L85 PathProgramCache]: Analyzing trace with hash 5611869, now seen corresponding path program 1 times [2024-12-02 06:36:34,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:34,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116312740] [2024-12-02 06:36:34,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:34,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:35,680 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 06:36:35,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:35,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116312740] [2024-12-02 06:36:35,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116312740] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:36:35,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:36:35,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 06:36:35,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107072791] [2024-12-02 06:36:35,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:36:35,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 06:36:35,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:36:35,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 06:36:35,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:36:35,682 INFO L87 Difference]: Start difference. First operand 2204 states and 3033 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 06:36:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:36:35,962 INFO L93 Difference]: Finished difference Result 4435 states and 6142 transitions. [2024-12-02 06:36:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 06:36:35,963 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2024-12-02 06:36:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:36:35,978 INFO L225 Difference]: With dead ends: 4435 [2024-12-02 06:36:35,978 INFO L226 Difference]: Without dead ends: 2260 [2024-12-02 06:36:35,986 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 06:36:35,987 INFO L435 NwaCegarLoop]: 446 mSDtfsCounter, 15 mSDsluCounter, 3984 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4430 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:36:35,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4430 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:36:35,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2024-12-02 06:36:36,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2236. [2024-12-02 06:36:36,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 1740 states have (on average 1.3574712643678162) internal successors, (2362), 1740 states have internal predecessors, (2362), 331 states have call successors, (331), 149 states have call predecessors, (331), 164 states have return successors, (372), 346 states have call predecessors, (372), 330 states have call successors, (372) [2024-12-02 06:36:36,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 3065 transitions. [2024-12-02 06:36:36,101 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 3065 transitions. Word has length 118 [2024-12-02 06:36:36,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:36:36,102 INFO L471 AbstractCegarLoop]: Abstraction has 2236 states and 3065 transitions. [2024-12-02 06:36:36,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 06:36:36,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 3065 transitions. [2024-12-02 06:36:36,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 06:36:36,106 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:36,106 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 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] [2024-12-02 06:36:36,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:36:36,106 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:36,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:36,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1268464922, now seen corresponding path program 1 times [2024-12-02 06:36:36,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:36,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908307639] [2024-12-02 06:36:36,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:36,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:36,860 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-12-02 06:36:36,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:36,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908307639] [2024-12-02 06:36:36,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908307639] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:36:36,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:36:36,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:36:36,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868845796] [2024-12-02 06:36:36,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:36:36,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:36:36,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:36:36,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:36:36,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:36:36,863 INFO L87 Difference]: Start difference. First operand 2236 states and 3065 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:36:36,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:36:36,944 INFO L93 Difference]: Finished difference Result 4453 states and 6110 transitions. [2024-12-02 06:36:36,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:36:36,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-12-02 06:36:36,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:36:36,957 INFO L225 Difference]: With dead ends: 4453 [2024-12-02 06:36:36,957 INFO L226 Difference]: Without dead ends: 2237 [2024-12-02 06:36:36,963 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 06:36:36,963 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 0 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1342 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 06:36:36,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1342 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:36:36,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2024-12-02 06:36:37,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 2237. [2024-12-02 06:36:37,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 1741 states have (on average 1.357265939115451) internal successors, (2363), 1741 states have internal predecessors, (2363), 331 states have call successors, (331), 149 states have call predecessors, (331), 164 states have return successors, (372), 346 states have call predecessors, (372), 330 states have call successors, (372) [2024-12-02 06:36:37,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 3066 transitions. [2024-12-02 06:36:37,062 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 3066 transitions. Word has length 124 [2024-12-02 06:36:37,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:36:37,063 INFO L471 AbstractCegarLoop]: Abstraction has 2237 states and 3066 transitions. [2024-12-02 06:36:37,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:36:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3066 transitions. [2024-12-02 06:36:37,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 06:36:37,067 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:37,067 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 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] [2024-12-02 06:36:37,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:36:37,067 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:37,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:37,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1746398353, now seen corresponding path program 1 times [2024-12-02 06:36:37,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:37,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534313403] [2024-12-02 06:36:37,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:37,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:37,888 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-12-02 06:36:37,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:37,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534313403] [2024-12-02 