./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.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_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/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_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/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_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/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 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:57:20,555 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:57:20,621 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 12:57:20,626 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:57:20,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:57:20,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:57:20,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:57:20,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:57:20,653 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:57:20,653 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:57:20,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:57:20,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:57:20,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:57:20,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:57:20,654 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:57:20,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:57:20,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:57:20,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:57:20,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:57:20,654 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:57:20,654 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:57:20,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:57:20,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:57:20,654 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:57:20,655 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:57:20,655 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:57:20,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:57:20,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:57:20,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:57:20,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:57:20,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:57:20,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:57:20,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:57:20,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:57:20,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:57:20,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:57:20,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:57:20,656 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:57:20,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:57:20,656 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:57:20,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:57:20,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:57:20,656 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:57:20,656 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:57:20,656 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:57:20,657 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_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/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 -> 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a [2024-12-02 12:57:20,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:57:20,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:57:20,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:57:20,940 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:57:20,940 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:57:20,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-12-02 12:57:23,761 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/data/1884c11a8/0a36e623721d4555b2923bcd82bfc896/FLAG37399e31c [2024-12-02 12:57:24,082 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:57:24,083 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-12-02 12:57:24,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/data/1884c11a8/0a36e623721d4555b2923bcd82bfc896/FLAG37399e31c [2024-12-02 12:57:24,117 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/data/1884c11a8/0a36e623721d4555b2923bcd82bfc896 [2024-12-02 12:57:24,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:57:24,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:57:24,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:57:24,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:57:24,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:57:24,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:24,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0c0091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24, skipping insertion in model container [2024-12-02 12:57:24,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:24,172 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:57:24,672 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_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2024-12-02 12:57:24,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:57:24,735 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:57:24,907 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_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2024-12-02 12:57:24,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:57:24,956 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:57:24,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24 WrapperNode [2024-12-02 12:57:24,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:57:24,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:57:24,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:57:24,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:57:24,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:24,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:25,041 INFO L138 Inliner]: procedures = 78, calls = 266, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 1017 [2024-12-02 12:57:25,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:57:25,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:57:25,042 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:57:25,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:57:25,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:25,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:25,062 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:25,120 INFO L175 MemorySlicer]: Split 160 memory accesses to 6 slices as follows [2, 82, 6, 8, 42, 20]. 51 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 6, 6, 8, 0, 1]. The 103 writes are split as follows [0, 42, 0, 0, 42, 19]. [2024-12-02 12:57:25,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:25,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:25,152 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:25,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:25,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:25,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:25,174 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:25,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:57:25,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:57:25,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:57:25,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:57:25,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (1/1) ... [2024-12-02 12:57:25,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:57:25,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:57:25,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:57:25,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:57:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_init [2024-12-02 12:57:25,249 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_init [2024-12-02 12:57:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:57:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-12-02 12:57:25,249 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-12-02 12:57:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 12:57:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 12:57:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 12:57:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 12:57:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 12:57:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 12:57:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 12:57:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 12:57:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 12:57:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 12:57:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 12:57:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 12:57:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-12-02 12:57:25,250 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-12-02 12:57:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_exit [2024-12-02 12:57:25,250 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_exit [2024-12-02 12:57:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 12:57:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 12:57:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 12:57:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 12:57:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 12:57:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 12:57:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-12-02 12:57:25,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-12-02 12:57:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:57:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:57:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:57:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 12:57:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 12:57:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 12:57:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 12:57:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 12:57:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 12:57:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 12:57:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 12:57:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 12:57:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-12-02 12:57:25,252 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-12-02 12:57:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 12:57:25,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 12:57:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-12-02 12:57:25,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-12-02 12:57:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:57:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-12-02 12:57:25,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-12-02 12:57:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 12:57:25,253 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 12:57:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 12:57:25,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 12:57:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:57:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:57:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:57:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 12:57:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 12:57:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 12:57:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-12-02 12:57:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-12-02 12:57:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2024-12-02 12:57:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2024-12-02 12:57:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-12-02 12:57:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-12-02 12:57:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2024-12-02 12:57:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2024-12-02 12:57:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:57:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:57:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:57:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 12:57:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 12:57:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 12:57:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 12:57:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:57:25,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:57:25,515 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:57:25,517 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:57:25,706 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2024-12-02 12:57:25,717 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 12:57:30,845 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2024-12-02 12:57:30,846 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2024-12-02 12:57:30,918 INFO L? ?]: Removed 279 outVars from TransFormulas that were not future-live. [2024-12-02 12:57:30,918 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:57:30,931 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:57:30,931 INFO L312 CfgBuilder]: Removed 11 assume(true) statements. [2024-12-02 12:57:30,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:57:30 BoogieIcfgContainer [2024-12-02 12:57:30,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:57:30,934 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:57:30,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:57:30,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:57:30,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:57:24" (1/3) ... [2024-12-02 12:57:30,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8399a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:57:30, skipping insertion in model container [2024-12-02 12:57:30,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:57:24" (2/3) ... [2024-12-02 12:57:30,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8399a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:57:30, skipping insertion in model container [2024-12-02 12:57:30,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:57:30" (3/3) ... [2024-12-02 12:57:30,942 INFO L128 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-12-02 12:57:30,958 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:57:30,959 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i that has 16 procedures, 202 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-12-02 12:57:31,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:57:31,033 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;@2f49abe9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:57:31,033 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:57:31,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 157 states have (on average 1.356687898089172) internal successors, (213), 163 states have internal predecessors, (213), 30 states have call successors, (30), 15 states have call predecessors, (30), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 12:57:31,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-02 12:57:31,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:57:31,046 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:57:31,046 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:57:31,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:57:31,051 INFO L85 PathProgramCache]: Analyzing trace with hash -699315634, now seen corresponding path program 1 times [2024-12-02 12:57:31,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:57:31,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022618263] [2024-12-02 12:57:31,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:57:31,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:57:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:57:32,839 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 12:57:32,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:57:32,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022618263] [2024-12-02 12:57:32,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022618263] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:57:32,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:57:32,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:57:32,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786114298] [2024-12-02 12:57:32,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:57:32,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:57:32,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:57:32,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:57:32,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:57:32,860 INFO L87 Difference]: Start difference. First operand has 201 states, 157 states have (on average 1.356687898089172) internal successors, (213), 163 states have internal predecessors, (213), 30 states have call successors, (30), 15 states have call predecessors, (30), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 12:57:32,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:57:32,984 INFO L93 Difference]: Finished difference Result 551 states and 769 transitions. [2024-12-02 12:57:32,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:57:32,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-12-02 12:57:32,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:57:32,998 INFO L225 Difference]: With dead ends: 551 [2024-12-02 12:57:32,998 INFO L226 Difference]: Without dead ends: 358 [2024-12-02 12:57:33,003 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 12:57:33,006 INFO L435 NwaCegarLoop]: 319 mSDtfsCounter, 235 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:57:33,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 534 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:57:33,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-12-02 12:57:33,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 354. [2024-12-02 12:57:33,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 279 states have (on average 1.2580645161290323) internal successors, (351), 283 states have internal predecessors, (351), 50 states have call successors, (50), 25 states have call predecessors, (50), 24 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 12:57:33,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 447 transitions. [2024-12-02 12:57:33,079 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 447 transitions. Word has length 17 [2024-12-02 12:57:33,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:57:33,079 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 447 transitions. [2024-12-02 12:57:33,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 12:57:33,080 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 447 transitions. [2024-12-02 12:57:33,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-02 12:57:33,080 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:57:33,080 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:57:33,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:57:33,081 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:57:33,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:57:33,081 INFO L85 PathProgramCache]: Analyzing trace with hash -204055180, now seen corresponding path program 1 times [2024-12-02 12:57:33,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:57:33,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809642078] [2024-12-02 12:57:33,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:57:33,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:57:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:57:34,513 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 12:57:34,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:57:34,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809642078] [2024-12-02 12:57:34,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809642078] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:57:34,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:57:34,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:57:34,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512754444] [2024-12-02 12:57:34,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:57:34,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:57:34,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:57:34,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:57:34,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:57:34,517 INFO L87 Difference]: Start difference. First operand 354 states and 447 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 12:57:34,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:57:34,589 INFO L93 Difference]: Finished difference Result 1023 states and 1302 transitions. [2024-12-02 12:57:34,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:57:34,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-12-02 12:57:34,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:57:34,594 INFO L225 Difference]: With dead ends: 1023 [2024-12-02 12:57:34,594 INFO L226 Difference]: Without dead ends: 679 [2024-12-02 12:57:34,596 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 12:57:34,597 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 225 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:57:34,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 546 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:57:34,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-12-02 12:57:34,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 672. [2024-12-02 12:57:34,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 533 states have (on average 1.2551594746716699) internal successors, (669), 536 states have internal predecessors, (669), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-12-02 12:57:34,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 851 transitions. [2024-12-02 12:57:34,645 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 851 transitions. Word has length 18 [2024-12-02 12:57:34,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:57:34,645 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 851 transitions. [2024-12-02 12:57:34,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 12:57:34,646 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 851 transitions. [2024-12-02 12:57:34,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 12:57:34,647 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:57:34,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:57:34,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:57:34,647 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:57:34,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:57:34,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1993488230, now seen corresponding path program 1 times [2024-12-02 12:57:34,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:57:34,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681570632] [2024-12-02 12:57:34,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:57:34,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:57:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:57:36,396 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 12:57:36,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:57:36,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681570632] [2024-12-02 12:57:36,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681570632] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:57:36,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:57:36,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:57:36,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141193606] [2024-12-02 12:57:36,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:57:36,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:57:36,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:57:36,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:57:36,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:57:36,399 INFO L87 Difference]: Start difference. First operand 672 states and 851 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 12:57:36,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:57:36,496 INFO L93 Difference]: Finished difference Result 1331 states and 1688 transitions. [2024-12-02 12:57:36,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:57:36,497 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-12-02 12:57:36,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:57:36,502 INFO L225 Difference]: With dead ends: 1331 [2024-12-02 12:57:36,502 INFO L226 Difference]: Without dead ends: 672 [2024-12-02 12:57:36,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:57:36,504 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 0 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:57:36,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1168 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:57:36,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-12-02 12:57:36,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2024-12-02 12:57:36,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 533 states have (on average 1.25328330206379) internal successors, (668), 536 states have internal predecessors, (668), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-12-02 12:57:36,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 850 transitions. [2024-12-02 12:57:36,533 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 850 transitions. Word has length 49 [2024-12-02 12:57:36,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:57:36,533 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 850 transitions. [2024-12-02 12:57:36,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 12:57:36,533 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 850 transitions. [2024-12-02 12:57:36,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-12-02 12:57:36,534 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:57:36,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:57:36,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:57:36,535 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:57:36,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:57:36,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1393910753, now seen corresponding path program 1 times [2024-12-02 12:57:36,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:57:36,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793332466] [2024-12-02 12:57:36,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:57:36,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:57:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:57:37,785 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 12:57:37,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:57:37,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793332466] [2024-12-02 12:57:37,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793332466] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:57:37,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:57:37,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:57:37,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919988046] [2024-12-02 12:57:37,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:57:37,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:57:37,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:57:37,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:57:37,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:57:37,788 INFO L87 Difference]: Start difference. First operand 672 states and 850 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:57:37,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:57:37,867 INFO L93 Difference]: Finished difference Result 1370 states and 1753 transitions. [2024-12-02 12:57:37,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:57:37,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2024-12-02 12:57:37,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:57:37,873 INFO L225 Difference]: With dead ends: 1370 [2024-12-02 12:57:37,873 INFO L226 Difference]: Without dead ends: 715 [2024-12-02 12:57:37,875 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 12:57:37,875 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 105 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:57:37,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 351 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:57:37,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-12-02 12:57:37,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 703. [2024-12-02 12:57:37,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 564 states have (on average 1.2588652482269505) internal successors, (710), 567 states have internal predecessors, (710), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-12-02 12:57:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 892 transitions. [2024-12-02 12:57:37,916 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 892 transitions. Word has length 54 [2024-12-02 12:57:37,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:57:37,916 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 892 transitions. [2024-12-02 12:57:37,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:57:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 892 transitions. [2024-12-02 12:57:37,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 12:57:37,920 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:57:37,920 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:57:37,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:57:37,920 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:57:37,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:57:37,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1980657502, now seen corresponding path program 1 times [2024-12-02 12:57:37,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:57:37,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768885848] [2024-12-02 