06:36:37,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534313403] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:36:37,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218071536] [2024-12-02 06:36:37,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:37,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:36:37,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:36:37,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:36:37,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:36:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:38,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 1507 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 06:36:38,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:36:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-02 06:36:38,925 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:36:39,180 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 06:36:39,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218071536] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 06:36:39,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:36:39,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 6] total 10 [2024-12-02 06:36:39,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932518465] [2024-12-02 06:36:39,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:36:39,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:36:39,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:36:39,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:36:39,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:36:39,182 INFO L87 Difference]: Start difference. First operand 2237 states and 3066 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:36:39,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:36:39,241 INFO L93 Difference]: Finished difference Result 4448 states and 6104 transitions. [2024-12-02 06:36:39,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:36:39,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-12-02 06:36:39,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:36:39,251 INFO L225 Difference]: With dead ends: 4448 [2024-12-02 06:36:39,251 INFO L226 Difference]: Without dead ends: 2238 [2024-12-02 06:36:39,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 245 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 06:36:39,255 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 0 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:36:39,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1341 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:36:39,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2238 states. [2024-12-02 06:36:39,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2238 to 2238. [2024-12-02 06:36:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2238 states, 1742 states have (on average 1.357060849598163) internal successors, (2364), 1742 states have internal predecessors, (2364), 331 states have call successors, (331), 149 states have call predecessors, (331), 164 states have return successors, (372), 346 states have call predecessors, (372), 330 states have call successors, (372) [2024-12-02 06:36:39,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 3067 transitions. [2024-12-02 06:36:39,313 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 3067 transitions. Word has length 125 [2024-12-02 06:36:39,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:36:39,313 INFO L471 AbstractCegarLoop]: Abstraction has 2238 states and 3067 transitions. [2024-12-02 06:36:39,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:36:39,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 3067 transitions. [2024-12-02 06:36:39,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 06:36:39,316 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:39,316 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:36:39,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:36:39,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-12-02 06:36:39,517 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:39,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:39,518 INFO L85 PathProgramCache]: Analyzing trace with hash -584546573, now seen corresponding path program 1 times [2024-12-02 06:36:39,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:39,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604415683] [2024-12-02 06:36:39,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:39,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:39,948 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-12-02 06:36:39,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:39,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604415683] [2024-12-02 06:36:39,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604415683] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:36:39,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:36:39,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:36:39,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547317509] [2024-12-02 06:36:39,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:36:39,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:36:39,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:36:39,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:36:39,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:36:39,950 INFO L87 Difference]: Start difference. First operand 2238 states and 3067 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 06:36:40,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:36:40,020 INFO L93 Difference]: Finished difference Result 4453 states and 6128 transitions. [2024-12-02 06:36:40,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:36:40,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 146 [2024-12-02 06:36:40,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:36:40,032 INFO L225 Difference]: With dead ends: 4453 [2024-12-02 06:36:40,032 INFO L226 Difference]: Without dead ends: 2246 [2024-12-02 06:36:40,038 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 06:36:40,038 INFO L435 NwaCegarLoop]: 449 mSDtfsCounter, 0 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 894 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 06:36:40,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 894 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:36:40,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2024-12-02 06:36:40,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2246. [2024-12-02 06:36:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 1750 states have (on average 1.3554285714285714) internal successors, (2372), 1750 states have internal predecessors, (2372), 331 states have call successors, (331), 149 states have call predecessors, (331), 164 states have return successors, (372), 346 states have call predecessors, (372), 330 states have call successors, (372) [2024-12-02 06:36:40,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 3075 transitions. [2024-12-02 06:36:40,131 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 3075 transitions. Word has length 146 [2024-12-02 06:36:40,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:36:40,131 INFO L471 AbstractCegarLoop]: Abstraction has 2246 states and 3075 transitions. [2024-12-02 06:36:40,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 06:36:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 3075 transitions. [2024-12-02 06:36:40,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 06:36:40,136 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:40,136 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:36:40,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:36:40,136 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:40,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:40,137 INFO L85 PathProgramCache]: Analyzing trace with hash -150817487, now seen corresponding path program 1 times [2024-12-02 06:36:40,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:40,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809617904] [2024-12-02 