12:57:37,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:57:37,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:57:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:57:40,033 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 12:57:40,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:57:40,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768885848] [2024-12-02 12:57:40,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768885848] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:57:40,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54339206] [2024-12-02 12:57:40,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:57:40,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:57:40,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:57:40,036 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:57:40,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:57:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:57:41,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 12:57:41,863 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:57:42,019 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-02 12:57:42,020 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:57:42,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54339206] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:57:42,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:57:42,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-12-02 12:57:42,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146074330] [2024-12-02 12:57:42,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:57:42,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:57:42,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:57:42,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:57:42,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:57:42,022 INFO L87 Difference]: Start difference. First operand 703 states and 892 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 12:57:42,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:57:42,099 INFO L93 Difference]: Finished difference Result 1152 states and 1459 transitions. [2024-12-02 12:57:42,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:57:42,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 91 [2024-12-02 12:57:42,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:57:42,104 INFO L225 Difference]: With dead ends: 1152 [2024-12-02 12:57:42,104 INFO L226 Difference]: Without dead ends: 467 [2024-12-02 12:57:42,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:57:42,106 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:57:42,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 696 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:57:42,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-12-02 12:57:42,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2024-12-02 12:57:42,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 370 states have (on average 1.2432432432432432) internal successors, (460), 373 states have internal predecessors, (460), 63 states have call successors, (63), 34 states have call predecessors, (63), 33 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-12-02 12:57:42,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 582 transitions. [2024-12-02 12:57:42,132 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 582 transitions. Word has length 91 [2024-12-02 12:57:42,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:57:42,133 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 582 transitions. [2024-12-02 12:57:42,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 12:57:42,133 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 582 transitions. [2024-12-02 12:57:42,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:57:42,135 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:57:42,135 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:57:42,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:57:42,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:57:42,336 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:57:42,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:57:42,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1910262912, now seen corresponding path program 1 times [2024-12-02 12:57:42,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:57:42,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166331864] [2024-12-02 12:57:42,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:57:42,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:57:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:57:44,543 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:57:44,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:57:44,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166331864] [2024-12-02 12:57:44,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166331864] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:57:44,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552055693] [2024-12-02 12:57:44,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:57:44,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:57:44,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:57:44,546 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:57:44,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:57:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:57:46,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 1617 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 12:57:46,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:57:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 12:57:46,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:57:46,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552055693] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:57:46,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:57:46,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 12 [2024-12-02 12:57:46,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66034094] [2024-12-02 12:57:46,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:57:46,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:57:46,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:57:46,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:57:46,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:57:46,529 INFO L87 Difference]: Start difference. First operand 467 states and 582 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 12:57:46,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:57:46,823 INFO L93 Difference]: Finished difference Result 952 states and 1197 transitions. [2024-12-02 12:57:46,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:57:46,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2024-12-02 12:57:46,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:57:46,830 INFO L225 Difference]: With dead ends: 952 [2024-12-02 12:57:46,830 INFO L226 Difference]: Without dead ends: 503 [2024-12-02 12:57:46,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:57:46,832 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 2 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:57:46,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2044 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:57:46,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-12-02 12:57:46,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 500. [2024-12-02 12:57:46,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 397 states have (on average 1.234256926952141) internal successors, (490), 400 states have internal predecessors, (490), 63 states have call successors, (63), 34 states have call predecessors, (63), 39 states have return successors, (74), 65 states have call predecessors, (74), 59 states have call successors, (74) [2024-12-02 12:57:46,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 627 transitions. [2024-12-02 12:57:46,862 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 627 transitions. Word has length 90 [2024-12-02 12:57:46,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:57:46,863 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 627 transitions. [2024-12-02 12:57:46,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 12:57:46,863 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 627 transitions. [2024-12-02 12:57:46,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:57:46,865 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:57:46,865 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:57:46,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:57:47,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:57:47,066 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:57:47,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:57:47,067 INFO L85 PathProgramCache]: Analyzing trace with hash 683963905, now seen corresponding path program 1 times [2024-12-02 12:57:47,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:57:47,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421637867] [2024-12-02 12:57:47,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:57:47,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:57:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:57:49,211 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:57:49,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:57:49,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421637867] [2024-12-02 12:57:49,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421637867] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:57:49,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970122291] [2024-12-02 12:57:49,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:57:49,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:57:49,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:57:49,217 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:57:49,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:57:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:57:50,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 1626 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 12:57:50,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:57:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 12:57:51,101 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:57:51,528 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:57:51,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970122291] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:57:51,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:57:51,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2024-12-02 12:57:51,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293744379] [2024-12-02 12:57:51,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:57:51,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:57:51,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:57:51,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:57:51,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:57:51,530 INFO L87 Difference]: Start difference. First operand 500 states and 627 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 12:57:51,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:57:51,834 INFO L93 Difference]: Finished difference Result 1021 states and 1290 transitions. [2024-12-02 12:57:51,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:57:51,834 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 90 [2024-12-02 12:57:51,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:57:51,838 INFO L225 Difference]: With dead ends: 1021 [2024-12-02 12:57:51,838 INFO L226 Difference]: Without dead ends: 539 [2024-12-02 12:57:51,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:57:51,840 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 3 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:57:51,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1853 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:57:51,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-12-02 12:57:51,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 515. [2024-12-02 12:57:51,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 409 states have (on average 1.2273838630806846) internal successors, (502), 409 states have internal predecessors, (502), 66 states have call successors, (66), 34 states have call predecessors, (66), 39 states have return successors, (80), 71 states have call predecessors, (80), 62 states have call successors, (80) [2024-12-02 12:57:51,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 648 transitions. [2024-12-02 12:57:51,868 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 648 transitions. Word has length 90 [2024-12-02 12:57:51,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:57:51,869 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 648 transitions. [2024-12-02 12:57:51,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 12:57:51,869 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 648 transitions. [2024-12-02 12:57:51,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:57:51,870 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:57:51,870 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:57:51,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:57:52,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:57:52,071 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:57:52,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:57:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash 784875872, now seen corresponding path program 2 times [2024-12-02 12:57:52,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:57:52,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688981938] [2024-12-02 12:57:52,072 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:57:52,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:57:53,082 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 12:57:53,082 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:57:53,700 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 12:57:53,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:57:53,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688981938] [2024-12-02 12:57:53,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688981938] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:57:53,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:57:53,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:57:53,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627634434] [2024-12-02 12:57:53,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:57:53,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:57:53,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:57:53,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:57:53,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:57:53,702 INFO L87 Difference]: Start difference. First operand 515 states and 648 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 12:57:53,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:57:53,788 INFO L93 Difference]: Finished difference Result 918 states and 1165 transitions. [2024-12-02 12:57:53,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:57:53,789 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 90 [2024-12-02 12:57:53,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:57:53,792 INFO L225 Difference]: With dead ends: 918 [2024-12-02 12:57:53,792 INFO L226 Difference]: Without dead ends: 530 [2024-12-02 12:57:53,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:57:53,793 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 0 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:57:53,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1391 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:57:53,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-12-02 12:57:53,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-12-02 12:57:53,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 421 states have (on average 1.2209026128266034) internal successors, (514), 418 states have internal predecessors, (514), 66 states have call successors, (66), 34 states have call predecessors, (66), 42 states have return successors, (85), 77 states have call predecessors, (85), 62 states have call successors, (85) [2024-12-02 12:57:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 665 transitions. [2024-12-02 12:57:53,812 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 665 transitions. Word has length 90 [2024-12-02 12:57:53,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:57:53,812 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 665 transitions. [2024-12-02 12:57:53,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 12:57:53,813 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 665 transitions. [2024-12-02 12:57:53,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:57:53,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:57:53,814 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:57:53,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:57:53,814 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:57:53,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:57:53,814 INFO L85 PathProgramCache]: Analyzing trace with hash 796191999, now seen corresponding path program 1 times [2024-12-02 12:57:53,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:57:53,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982208367] [2024-12-02 12:57:53,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:57:53,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:57:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:57:55,957 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 12:57:55,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:57:55,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982208367] [2024-12-02 12:57:55,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982208367] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:57:55,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:57:55,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:57:55,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374609519] [2024-12-02 12:57:55,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:57:55,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:57:55,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:57:55,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:57:55,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:57:55,959 INFO L87 Difference]: Start difference. First operand 530 states and 665 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 12:57:56,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:57:56,123 INFO L93 Difference]: Finished difference Result 928 states and 1174 transitions. [2024-12-02 12:57:56,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:57:56,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 90 [2024-12-02 12:57:56,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:57:56,128 INFO L225 Difference]: With dead ends: 928 [2024-12-02 12:57:56,128 INFO L226 Difference]: Without dead ends: 530 [2024-12-02 12:57:56,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:57:56,130 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:57:56,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1832 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:57:56,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-12-02 12:57:56,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-12-02 12:57:56,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 421 states have (on average 1.2161520190023754) internal successors, (512), 418 states have internal predecessors, (512), 66 states have call successors, (66), 34 states have call predecessors, (66), 42 states have return successors, (85), 77 states have call predecessors, (85), 62 states have call successors, (85) [2024-12-02 12:57:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 663 transitions. [2024-12-02 12:57:56,157 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 663 transitions. Word has length 90 [2024-12-02 12:57:56,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:57:56,158 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 663 transitions. [2024-12-02 12:57:56,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 12:57:56,158 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 663 transitions. [2024-12-02 12:57:56,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 12:57:56,159 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:57:56,159 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:57:56,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:57:56,160 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:57:56,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:57:56,160 INFO L85 PathProgramCache]: Analyzing trace with hash 181052609, now seen corresponding path program 1 times [2024-12-02 12:57:56,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:57:56,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497387688] [2024-12-02 12:57:56,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:57:56,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:57:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:57:57,569 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-02 12:57:57,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:57:57,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497387688] [2024-12-02 12:57:57,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497387688] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:57:57,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:57:57,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:57:57,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280950316] [2024-12-02 12:57:57,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:57:57,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:57:57,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:57:57,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:57:57,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:57:57,571 INFO L87 Difference]: Start difference. First operand 530 states and 663 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:58:01,593 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 12:58:01,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:58:01,989 INFO L93 Difference]: Finished difference Result 933 states and 1177 transitions. [2024-12-02 12:58:01,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:58:01,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 91 [2024-12-02 12:58:01,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:58:01,993 INFO L225 Difference]: With dead ends: 933 [2024-12-02 12:58:01,993 INFO L226 Difference]: Without dead ends: 930 [2024-12-02 12:58:01,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 12:58:01,994 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 304 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:58:01,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 725 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 12:58:01,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2024-12-02 12:58:02,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 902. [2024-12-02 12:58:02,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 723 states have (on average 1.2268326417704012) internal successors, (887), 716 states have internal predecessors, (887), 110 states have call successors, (110), 54 states have call predecessors, (110), 68 states have return successors, (149), 131 states have call predecessors, (149), 106 states have call successors, (149) [2024-12-02 12:58:02,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1146 transitions. [2024-12-02 12:58:02,046 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1146 transitions. Word has length 91 [2024-12-02 12:58:02,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:58:02,047 INFO L471 AbstractCegarLoop]: Abstraction has 902 states and 1146 transitions. [2024-12-02 12:58:02,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:58:02,047 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1146 transitions. [2024-12-02 12:58:02,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 12:58:02,048 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:58:02,048 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:58:02,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:58:02,049 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:58:02,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:58:02,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1126178966, now seen corresponding path program 1 times [2024-12-02 12:58:02,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:58:02,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134383659] [2024-12-02 12:58:02,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:02,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:58:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-02 12:58:03,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:58:03,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134383659] [2024-12-02 12:58:03,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134383659] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:58:03,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:58:03,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:58:03,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368526765] [2024-12-02 12:58:03,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:58:03,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:58:03,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:58:03,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:58:03,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:58:03,551 INFO L87 Difference]: Start difference. First operand 902 states and 1146 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 12:58:07,569 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 12:58:07,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:58:07,678 INFO L93 Difference]: Finished difference Result 1801 states and 2293 transitions. [2024-12-02 12:58:07,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:58:07,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 102 [2024-12-02 12:58:07,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:58:07,683 INFO L225 Difference]: With dead ends: 1801 [2024-12-02 12:58:07,683 INFO L226 Difference]: Without dead ends: 884 [2024-12-02 12:58:07,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:58:07,685 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 92 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:58:07,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 834 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 12:58:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-12-02 12:58:07,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 857. [2024-12-02 12:58:07,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 688 states have (on average 1.2209302325581395) internal successors, (840), 685 states have internal predecessors, (840), 109 states have call successors, (109), 48 states have call predecessors, (109), 59 states have return successors, (143), 123 states have call predecessors, (143), 105 states have call successors, (143) [2024-12-02 12:58:07,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1092 transitions. [2024-12-02 12:58:07,712 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1092 transitions. Word has length 102 [2024-12-02 12:58:07,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:58:07,713 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1092 transitions. [2024-12-02 12:58:07,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 12:58:07,713 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1092 transitions. [2024-12-02 12:58:07,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:58:07,714 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:58:07,714 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:58:07,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:58:07,715 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:58:07,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:58:07,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1540614679, now seen corresponding path program 1 times [2024-12-02 12:58:07,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:58:07,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034895527] [2024-12-02 12:58:07,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:07,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:58:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 12:58:09,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:58:09,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034895527] [2024-12-02 12:58:09,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034895527] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:58:09,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:58:09,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:58:09,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116108397] [2024-12-02 12:58:09,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:58:09,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:58:09,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:58:09,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:58:09,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:58:09,255 INFO L87 Difference]: Start difference. First operand 857 states and 1092 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:58:09,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:58:09,348 INFO L93 Difference]: Finished difference Result 1271 states and 1626 transitions. [2024-12-02 12:58:09,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:58:09,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-12-02 12:58:09,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:58:09,354 INFO L225 Difference]: With dead ends: 1271 [2024-12-02 12:58:09,354 INFO L226 Difference]: Without dead ends: 865 [2024-12-02 12:58:09,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:58:09,356 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:58:09,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1422 