06:36:40,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:40,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:40,939 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-12-02 06:36:40,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:40,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809617904] [2024-12-02 06:36:40,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809617904] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:36:40,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072162818] [2024-12-02 06:36:40,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:40,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:36:40,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:36:40,941 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:36:40,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:36:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:41,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 1595 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-12-02 06:36:41,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:36:42,466 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-12-02 06:36:42,466 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:36:42,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072162818] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:36:42,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:36:42,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 19 [2024-12-02 06:36:42,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855580430] [2024-12-02 06:36:42,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:36:42,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 06:36:42,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:36:42,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 06:36:42,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:36:42,468 INFO L87 Difference]: Start difference. First operand 2246 states and 3075 transitions. Second operand has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 12 states have internal predecessors, (97), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 7 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 06:36:42,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:36:42,932 INFO L93 Difference]: Finished difference Result 4795 states and 6662 transitions. [2024-12-02 06:36:42,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 06:36:42,933 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 12 states have internal predecessors, (97), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 7 states have call predecessors, (15), 3 states have call successors, (15) Word has length 146 [2024-12-02 06:36:42,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:36:42,945 INFO L225 Difference]: With dead ends: 4795 [2024-12-02 06:36:42,945 INFO L226 Difference]: Without dead ends: 2580 [2024-12-02 06:36:42,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2024-12-02 06:36:42,951 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 34 mSDsluCounter, 6344 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 6838 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:36:42,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 6838 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:36:42,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2024-12-02 06:36:43,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2302. [2024-12-02 06:36:43,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 1790 states have (on average 1.3430167597765363) internal successors, (2404), 1790 states have internal predecessors, (2404), 339 states have call successors, (339), 149 states have call predecessors, (339), 172 states have return successors, (396), 362 states have call predecessors, (396), 338 states have call successors, (396) [2024-12-02 06:36:43,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3139 transitions. [2024-12-02 06:36:43,057 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3139 transitions. Word has length 146 [2024-12-02 06:36:43,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:36:43,058 INFO L471 AbstractCegarLoop]: Abstraction has 2302 states and 3139 transitions. [2024-12-02 06:36:43,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 12 states have internal predecessors, (97), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 7 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 06:36:43,058 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3139 transitions. [2024-12-02 06:36:43,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 06:36:43,061 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:43,062 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 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] [2024-12-02 06:36:43,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:36:43,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 06:36:43,262 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:43,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:43,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1937718295, now seen corresponding path program 1 times [2024-12-02 06:36:43,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:43,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885529648] [2024-12-02 06:36:43,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:43,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:43,915 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 06:36:43,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:43,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885529648] [2024-12-02 06:36:43,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885529648] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:36:43,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132707519] [2024-12-02 06:36:43,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:43,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:36:43,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:36:43,917 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:36:43,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:36:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:44,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 1522 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-12-02 06:36:44,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:36:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 06:36:45,325 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:36:45,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132707519] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:36:45,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:36:45,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 19 [2024-12-02 06:36:45,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138027038] [2024-12-02 06:36:45,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:36:45,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 06:36:45,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:36:45,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 06:36:45,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:36:45,326 INFO L87 Difference]: Start difference. First operand 2302 states and 3139 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 06:36:45,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:36:45,657 INFO L93 Difference]: Finished difference Result 4899 states and 6750 transitions. [2024-12-02 06:36:45,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 06:36:45,658 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) Word has length 126 [2024-12-02 06:36:45,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:36:45,667 INFO L225 Difference]: With dead ends: 4899 [2024-12-02 06:36:45,668 INFO L226 Difference]: Without dead ends: 2628 [2024-12-02 06:36:45,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:36:45,672 INFO L435 NwaCegarLoop]: 504 mSDtfsCounter, 38 mSDsluCounter, 6468 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6972 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:36:45,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 