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:58:09,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-12-02 12:58:09,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-12-02 12:58:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 696 states have (on average 1.2183908045977012) internal successors, (848), 689 states have internal predecessors, (848), 109 states have call successors, (109), 48 states have call predecessors, (109), 59 states have return successors, (143), 127 states have call predecessors, (143), 105 states have call successors, (143) [2024-12-02 12:58:09,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1100 transitions. [2024-12-02 12:58:09,380 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1100 transitions. Word has length 110 [2024-12-02 12:58:09,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:58:09,380 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1100 transitions. [2024-12-02 12:58:09,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:58:09,381 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1100 transitions. [2024-12-02 12:58:09,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:58:09,382 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:58:09,382 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:58:09,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:58:09,383 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:58:09,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:58:09,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1210848918, now seen corresponding path program 1 times [2024-12-02 12:58:09,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:58:09,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202349482] [2024-12-02 12:58:09,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:09,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:58:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:11,058 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 12:58:11,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:58:11,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202349482] [2024-12-02 12:58:11,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202349482] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:58:11,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:58:11,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:58:11,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44929885] [2024-12-02 12:58:11,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:58:11,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:58:11,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:58:11,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:58:11,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:58:11,059 INFO L87 Difference]: Start difference. First operand 865 states and 1100 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 7 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:58:11,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:58:11,230 INFO L93 Difference]: Finished difference Result 917 states and 1158 transitions. [2024-12-02 12:58:11,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:58:11,231 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 7 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-12-02 12:58:11,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:58:11,236 INFO L225 Difference]: With dead ends: 917 [2024-12-02 12:58:11,236 INFO L226 Difference]: Without dead ends: 869 [2024-12-02 12:58:11,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:58:11,238 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:58:11,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1839 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:58:11,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-12-02 12:58:11,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 869. [2024-12-02 12:58:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 700 states have (on average 1.217142857142857) internal successors, (852), 693 states have internal predecessors, (852), 109 states have call successors, (109), 48 states have call predecessors, (109), 59 states have return successors, (143), 127 states have call predecessors, (143), 105 states have call successors, (143) [2024-12-02 12:58:11,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1104 transitions. [2024-12-02 12:58:11,278 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1104 transitions. Word has length 110 [2024-12-02 12:58:11,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:58:11,279 INFO L471 AbstractCegarLoop]: Abstraction has 869 states and 1104 transitions. [2024-12-02 12:58:11,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 7 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:58:11,279 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1104 transitions. [2024-12-02 12:58:11,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:58:11,281 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:58:11,281 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:58:11,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 12:58:11,281 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:58:11,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:58:11,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1216121673, now seen corresponding path program 1 times [2024-12-02 12:58:11,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:58:11,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395843664] [2024-12-02 12:58:11,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:11,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:58:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:12,671 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-02 12:58:12,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:58:12,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395843664] [2024-12-02 12:58:12,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395843664] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:58:12,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:58:12,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:58:12,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449239168] [2024-12-02 12:58:12,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:58:12,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:58:12,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:58:12,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:58:12,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:58:12,673 INFO L87 Difference]: Start difference. First operand 869 states and 1104 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:58:12,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:58:12,710 INFO L93 Difference]: Finished difference Result 1647 states and 2110 transitions. [2024-12-02 12:58:12,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:58:12,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-12-02 12:58:12,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:58:12,714 INFO L225 Difference]: With dead ends: 1647 [2024-12-02 12:58:12,715 INFO L226 Difference]: Without dead ends: 833 [2024-12-02 12:58:12,716 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 12:58:12,717 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:58:12,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 466 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:58:12,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-12-02 12:58:12,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2024-12-02 12:58:12,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 670 states have (on average 1.2119402985074628) internal successors, (812), 667 states have internal predecessors, (812), 105 states have call successors, (105), 48 states have call predecessors, (105), 57 states have return successors, (133), 117 states have call predecessors, (133), 101 states have call successors, (133) [2024-12-02 12:58:12,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1050 transitions. [2024-12-02 12:58:12,745 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1050 transitions. Word has length 111 [2024-12-02 12:58:12,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:58:12,745 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1050 transitions. [2024-12-02 12:58:12,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:58:12,746 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1050 transitions. [2024-12-02 12:58:12,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 12:58:12,747 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:58:12,747 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:58:12,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:58:12,748 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:58:12,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:58:12,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2042645348, now seen corresponding path program 1 times [2024-12-02 12:58:12,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:58:12,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921409414] [2024-12-02 12:58:12,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:12,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:58:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:14,483 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-02 12:58:14,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:58:14,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921409414] [2024-12-02 12:58:14,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921409414] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:58:14,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408025219] [2024-12-02 12:58:14,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:14,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:58:14,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:58:14,486 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:58:14,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:58:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:16,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 1760 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 12:58:16,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:58:17,106 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-02 12:58:17,106 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:58:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-02 12:58:17,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408025219] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 12:58:17,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:58:17,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 7] total 13 [2024-12-02 12:58:17,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983413599] [2024-12-02 12:58:17,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:58:17,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:58:17,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:58:17,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:58:17,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:58:17,832 INFO L87 Difference]: Start difference. First operand 833 states and 1050 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-12-02 12:58:21,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:58:23,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:58:23,191 INFO L93 Difference]: Finished difference Result 2258 states and 2841 transitions. [2024-12-02 12:58:23,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:58:23,191 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2024-12-02 12:58:23,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:58:23,198 INFO L225 Difference]: With dead ends: 2258 [2024-12-02 12:58:23,198 INFO L226 Difference]: Without dead ends: 1794 [2024-12-02 12:58:23,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:58:23,200 INFO L435 NwaCegarLoop]: 290 mSDtfsCounter, 615 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 125 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:58:23,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 893 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 376 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2024-12-02 12:58:23,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2024-12-02 12:58:23,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1679. [2024-12-02 12:58:23,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1340 states have (on average 1.2186567164179105) internal successors, (1633), 1343 states have internal predecessors, (1633), 214 states have call successors, (214), 102 states have call predecessors, (214), 124 states have return successors, (279), 233 states have call predecessors, (279), 208 states have call successors, (279) [2024-12-02 12:58:23,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2126 transitions. [2024-12-02 12:58:23,271 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2126 transitions. Word has length 113 [2024-12-02 12:58:23,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:58:23,271 INFO L471 AbstractCegarLoop]: Abstraction has 1679 states and 2126 transitions. [2024-12-02 12:58:23,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-12-02 12:58:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2126 transitions. [2024-12-02 12:58:23,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 12:58:23,273 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:58:23,273 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:58:23,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 12:58:23,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 12:58:23,474 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:58:23,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:58:23,475 INFO L85 PathProgramCache]: Analyzing trace with hash 854107953, now seen corresponding path program 1 times [2024-12-02 12:58:23,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:58:23,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160270098] [2024-12-02 12:58:23,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:23,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:58:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:25,718 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 12:58:25,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:58:25,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160270098] [2024-12-02 12:58:25,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160270098] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:58:25,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:58:25,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:58:25,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3401459] [2024-12-02 12:58:25,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:58:25,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:58:25,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:58:25,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:58:25,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:58:25,720 INFO L87 Difference]: Start difference. First operand 1679 states and 2126 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:58:25,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:58:25,780 INFO L93 Difference]: Finished difference Result 2384 states and 3015 transitions. [2024-12-02 12:58:25,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:58:25,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 136 [2024-12-02 12:58:25,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:58:25,786 INFO L225 Difference]: With dead ends: 2384 [2024-12-02 12:58:25,786 INFO L226 Difference]: Without dead ends: 909 [2024-12-02 12:58:25,789 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 12:58:25,790 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 0 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:58:25,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 693 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:58:25,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-12-02 12:58:25,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 909. [2024-12-02 12:58:25,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 724 states have (on average 1.2085635359116023) internal successors, (875), 725 states have internal predecessors, (875), 116 states have call successors, (116), 57 states have call predecessors, (116), 68 states have return successors, (149), 126 states have call predecessors, (149), 111 states have call successors, (149) [2024-12-02 12:58:25,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1140 transitions. [2024-12-02 12:58:25,836 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1140 transitions. Word has length 136 [2024-12-02 12:58:25,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:58:25,836 INFO L471 AbstractCegarLoop]: Abstraction has 909 states and 1140 transitions. [2024-12-02 12:58:25,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:58:25,836 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1140 transitions. [2024-12-02 12:58:25,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 12:58:25,838 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:58:25,838 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:58:25,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 12:58:25,838 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:58:25,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:58:25,839 INFO L85 PathProgramCache]: Analyzing trace with hash 686084400, now seen corresponding path program 1 times [2024-12-02 12:58:25,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:58:25,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294821637] [2024-12-02 12:58:25,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:25,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:58:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:27,405 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 12:58:27,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:58:27,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294821637] [2024-12-02 12:58:27,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294821637] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:58:27,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:58:27,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:58:27,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800636312] [2024-12-02 12:58:27,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:58:27,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:58:27,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:58:27,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:58:27,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:58:27,407 INFO L87 Difference]: Start difference. First operand 909 states and 1140 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:58:31,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:58:31,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:58:31,725 INFO L93 Difference]: Finished difference Result 1462 states and 1835 transitions. [2024-12-02 12:58:31,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:58:31,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 136 [2024-12-02 12:58:31,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:58:31,731 INFO L225 Difference]: With dead ends: 1462 [2024-12-02 12:58:31,731 INFO L226 Difference]: Without dead ends: 1457 [2024-12-02 12:58:31,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 12:58:31,732 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 212 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:58:31,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 654 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 12:58:31,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-12-02 12:58:31,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1421. [2024-12-02 12:58:31,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1133 states have (on average 1.2056487202118271) internal successors, (1366), 1130 states have internal predecessors, (1366), 180 states have call successors, (180), 87 states have call predecessors, (180), 107 states have return successors, (245), 203 states have call predecessors, (245), 175 states have call successors, (245) [2024-12-02 12:58:31,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 1791 transitions. [2024-12-02 12:58:31,776 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 1791 transitions. Word has length 136 [2024-12-02 12:58:31,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:58:31,776 INFO L471 AbstractCegarLoop]: Abstraction has 1421 states and 1791 transitions. [2024-12-02 12:58:31,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:58:31,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 1791 transitions. [2024-12-02 12:58:31,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 12:58:31,778 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:58:31,778 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:58:31,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 12:58:31,778 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:58:31,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:58:31,779 INFO L85 PathProgramCache]: Analyzing trace with hash 572060484, now seen corresponding path program 1 times [2024-12-02 12:58:31,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:58:31,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157813023] [2024-12-02 12:58:31,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:31,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:58:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:33,148 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 12:58:33,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:58:33,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157813023] [2024-12-02 12:58:33,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157813023] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:58:33,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:58:33,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:58:33,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517991864] [2024-12-02 12:58:33,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:58:33,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:58:33,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:58:33,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:58:33,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:58:33,150 INFO L87 Difference]: Start difference. First operand 1421 states and 1791 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 12:58:33,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:58:33,240 INFO L93 Difference]: Finished difference Result 1465 states and 1837 transitions. [2024-12-02 12:58:33,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:58:33,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 150 [2024-12-02 12:58:33,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:58:33,247 INFO L225 Difference]: With dead ends: 1465 [2024-12-02 12:58:33,247 INFO L226 Difference]: Without dead ends: 1446 [2024-12-02 12:58:33,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:58:33,248 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 230 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:58:33,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 505 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:58:33,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2024-12-02 12:58:33,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1427. [2024-12-02 12:58:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1139 states have (on average 1.2010535557506585) internal successors, (1368), 1136 states have internal predecessors, (1368), 180 states have call successors, (180), 87 states have call predecessors, (180), 107 states have return successors, (245), 203 states have call predecessors, (245), 175 states have call successors, (245) [2024-12-02 12:58:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1793 transitions. [2024-12-02 12:58:33,295 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1793 transitions. Word has length 150 [2024-12-02 12:58:33,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:58:33,295 INFO L471 AbstractCegarLoop]: Abstraction has 1427 states and 1793 transitions. [2024-12-02 12:58:33,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 12:58:33,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1793 transitions. [2024-12-02 12:58:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 12:58:33,297 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:58:33,297 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:58:33,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 12:58:33,298 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:58:33,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:58:33,298 INFO L85 PathProgramCache]: Analyzing trace with hash -984997408, now seen corresponding path program 1 times [2024-12-02 12:58:33,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:58:33,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487681358] [2024-12-02 12:58:33,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:33,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:58:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:34,718 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 12:58:34,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:58:34,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487681358] [2024-12-02 12:58:34,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487681358] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:58:34,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796169383] [2024-12-02 12:58:34,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:34,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:58:34,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:58:34,721 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:58:34,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 12:58:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:36,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 2370 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:58:36,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:58:37,242 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 12:58:37,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:58:37,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796169383] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:58:37,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:58:37,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-12-02 12:58:37,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275396783] [2024-12-02 12:58:37,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:58:37,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:58:37,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:58:37,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:58:37,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:58:37,244 INFO L87 Difference]: Start difference. First operand 1427 states and 1793 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 12:58:37,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:58:37,381 INFO L93 Difference]: Finished difference Result 1956 states and 2450 transitions. [2024-12-02 12:58:37,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:58:37,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 153 [2024-12-02 12:58:37,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:58:37,387 INFO L225 Difference]: With dead ends: 1956 [2024-12-02 12:58:37,387 INFO L226 Difference]: Without dead ends: 717 [2024-12-02 12:58:37,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:58:37,389 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 68 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:58:37,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 444 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:58:37,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-12-02 12:58:37,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 711. [2024-12-02 12:58:37,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 564 states have (on average 1.1861702127659575) internal successors, (669), 565 states have internal predecessors, (669), 89 states have call successors, (89), 50 states have call predecessors, (89), 57 states have return successors, (110), 95 states have call predecessors, (110), 85 states have call successors, (110) [2024-12-02 12:58:37,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 868 transitions. [2024-12-02 12:58:37,413 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 868 transitions. Word has length 153 [2024-12-02 12:58:37,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:58:37,413 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 868 transitions. [2024-12-02 12:58:37,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 12:58:37,413 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 868 transitions. [2024-12-02 12:58:37,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 12:58:37,415 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:58:37,415 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:58:37,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 12:58:37,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:58:37,616 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:58:37,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:58:37,616 INFO L85 PathProgramCache]: Analyzing trace with hash 2055193825, now seen corresponding path program 1 times [2024-12-02 12:58:37,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:58:37,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208691524] [2024-12-02 12:58:37,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:37,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:58:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:39,106 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 