6972 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:36:45,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2024-12-02 06:36:45,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2318. [2024-12-02 06:36:45,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1806 states have (on average 1.3399778516057586) internal successors, (2420), 1798 states have internal predecessors, (2420), 339 states have call successors, (339), 149 states have call predecessors, (339), 172 states have return successors, (396), 370 states have call predecessors, (396), 338 states have call successors, (396) [2024-12-02 06:36:45,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3155 transitions. [2024-12-02 06:36:45,763 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3155 transitions. Word has length 126 [2024-12-02 06:36:45,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:36:45,763 INFO L471 AbstractCegarLoop]: Abstraction has 2318 states and 3155 transitions. [2024-12-02 06:36:45,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 06:36:45,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3155 transitions. [2024-12-02 06:36:45,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-02 06:36:45,767 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:45,767 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:36:45,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 06:36:45,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 06:36:45,968 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:45,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:45,969 INFO L85 PathProgramCache]: Analyzing trace with hash 771528691, now seen corresponding path program 1 times [2024-12-02 06:36:45,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:45,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508334731] [2024-12-02 06:36:45,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:45,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-12-02 06:36:46,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:46,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508334731] [2024-12-02 06:36:46,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508334731] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:36:46,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649482326] [2024-12-02 06:36:46,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:36:46,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:36:46,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:36:46,596 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:36:46,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:36:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:36:47,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 06:36:47,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:36:47,886 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-02 06:36:47,886 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:36:48,127 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-12-02 06:36:48,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649482326] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:36:48,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:36:48,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 11 [2024-12-02 06:36:48,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723414759] [2024-12-02 06:36:48,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:36:48,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 06:36:48,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:36:48,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 06:36:48,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:36:48,129 INFO L87 Difference]: Start difference. First operand 2318 states and 3155 transitions. Second operand has 11 states, 11 states have (on average 15.909090909090908) internal successors, (175), 11 states have internal predecessors, (175), 2 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-12-02 06:36:48,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:36:48,286 INFO L93 Difference]: Finished difference Result 4623 states and 6299 transitions. [2024-12-02 06:36:48,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 06:36:48,287 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.909090909090908) internal successors, (175), 11 states have internal predecessors, (175), 2 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 176 [2024-12-02 06:36:48,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:36:48,298 INFO L225 Difference]: With dead ends: 4623 [2024-12-02 06:36:48,298 INFO L226 Difference]: Without dead ends: 2322 [2024-12-02 06:36:48,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:36:48,303 INFO L435 NwaCegarLoop]: 446 mSDtfsCounter, 0 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:36:48,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2672 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:36:48,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2322 states. [2024-12-02 06:36:48,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2322 to 2322. [2024-12-02 06:36:48,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2322 states, 1810 states have (on average 1.3392265193370165) internal successors, (2424), 1802 states have internal predecessors, (2424), 339 states have call successors, (339), 149 states have call predecessors, (339), 172 states have return successors, (396), 370 states have call predecessors, (396), 338 states have call successors, (396) [2024-12-02 06:36:48,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2322 states to 2322 states and 3159 transitions. [2024-12-02 06:36:48,397 INFO L78 Accepts]: Start accepts. Automaton has 2322 states and 3159 transitions. Word has length 176 [2024-12-02 06:36:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:36:48,398 INFO L471 AbstractCegarLoop]: Abstraction has 2322 states and 3159 transitions. [2024-12-02 06:36:48,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.909090909090908) internal successors, (175), 11 states have internal predecessors, (175), 2 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-12-02 06:36:48,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2322 states and 3159 transitions. [2024-12-02 06:36:48,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 06:36:48,404 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:36:48,404 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:36:48,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:36:48,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 06:36:48,604 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:36:48,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:36:48,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2071144094, now seen corresponding path program 2 times [2024-12-02 06:36:48,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:36:48,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516977999] [2024-12-02 06:36:48,605 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:36:48,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:36:49,030 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:36:49,030 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:36:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-12-02 06:36:49,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:36:49,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516977999] [2024-12-02 06:36:49,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516977999] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:36:49,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309898346] [2024-12-02 06:36:49,490 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:36:49,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:36:49,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:36:49,492 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:36:49,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981a6e02-f2f0-4c4a-a35e-62599fd135a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process