12:58:39,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:58:39,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208691524] [2024-12-02 12:58:39,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208691524] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:58:39,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:58:39,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:58:39,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522153408] [2024-12-02 12:58:39,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:58:39,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:58:39,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:58:39,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:58:39,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:58:39,108 INFO L87 Difference]: Start difference. First operand 711 states and 868 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 12:58:39,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:58:39,130 INFO L93 Difference]: Finished difference Result 983 states and 1202 transitions. [2024-12-02 12:58:39,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:58:39,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 165 [2024-12-02 12:58:39,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:58:39,134 INFO L225 Difference]: With dead ends: 983 [2024-12-02 12:58:39,134 INFO L226 Difference]: Without dead ends: 453 [2024-12-02 12:58:39,135 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 12:58:39,135 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:58:39,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 458 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:58:39,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-12-02 12:58:39,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2024-12-02 12:58:39,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 360 states have (on average 1.175) internal successors, (423), 361 states have internal predecessors, (423), 57 states have call successors, (57), 33 states have call predecessors, (57), 35 states have return successors, (63), 58 states have call predecessors, (63), 53 states have call successors, (63) [2024-12-02 12:58:39,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 543 transitions. [2024-12-02 12:58:39,159 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 543 transitions. Word has length 165 [2024-12-02 12:58:39,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:58:39,160 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 543 transitions. [2024-12-02 12:58:39,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 12:58:39,160 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 543 transitions. [2024-12-02 12:58:39,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 12:58:39,161 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:58:39,162 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:58:39,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 12:58:39,162 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:58:39,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:58:39,162 INFO L85 PathProgramCache]: Analyzing trace with hash 791184156, now seen corresponding path program 1 times [2024-12-02 12:58:39,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:58:39,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68763865] [2024-12-02 12:58:39,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:39,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:58:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:40,599 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 12:58:40,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:58:40,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68763865] [2024-12-02 12:58:40,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68763865] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:58:40,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940683400] [2024-12-02 12:58:40,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:40,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:58:40,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:58:40,602 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:58:40,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 12:58:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:42,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 2405 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 12:58:42,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:58:43,939 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 12:58:43,939 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:58:43,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940683400] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:58:43,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:58:43,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 10 [2024-12-02 12:58:43,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563317370] [2024-12-02 12:58:43,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:58:43,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:58:43,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:58:43,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:58:43,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:58:43,941 INFO L87 Difference]: Start difference. First operand 453 states and 543 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 12:58:47,958 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 12:58:51,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:58:56,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:58:56,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:58:56,987 INFO L93 Difference]: Finished difference Result 465 states and 552 transitions. [2024-12-02 12:58:56,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:58:56,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 167 [2024-12-02 12:58:56,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:58:56,989 INFO L225 Difference]: With dead ends: 465 [2024-12-02 12:58:56,989 INFO L226 Difference]: Without dead ends: 415 [2024-12-02 12:58:56,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:58:56,990 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 273 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 76 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:58:56,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 378 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 315 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2024-12-02 12:58:56,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-12-02 12:58:57,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 410. [2024-12-02 12:58:57,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 325 states have (on average 1.1753846153846155) internal successors, (382), 329 states have internal predecessors, (382), 52 states have call successors, (52), 32 states have call predecessors, (52), 32 states have return successors, (51), 48 states have call predecessors, (51), 48 states have call successors, (51) [2024-12-02 12:58:57,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 485 transitions. [2024-12-02 12:58:57,010 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 485 transitions. Word has length 167 [2024-12-02 12:58:57,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:58:57,011 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 485 transitions. [2024-12-02 12:58:57,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 12:58:57,011 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 485 transitions. [2024-12-02 12:58:57,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-12-02 12:58:57,013 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:58:57,013 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:57,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 12:58:57,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:58:57,213 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:58:57,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:58:57,214 INFO L85 PathProgramCache]: Analyzing trace with hash -628377753, now seen corresponding path program 1 times [2024-12-02 12:58:57,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:58:57,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614137418] [2024-12-02 12:58:57,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:57,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:58:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:58:58,585 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 12:58:58,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:58:58,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614137418] [2024-12-02 12:58:58,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614137418] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:58:58,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622864993] [2024-12-02 12:58:58,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:58:58,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:58:58,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:58:58,588 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:58:58,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 12:59:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:59:00,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 12:59:00,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:59:00,949 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 12:59:00,949 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:59:00,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622864993] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:59:00,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:59:00,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-12-02 12:59:00,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819789711] [2024-12-02 12:59:00,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:59:00,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:59:00,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:59:00,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:59:00,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:59:00,950 INFO L87 Difference]: Start difference. First operand 410 states and 485 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 12:59:04,968 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 12:59:05,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:59:05,041 INFO L93 Difference]: Finished difference Result 419 states and 492 transitions. [2024-12-02 12:59:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:59:05,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 194 [2024-12-02 12:59:05,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:59:05,045 INFO L225 Difference]: With dead ends: 419 [2024-12-02 12:59:05,045 INFO L226 Difference]: Without dead ends: 363 [2024-12-02 12:59:05,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:59:05,048 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 77 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:59:05,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 757 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 12:59:05,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-12-02 12:59:05,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 361. [2024-12-02 12:59:05,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 289 states have (on average 1.1764705882352942) internal successors, (340), 291 states have internal predecessors, (340), 43 states have call successors, (43), 28 states have call predecessors, (43), 28 states have return successors, (42), 41 states have call predecessors, (42), 40 states have call successors, (42) [2024-12-02 12:59:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 425 transitions. [2024-12-02 12:59:05,070 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 425 transitions. Word has length 194 [2024-12-02 12:59:05,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:59:05,070 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 425 transitions. [2024-12-02 12:59:05,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 12:59:05,070 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 425 transitions. [2024-12-02 12:59:05,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-12-02 12:59:05,072 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:59:05,072 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 12:59:05,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 12:59:05,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 12:59:05,273 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:59:05,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:59:05,273 INFO L85 PathProgramCache]: Analyzing trace with hash 701477126, now seen corresponding path program 1 times [2024-12-02 12:59:05,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:59:05,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171680872] [2024-12-02 12:59:05,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:59:05,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:59:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:59:06,747 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-12-02 12:59:06,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:59:06,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171680872] [2024-12-02 12:59:06,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171680872] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:59:06,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:59:06,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:59:06,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558073949] [2024-12-02 12:59:06,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:59:06,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:59:06,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:59:06,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:59:06,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:59:06,749 INFO L87 Difference]: Start difference. First operand 361 states and 425 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-12-02 12:59:10,771 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 12:59:10,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:59:10,868 INFO L93 Difference]: Finished difference Result 363 states and 426 transitions. [2024-12-02 12:59:10,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:59:10,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 266 [2024-12-02 12:59:10,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:59:10,871 INFO L225 Difference]: With dead ends: 363 [2024-12-02 12:59:10,871 INFO L226 Difference]: Without dead ends: 348 [2024-12-02 12:59:10,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:59:10,872 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 187 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:59:10,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 269 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 12:59:10,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-12-02 12:59:10,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 342. [2024-12-02 12:59:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 275 states have (on average 1.1745454545454546) internal successors, (323), 277 states have internal predecessors, (323), 40 states have call successors, (40), 27 states have call predecessors, (40), 26 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 12:59:10,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 401 transitions. [2024-12-02 12:59:10,893 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 401 transitions. Word has length 266 [2024-12-02 12:59:10,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:59:10,893 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 401 transitions. [2024-12-02 12:59:10,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-12-02 12:59:10,894 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 401 transitions. [2024-12-02 12:59:10,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-12-02 12:59:10,896 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:59:10,896 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:59:10,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 12:59:10,896 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:59:10,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:59:10,897 INFO L85 PathProgramCache]: Analyzing trace with hash -975408885, now seen corresponding path program 1 times [2024-12-02 12:59:10,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:59:10,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543949824] [2024-12-02 12:59:10,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:59:10,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:59:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:59:12,439 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-12-02 12:59:12,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:59:12,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543949824] [2024-12-02 12:59:12,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543949824] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:59:12,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:59:12,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:59:12,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415510983] [2024-12-02 12:59:12,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:59:12,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:59:12,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:59:12,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:59:12,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:59:12,441 INFO L87 Difference]: Start difference. First operand 342 states and 401 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 4 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-12-02 12:59:16,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:59:16,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:59:16,651 INFO L93 Difference]: Finished difference Result 342 states and 401 transitions. [2024-12-02 12:59:16,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:59:16,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 4 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 311 [2024-12-02 12:59:16,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:59:16,653 INFO L225 Difference]: With dead ends: 342 [2024-12-02 12:59:16,653 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 12:59:16,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:59:16,654 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 198 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:59:16,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 267 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 12:59:16,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 12:59:16,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 12:59:16,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:59:16,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 12:59:16,655 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 311 [2024-12-02 12:59:16,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:59:16,655 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 12:59:16,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 4 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-12-02 12:59:16,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 12:59:16,656 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 12:59:16,657 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 12:59:16,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 12:59:16,660 INFO L422 BasicCegarLoop]: Path program histogram: [2, 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 12:59:16,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 12:59:21,985 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 12:59:22,001 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_s_kbtab_driver_usb_driver~0 [2024-12-02 12:59:22,002 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~error~0 [2024-12-02 12:59:22,002 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_s_kbtab_driver_usb_driver~0 [2024-12-02 12:59:22,002 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~error~0 [2024-12-02 12:59:22,003 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_s_kbtab_driver_usb_driver~0 [2024-12-02 12:59:22,003 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~error~0 [2024-12-02 12:59:22,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:59:22 BoogieIcfgContainer [2024-12-02 12:59:22,004 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 12:59:22,005 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 12:59:22,005 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 12:59:22,005 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 12:59:22,006 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:57:30" (3/4) ... [2024-12-02 12:59:22,009 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 12:59:22,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kbtab_init [2024-12-02 12:59:22,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure dev_get_drvdata [2024-12-02 12:59:22,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2024-12-02 12:59:22,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_set_intfdata [2024-12-02 12:59:22,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undefined_pointer [2024-12-02 12:59:22,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-12-02 12:59:22,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_free_urb [2024-12-02 12:59:22,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure input_set_abs_params [2024-12-02 12:59:22,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kbtab_exit [2024-12-02 12:59:22,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-12-02 12:59:22,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2024-12-02 12:59:22,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_assume_stop [2024-12-02 12:59:22,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_free_coherent [2024-12-02 12:59:22,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_blast_assert [2024-12-02 12:59:22,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure dev_set_drvdata [2024-12-02 12:59:22,030 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2024-12-02 12:59:22,032 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-12-02 12:59:22,033 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-12-02 12:59:22,035 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 12:59:22,036 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 12:59:22,038 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 12:59:22,074 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= \old(ldv_coherent_state)) && (ldv_urb_state == 0)) && (ldv_coherent_state == 1)) && (\old(ldv_coherent_state) <= 1)) [2024-12-02 12:59:22,075 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\old(ldv_urb_state) <= 1) && (1 <= ldv_coherent_state)) && (0 == res_kbtab_probe_3)) && (1 <= \old(ldv_urb_state))) && (ldv_urb_state == 1)) && (ldv_coherent_state <= 1)) [2024-12-02 12:59:22,226 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= \old(ldv_coherent_state)) && (ldv_urb_state == 0)) && (ldv_coherent_state == 1)) && (\old(ldv_coherent_state) <= 1)) [2024-12-02 12:59:22,227 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\old(ldv_urb_state) <= 1) && (1 <= ldv_coherent_state)) && (0 == res_kbtab_probe_3)) && (1 <= \old(ldv_urb_state))) && (ldv_urb_state == 1)) && (ldv_coherent_state <= 1)) [2024-12-02 12:59:22,285 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 12:59:22,286 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 12:59:22,286 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 12:59:22,287 INFO L158 Benchmark]: Toolchain (without parser) took 118165.97ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 111.9MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 778.3MB. Max. memory is 16.1GB. [2024-12-02 12:59:22,287 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 82.8MB in the end (delta: 31.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:59:22,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 834.81ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 92.6MB in the end (delta: 19.3MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2024-12-02 12:59:22,288 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.34ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 86.3MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:59:22,288 INFO L158 Benchmark]: Boogie Preprocessor took 143.84ms. Allocated memory is still 142.6MB. Free memory was 86.3MB in the beginning and 70.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:59:22,288 INFO L158 Benchmark]: RCFGBuilder took 5744.83ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 70.1MB in the beginning and 170.7MB in the end (delta: -100.6MB). Peak memory consumption was 75.9MB. Max. memory is 16.1GB. [2024-12-02 12:59:22,288 INFO L158 Benchmark]: TraceAbstraction took 111069.99ms. Allocated memory was 310.4MB in the beginning and 1.3GB in the end (delta: 947.9MB). Free memory was 169.9MB in the beginning and 466.4MB in the end (delta: -296.5MB). Peak memory consumption was 659.0MB. Max. memory is 16.1GB. [2024-12-02 12:59:22,289 INFO L158 Benchmark]: Witness Printer took 280.94ms. Allocated memory was 1.3GB in the beginning and 1.5GB in the end (delta: 251.7MB). Free memory was 466.4MB in the beginning and 1.4GB in the end (delta: -962.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:59:22,290 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 82.8MB in the end (delta: 31.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 834.81ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 92.6MB in the end (delta: 19.3MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.34ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 86.3MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 143.84ms. Allocated memory is still 142.6MB. Free memory was 86.3MB in the beginning and 70.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 5744.83ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 70.1MB in the beginning and 170.7MB in the end (delta: -100.6MB). Peak memory consumption was 75.9MB. Max. memory is 16.1GB. * TraceAbstraction took 111069.99ms. Allocated memory was 310.4MB in the beginning and 1.3GB in the end (delta: 947.9MB). Free memory was 169.9MB in the beginning and 466.4MB in the end (delta: -296.5MB). Peak memory consumption was 659.0MB. Max. memory is 16.1GB. * Witness Printer took 280.94ms. Allocated memory was 1.3GB in the beginning and 1.5GB in the end (delta: 251.7MB). Free memory was 466.4MB in the beginning and 1.4GB in the end (delta: -962.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_s_kbtab_driver_usb_driver~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~error~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_s_kbtab_driver_usb_driver~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~error~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_s_kbtab_driver_usb_driver~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~error~0 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 4049]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 202 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 105.7s, OverallIterations: 24, TraceHistogramMax: 9, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 45.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 2875 SdHoareTripleChecker+Valid, 44.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2826 mSDsluCounter, 21019 SdHoareTripleChecker+Invalid, 43.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15158 mSDsCounter, 240 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1348 IncrementalHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 240 mSolverCounterUnsat, 5861 mSDtfsCounter, 1348 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1231 GetRequests, 1120 SyntacticMatches, 2 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1679occurred in iteration=15, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 24 MinimizatonAttempts, 294 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 3802 NumberOfCodeBlocks, 3772 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 3972 ConstructedInterpolants, 0 QuantifiedInterpolants, 6306 SizeOfPredicates, 4 NumberOfNonLiveVariables, 14003 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 33 InterpolantComputations, 23 PerfectInterpolantSequences, 1583/1670 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3981]: Location Invariant Derived location invariant: (((((0 == res_kbtab_probe_3) && (1 <= ldv_s_kbtab_driver_usb_driver)) && (ldv_coherent_state == 1)) && (ldv_urb_state == 1)) || ((((ldv_coherent_state == 0) && (0 == res_kbtab_probe_3)) && (ldv_urb_state == 0)) && (ldv_s_kbtab_driver_usb_driver == 0))) - InvariantResult [Line: 4156]: Loop Invariant Derived loop invariant: ((((((\old(ldv_urb_state) <= 1) && (1 <= ldv_coherent_state)) && (0 == res_kbtab_probe_3)) && (1 <= \old(ldv_urb_state))) && (ldv_urb_state == 1)) && (ldv_coherent_state <= 1)) - InvariantResult [Line: 4073]: Loop Invariant Derived loop invariant: (((ldv_coherent_state == 0) && (0 == res_kbtab_probe_3)) && (ldv_urb_state == 0)) - InvariantResult [Line: 4130]: Loop Invariant Derived loop invariant: (((0 == res_kbtab_probe_3) && (ldv_urb_state == 0)) && (ldv_coherent_state == 1)) - InvariantResult [Line: 3454]: Loop Invariant Derived loop invariant: (((0 == res_kbtab_probe_3) && (ldv_coherent_state == 1)) && (ldv_urb_state == 1)) - InvariantResult [Line: 4099]: Loop Invariant Derived loop invariant: ((((1 <= \old(ldv_coherent_state)) && (ldv_urb_state == 0)) && (ldv_coherent_state == 1)) && (\old(ldv_coherent_state) <= 1)) - InvariantResult [Line: 3968]: Location Invariant Derived location invariant: ((ldv_coherent_state == 0) && (ldv_urb_state == 0)) RESULT: Ultimate proved your program to be correct! [2024-12-02 12:59:22,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c0ead9-7a08-4e2a-bff0-263a99bebd86/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE