./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.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_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/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_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/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_8666b27b-0712-41ed-a1aa-47a158b62a03/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 65cc93bea37c503291576929a444106bffa9d5b7b84b8d294ee7e7120b60ffa5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:53:35,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:53:35,365 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 14:53:35,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:53:35,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:53:35,391 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:53:35,392 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:53:35,392 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:53:35,392 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:53:35,392 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:53:35,393 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:53:35,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:53:35,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:53:35,393 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:53:35,393 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:53:35,393 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:53:35,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:53:35,394 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:53:35,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:53:35,394 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:53:35,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:53:35,394 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:53:35,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:53:35,394 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:53:35,394 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:53:35,394 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:53:35,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:53:35,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:53:35,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:53:35,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:53:35,395 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:53:35,395 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:53:35,395 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:53:35,395 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:53:35,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:53:35,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:53:35,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:53:35,395 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:53:35,395 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:53:35,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:53:35,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:53:35,396 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:53:35,396 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:53:35,396 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:53:35,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:53:35,396 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_8666b27b-0712-41ed-a1aa-47a158b62a03/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 -> 65cc93bea37c503291576929a444106bffa9d5b7b84b8d294ee7e7120b60ffa5 [2024-12-02 14:53:35,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:53:35,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:53:35,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:53:35,682 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:53:35,682 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:53:35,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2024-12-02 14:53:38,359 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/data/36c7ba9f7/aaf9f57ce31a4f77962e2c20f32a1c34/FLAG9b4809787 [2024-12-02 14:53:38,766 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:53:38,766 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2024-12-02 14:53:38,799 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/data/36c7ba9f7/aaf9f57ce31a4f77962e2c20f32a1c34/FLAG9b4809787 [2024-12-02 14:53:38,814 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/data/36c7ba9f7/aaf9f57ce31a4f77962e2c20f32a1c34 [2024-12-02 14:53:38,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:53:38,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:53:38,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:53:38,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:53:38,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:53:38,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:53:38" (1/1) ... [2024-12-02 14:53:38,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20fd65ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:38, skipping insertion in model container [2024-12-02 14:53:38,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:53:38" (1/1) ... [2024-12-02 14:53:38,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:53:39,749 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_8666b27b-0712-41ed-a1aa-47a158b62a03/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i[138616,138629] [2024-12-02 14:53:39,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:53:39,879 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:53:40,059 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_8666b27b-0712-41ed-a1aa-47a158b62a03/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i[138616,138629] [2024-12-02 14:53:40,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:53:40,170 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:53:40,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40 WrapperNode [2024-12-02 14:53:40,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:53:40,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:53:40,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:53:40,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:53:40,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,293 INFO L138 Inliner]: procedures = 161, calls = 1531, calls flagged for inlining = 53, calls inlined = 28, statements flattened = 1843 [2024-12-02 14:53:40,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:53:40,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:53:40,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:53:40,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:53:40,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,321 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,391 INFO L175 MemorySlicer]: Split 1089 memory accesses to 22 slices as follows [2, 11, 522, 5, 1, 18, 3, 5, 37, 3, 3, 8, 10, 10, 6, 2, 13, 325, 72, 24, 6, 3]. 48 percent of accesses are in the largest equivalence class. The 793 initializations are split as follows [2, 11, 512, 5, 0, 18, 0, 5, 28, 0, 0, 4, 10, 10, 0, 0, 13, 172, 0, 0, 0, 3]. The 195 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 6, 2, 0, 84, 72, 24, 5, 0]. [2024-12-02 14:53:40,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,446 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,485 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:53:40,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:53:40,506 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:53:40,506 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:53:40,507 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (1/1) ... [2024-12-02 14:53:40,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:53:40,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:53:40,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:53:40,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:53:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2024-12-02 14:53:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2024-12-02 14:53:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2024-12-02 14:53:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2024-12-02 14:53:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-12-02 14:53:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-12-02 14:53:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2024-12-02 14:53:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2024-12-02 14:53:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2024-12-02 14:53:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2024-12-02 14:53:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 14:53:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 14:53:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 14:53:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 14:53:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 14:53:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 14:53:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 14:53:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 14:53:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 14:53:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 14:53:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 14:53:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 14:53:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 14:53:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 14:53:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 14:53:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 14:53:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 14:53:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 14:53:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-12-02 14:53:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-12-02 14:53:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-12-02 14:53:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-12-02 14:53:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2024-12-02 14:53:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2024-12-02 14:53:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2024-12-02 14:53:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2024-12-02 14:53:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 14:53:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 14:53:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 14:53:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 14:53:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-12-02 14:53:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 14:53:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 14:53:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 14:53:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 14:53:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 14:53:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 14:53:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 14:53:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 14:53:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-12-02 14:53:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-12-02 14:53:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-12-02 14:53:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-12-02 14:53:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2024-12-02 14:53:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2024-12-02 14:53:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2024-12-02 14:53:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2024-12-02 14:53:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2024-12-02 14:53:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2024-12-02 14:53:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 14:53:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 14:53:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2024-12-02 14:53:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2024-12-02 14:53:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2024-12-02 14:53:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2024-12-02 14:53:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2024-12-02 14:53:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2024-12-02 14:53:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 14:53:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 14:53:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 14:53:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-12-02 14:53:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-12-02 14:53:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-12-02 14:53:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-12-02 14:53:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-12-02 14:53:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-12-02 14:53:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 14:53:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 14:53:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2024-12-02 14:53:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2024-12-02 14:53:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2024-12-02 14:53:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2024-12-02 14:53:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2024-12-02 14:53:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2024-12-02 14:53:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 14:53:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-12-02 14:53:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-12-02 14:53:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:53:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-12-02 14:53:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-12-02 14:53:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 14:53:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 14:53:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 14:53:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 14:53:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 14:53:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 14:53:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 14:53:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 14:53:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 14:53:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 14:53:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 14:53:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 14:53:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 14:53:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 14:53:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 14:53:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 14:53:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 14:53:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 14:53:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 14:53:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-12-02 14:53:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-12-02 14:53:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-12-02 14:53:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-12-02 14:53:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2024-12-02 14:53:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2024-12-02 14:53:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2024-12-02 14:53:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2024-12-02 14:53:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2024-12-02 14:53:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2024-12-02 14:53:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 14:53:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 14:53:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 14:53:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 14:53:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 14:53:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 14:53:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-12-02 14:53:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2024-12-02 14:53:40,602 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2024-12-02 14:53:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2024-12-02 14:53:40,602 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2024-12-02 14:53:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2024-12-02 14:53:40,602 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2024-12-02 14:53:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2024-12-02 14:53:40,602 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2024-12-02 14:53:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 14:53:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 14:53:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 14:53:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 14:53:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 14:53:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 14:53:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 14:53:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2024-12-02 14:53:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2024-12-02 14:53:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2024-12-02 14:53:40,603 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2024-12-02 14:53:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 14:53:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 14:53:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2024-12-02 14:53:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2024-12-02 14:53:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2024-12-02 14:53:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2024-12-02 14:53:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2024-12-02 14:53:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2024-12-02 14:53:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2024-12-02 14:53:40,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2024-12-02 14:53:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:53:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 14:53:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 14:53:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 14:53:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 14:53:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 14:53:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-12-02 14:53:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-12-02 14:53:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2024-12-02 14:53:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2024-12-02 14:53:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:53:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:53:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2024-12-02 14:53:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2024-12-02 14:53:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2024-12-02 14:53:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2024-12-02 14:53:41,069 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:53:41,072 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:53:49,254 INFO L? ?]: Removed 415 outVars from TransFormulas that were not future-live. [2024-12-02 14:53:49,254 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:53:49,277 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:53:49,277 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 14:53:49,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:53:49 BoogieIcfgContainer [2024-12-02 14:53:49,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:53:49,280 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:53:49,280 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:53:49,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:53:49,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:53:38" (1/3) ... [2024-12-02 14:53:49,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60451149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:53:49, skipping insertion in model container [2024-12-02 14:53:49,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:53:40" (2/3) ... [2024-12-02 14:53:49,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60451149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:53:49, skipping insertion in model container [2024-12-02 14:53:49,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:53:49" (3/3) ... [2024-12-02 14:53:49,288 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2024-12-02 14:53:49,305 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:53:49,308 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i that has 39 procedures, 579 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 14:53:49,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:53:49,397 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;@4793278f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:53:49,397 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:53:49,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 579 states, 413 states have (on average 1.3510895883777239) internal successors, (558), 427 states have internal predecessors, (558), 128 states have call successors, (128), 38 states have call predecessors, (128), 38 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2024-12-02 14:53:49,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 14:53:49,413 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:49,414 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:53:49,414 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:49,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:49,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1213140984, now seen corresponding path program 1 times [2024-12-02 14:53:49,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:53:49,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282234338] [2024-12-02 14:53:49,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:49,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:53:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:51,005 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 14:53:51,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:53:51,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282234338] [2024-12-02 14:53:51,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282234338] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:53:51,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:53:51,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:53:51,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15778139] [2024-12-02 14:53:51,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:53:51,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:53:51,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:53:51,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:53:51,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:53:51,039 INFO L87 Difference]: Start difference. First operand has 579 states, 413 states have (on average 1.3510895883777239) internal successors, (558), 427 states have internal predecessors, (558), 128 states have call successors, (128), 38 states have call predecessors, (128), 38 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:53:51,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:53:51,373 INFO L93 Difference]: Finished difference Result 1604 states and 2309 transitions. [2024-12-02 14:53:51,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:53:51,375 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-12-02 14:53:51,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:53:51,393 INFO L225 Difference]: With dead ends: 1604 [2024-12-02 14:53:51,394 INFO L226 Difference]: Without dead ends: 1020 [2024-12-02 14:53:51,402 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 14:53:51,405 INFO L435 NwaCegarLoop]: 1156 mSDtfsCounter, 626 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:53:51,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 1918 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:53:51,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-12-02 14:53:51,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1006. [2024-12-02 14:53:51,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 720 states have (on average 1.3388888888888888) internal successors, (964), 733 states have internal predecessors, (964), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (213), 213 states have call predecessors, (213), 213 states have call successors, (213) [2024-12-02 14:53:51,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1396 transitions. [2024-12-02 14:53:51,537 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1396 transitions. Word has length 16 [2024-12-02 14:53:51,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:51,537 INFO L471 AbstractCegarLoop]: Abstraction has 1006 states and 1396 transitions. [2024-12-02 14:53:51,538 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:53:51,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1396 transitions. [2024-12-02 14:53:51,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-02 14:53:51,539 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:51,539 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 14:53:51,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:53:51,539 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:51,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:51,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1899123615, now seen corresponding path program 1 times [2024-12-02 14:53:51,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:53:51,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804117792] [2024-12-02 14:53:51,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:51,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:53:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:52,728 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 14:53:52,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:53:52,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804117792] [2024-12-02 14:53:52,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804117792] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:53:52,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:53:52,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:53:52,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352791453] [2024-12-02 14:53:52,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:53:52,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:53:52,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:53:52,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:53:52,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:53:52,731 INFO L87 Difference]: Start difference. First operand 1006 states and 1396 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:53:52,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:53:52,785 INFO L93 Difference]: Finished difference Result 2009 states and 2789 transitions. [2024-12-02 14:53:52,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:53:52,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-12-02 14:53:52,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:53:52,794 INFO L225 Difference]: With dead ends: 2009 [2024-12-02 14:53:52,795 INFO L226 Difference]: Without dead ends: 1006 [2024-12-02 14:53:52,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:53:52,800 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 777 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:53:52,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 786 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:53:52,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2024-12-02 14:53:52,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 1006. [2024-12-02 14:53:52,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 720 states have (on average 1.336111111111111) internal successors, (962), 733 states have internal predecessors, (962), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (213), 213 states have call predecessors, (213), 213 states have call successors, (213) [2024-12-02 14:53:52,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1394 transitions. [2024-12-02 14:53:52,849 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1394 transitions. Word has length 18 [2024-12-02 14:53:52,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:52,849 INFO L471 AbstractCegarLoop]: Abstraction has 1006 states and 1394 transitions. [2024-12-02 14:53:52,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:53:52,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1394 transitions. [2024-12-02 14:53:52,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-02 14:53:52,850 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:52,850 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] [2024-12-02 14:53:52,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:53:52,850 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:52,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:52,851 INFO L85 PathProgramCache]: Analyzing trace with hash 203011561, now seen corresponding path program 1 times [2024-12-02 14:53:52,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:53:52,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366822766] [2024-12-02 14:53:52,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:52,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:53:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:53,843 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 14:53:53,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:53:53,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366822766] [2024-12-02 14:53:53,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366822766] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:53:53,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:53:53,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:53:53,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587769599] [2024-12-02 14:53:53,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:53:53,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:53:53,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:53:53,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:53:53,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:53:53,846 INFO L87 Difference]: Start difference. First operand 1006 states and 1394 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 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 14:53:57,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:53:58,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:53:58,146 INFO L93 Difference]: Finished difference Result 2413 states and 3334 transitions. [2024-12-02 14:53:58,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:53:58,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 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 22 [2024-12-02 14:53:58,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:53:58,160 INFO L225 Difference]: With dead ends: 2413 [2024-12-02 14:53:58,160 INFO L226 Difference]: Without dead ends: 1410 [2024-12-02 14:53:58,166 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 14:53:58,167 INFO L435 NwaCegarLoop]: 1272 mSDtfsCounter, 743 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:53:58,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1817 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 14:53:58,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-12-02 14:53:58,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1386. [2024-12-02 14:53:58,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 987 states have (on average 1.3353596757852078) internal successors, (1318), 1004 states have internal predecessors, (1318), 300 states have call successors, (300), 99 states have call predecessors, (300), 98 states have return successors, (294), 294 states have call predecessors, (294), 294 states have call successors, (294) [2024-12-02 14:53:58,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1912 transitions. [2024-12-02 14:53:58,279 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1912 transitions. Word has length 22 [2024-12-02 14:53:58,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:58,280 INFO L471 AbstractCegarLoop]: Abstraction has 1386 states and 1912 transitions. [2024-12-02 14:53:58,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 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 14:53:58,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1912 transitions. [2024-12-02 14:53:58,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 14:53:58,281 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:58,281 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] [2024-12-02 14:53:58,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:53:58,282 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:58,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:58,282 INFO L85 PathProgramCache]: Analyzing trace with hash -2031583946, now seen corresponding path program 1 times [2024-12-02 14:53:58,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:53:58,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881534781] [2024-12-02 14:53:58,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:58,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:53:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:59,383 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 14:53:59,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:53:59,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881534781] [2024-12-02 14:53:59,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881534781] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:53:59,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:53:59,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:53:59,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372563513] [2024-12-02 14:53:59,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:53:59,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:53:59,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:53:59,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:53:59,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:53:59,385 INFO L87 Difference]: Start difference. First operand 1386 states and 1912 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 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 14:53:59,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:53:59,511 INFO L93 Difference]: Finished difference Result 2787 states and 3849 transitions. [2024-12-02 14:53:59,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:53:59,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 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 30 [2024-12-02 14:53:59,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:53:59,520 INFO L225 Difference]: With dead ends: 2787 [2024-12-02 14:53:59,520 INFO L226 Difference]: Without dead ends: 1404 [2024-12-02 14:53:59,524 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 14:53:59,525 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 12 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:53:59,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1561 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:53:59,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2024-12-02 14:53:59,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1388. [2024-12-02 14:53:59,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 989 states have (on average 1.3346814964610718) internal successors, (1320), 1006 states have internal predecessors, (1320), 300 states have call successors, (300), 99 states have call predecessors, (300), 98 states have return successors, (294), 294 states have call predecessors, (294), 294 states have call successors, (294) [2024-12-02 14:53:59,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1914 transitions. [2024-12-02 14:53:59,585 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1914 transitions. Word has length 30 [2024-12-02 14:53:59,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:59,585 INFO L471 AbstractCegarLoop]: Abstraction has 1388 states and 1914 transitions. [2024-12-02 14:53:59,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 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 14:53:59,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1914 transitions. [2024-12-02 14:53:59,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-12-02 14:53:59,586 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:59,586 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] [2024-12-02 14:53:59,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:53:59,587 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:59,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:59,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1970569245, now seen corresponding path program 1 times [2024-12-02 14:53:59,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:53:59,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606358356] [2024-12-02 14:53:59,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:59,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:00,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:54:00,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:00,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606358356] [2024-12-02 14:54:00,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606358356] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:00,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066297360] [2024-12-02 14:54:00,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:00,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:00,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:00,712 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:00,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:54:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:02,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 2935 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 14:54:02,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:02,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 14:54:02,164 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:54:02,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066297360] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:02,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:54:02,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 14:54:02,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063364983] [2024-12-02 14:54:02,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:02,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:54:02,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:02,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:54:02,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:02,165 INFO L87 Difference]: Start difference. First operand 1388 states and 1914 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 14:54:02,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:02,311 INFO L93 Difference]: Finished difference Result 2811 states and 3885 transitions. [2024-12-02 14:54:02,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:02,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 34 [2024-12-02 14:54:02,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:02,323 INFO L225 Difference]: With dead ends: 2811 [2024-12-02 14:54:02,324 INFO L226 Difference]: Without dead ends: 1426 [2024-12-02 14:54:02,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:02,331 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 16 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:02,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1578 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:54:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2024-12-02 14:54:02,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1392. [2024-12-02 14:54:02,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 993 states have (on average 1.3333333333333333) internal successors, (1324), 1010 states have internal predecessors, (1324), 300 states have call successors, (300), 99 states have call predecessors, (300), 98 states have return successors, (294), 294 states have call predecessors, (294), 294 states have call successors, (294) [2024-12-02 14:54:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1918 transitions. [2024-12-02 14:54:02,421 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1918 transitions. Word has length 34 [2024-12-02 14:54:02,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:02,421 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 1918 transitions. [2024-12-02 14:54:02,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 14:54:02,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1918 transitions. [2024-12-02 14:54:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-02 14:54:02,423 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:02,423 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] [2024-12-02 14:54:02,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:54:02,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:02,624 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:02,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:02,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1299821596, now seen corresponding path program 1 times [2024-12-02 14:54:02,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:02,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313351598] [2024-12-02 14:54:02,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:02,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:03,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 14:54:03,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:03,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313351598] [2024-12-02 14:54:03,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313351598] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:03,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690556731] [2024-12-02 14:54:03,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:03,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:03,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:03,987 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:03,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:54:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:05,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:54:05,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:05,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 14:54:05,557 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:54:05,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690556731] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:05,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:54:05,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 14:54:05,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285651327] [2024-12-02 14:54:05,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:05,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:54:05,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:05,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:54:05,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:05,559 INFO L87 Difference]: Start difference. First operand 1392 states and 1918 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 14:54:05,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:05,779 INFO L93 Difference]: Finished difference Result 4118 states and 5666 transitions. [2024-12-02 14:54:05,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:05,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 38 [2024-12-02 14:54:05,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:05,800 INFO L225 Difference]: With dead ends: 4118 [2024-12-02 14:54:05,800 INFO L226 Difference]: Without dead ends: 2729 [2024-12-02 14:54:05,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:05,809 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 748 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:05,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1552 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:54:05,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2024-12-02 14:54:05,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2248. [2024-12-02 14:54:05,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2248 states, 1598 states have (on average 1.3285356695869837) internal successors, (2123), 1624 states have internal predecessors, (2123), 488 states have call successors, (488), 162 states have call predecessors, (488), 161 states have return successors, (482), 481 states have call predecessors, (482), 482 states have call successors, (482) [2024-12-02 14:54:05,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2248 states to 2248 states and 3093 transitions. [2024-12-02 14:54:05,966 INFO L78 Accepts]: Start accepts. Automaton has 2248 states and 3093 transitions. Word has length 38 [2024-12-02 14:54:05,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:05,966 INFO L471 AbstractCegarLoop]: Abstraction has 2248 states and 3093 transitions. [2024-12-02 14:54:05,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 14:54:05,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2248 states and 3093 transitions. [2024-12-02 14:54:05,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-02 14:54:05,968 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:05,968 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] [2024-12-02 14:54:05,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 14:54:06,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 14:54:06,169 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:06,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:06,169 INFO L85 PathProgramCache]: Analyzing trace with hash -507814465, now seen corresponding path program 1 times [2024-12-02 14:54:06,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:06,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439832748] [2024-12-02 14:54:06,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:06,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:54:07,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:07,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439832748] [2024-12-02 14:54:07,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439832748] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:07,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186359265] [2024-12-02 14:54:07,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:07,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:07,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:07,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:07,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:54:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:08,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 3006 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:54:08,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:08,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 14:54:08,683 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:54:08,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186359265] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:08,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:54:08,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 14:54:08,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78493953] [2024-12-02 14:54:08,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:08,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:54:08,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:08,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:54:08,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:08,685 INFO L87 Difference]: Start difference. First operand 2248 states and 3093 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 14:54:08,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:08,816 INFO L93 Difference]: Finished difference Result 4527 states and 6239 transitions. [2024-12-02 14:54:08,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:08,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2024-12-02 14:54:08,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:08,833 INFO L225 Difference]: With dead ends: 4527 [2024-12-02 14:54:08,833 INFO L226 Difference]: Without dead ends: 2282 [2024-12-02 14:54:08,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:08,844 INFO L435 NwaCegarLoop]: 784 mSDtfsCounter, 22 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:08,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1551 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:54:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2024-12-02 14:54:08,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2282. [2024-12-02 14:54:08,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 1624 states have (on average 1.3294334975369457) internal successors, (2159), 1650 states have internal predecessors, (2159), 496 states have call successors, (496), 162 states have call predecessors, (496), 161 states have return successors, (490), 489 states have call predecessors, (490), 490 states have call successors, (490) [2024-12-02 14:54:08,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 3145 transitions. [2024-12-02 14:54:08,979 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 3145 transitions. Word has length 39 [2024-12-02 14:54:08,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:08,979 INFO L471 AbstractCegarLoop]: Abstraction has 2282 states and 3145 transitions. [2024-12-02 14:54:08,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 14:54:08,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 3145 transitions. [2024-12-02 14:54:08,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 14:54:08,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:08,981 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] [2024-12-02 14:54:08,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 14:54:09,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 14:54:09,182 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:09,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:09,182 INFO L85 PathProgramCache]: Analyzing trace with hash -210547193, now seen corresponding path program 1 times [2024-12-02 14:54:09,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:09,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597633725] [2024-12-02 14:54:09,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:09,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:10,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:54:10,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:10,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597633725] [2024-12-02 14:54:10,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597633725] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:10,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106225428] [2024-12-02 14:54:10,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:10,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:10,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:10,184 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:10,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 14:54:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:11,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 3097 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:54:11,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 14:54:11,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:54:11,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106225428] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:11,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:54:11,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 14:54:11,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736715956] [2024-12-02 14:54:11,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:11,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:54:11,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:11,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:54:11,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:11,755 INFO L87 Difference]: Start difference. First operand 2282 states and 3145 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:54:11,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:11,869 INFO L93 Difference]: Finished difference Result 2304 states and 3171 transitions. [2024-12-02 14:54:11,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:11,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2024-12-02 14:54:11,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:11,880 INFO L225 Difference]: With dead ends: 2304 [2024-12-02 14:54:11,880 INFO L226 Difference]: Without dead ends: 2293 [2024-12-02 14:54:11,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:11,881 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 782 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:11,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 812 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:54:11,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2293 states. [2024-12-02 14:54:11,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2293 to 2282. [2024-12-02 14:54:11,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 1624 states have (on average 1.3288177339901477) internal successors, (2158), 1650 states have internal predecessors, (2158), 496 states have call successors, (496), 162 states have call predecessors, (496), 161 states have return successors, (490), 489 states have call predecessors, (490), 490 states have call successors, (490) [2024-12-02 14:54:11,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 3144 transitions. [2024-12-02 14:54:11,963 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 3144 transitions. Word has length 50 [2024-12-02 14:54:11,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:11,963 INFO L471 AbstractCegarLoop]: Abstraction has 2282 states and 3144 transitions. [2024-12-02 14:54:11,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:54:11,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 3144 transitions. [2024-12-02 14:54:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 14:54:11,964 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:11,964 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] [2024-12-02 14:54:11,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 14:54:12,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:12,165 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:12,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:12,165 INFO L85 PathProgramCache]: Analyzing trace with hash -153288891, now seen corresponding path program 1 times [2024-12-02 14:54:12,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:12,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861116842] [2024-12-02 14:54:12,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:12,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:54:13,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:13,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861116842] [2024-12-02 14:54:13,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861116842] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:13,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615320318] [2024-12-02 14:54:13,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:13,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:13,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:13,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:13,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 14:54:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:14,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 3092 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:54:14,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 14:54:14,735 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:54:14,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615320318] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:14,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:54:14,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 14:54:14,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073794987] [2024-12-02 14:54:14,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:14,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:54:14,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:14,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:54:14,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:14,737 INFO L87 Difference]: Start difference. First operand 2282 states and 3144 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:54:18,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:54:18,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:18,914 INFO L93 Difference]: Finished difference Result 2284 states and 3145 transitions. [2024-12-02 14:54:18,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:18,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2024-12-02 14:54:18,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:18,928 INFO L225 Difference]: With dead ends: 2284 [2024-12-02 14:54:18,928 INFO L226 Difference]: Without dead ends: 2281 [2024-12-02 14:54:18,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:18,930 INFO L435 NwaCegarLoop]: 784 mSDtfsCounter, 738 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:18,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 784 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 14:54:18,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2024-12-02 14:54:19,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 2281. [2024-12-02 14:54:19,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 1624 states have (on average 1.3282019704433496) internal successors, (2157), 1649 states have internal predecessors, (2157), 495 states have call successors, (495), 162 states have call predecessors, (495), 161 states have return successors, (490), 489 states have call predecessors, (490), 490 states have call successors, (490) [2024-12-02 14:54:19,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3142 transitions. [2024-12-02 14:54:19,076 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3142 transitions. Word has length 50 [2024-12-02 14:54:19,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:19,076 INFO L471 AbstractCegarLoop]: Abstraction has 2281 states and 3142 transitions. [2024-12-02 14:54:19,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:54:19,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3142 transitions. [2024-12-02 14:54:19,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-02 14:54:19,078 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:19,078 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] [2024-12-02 14:54:19,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-02 14:54:19,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:19,278 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:19,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:19,279 INFO L85 PathProgramCache]: Analyzing trace with hash -457275669, now seen corresponding path program 1 times [2024-12-02 14:54:19,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:19,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222670942] [2024-12-02 14:54:19,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:19,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:20,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:54:20,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:20,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222670942] [2024-12-02 14:54:20,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222670942] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:20,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848381350] [2024-12-02 14:54:20,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:20,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:20,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:20,257 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:20,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 14:54:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:21,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 3094 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:54:21,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 14:54:22,169 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:54:22,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848381350] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:22,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:54:22,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 14:54:22,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582167135] [2024-12-02 14:54:22,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:22,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:54:22,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:22,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:54:22,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:22,170 INFO L87 Difference]: Start difference. First operand 2281 states and 3142 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:54:26,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:54:26,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:26,338 INFO L93 Difference]: Finished difference Result 2283 states and 3143 transitions. [2024-12-02 14:54:26,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:26,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 51 [2024-12-02 14:54:26,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:26,350 INFO L225 Difference]: With dead ends: 2283 [2024-12-02 14:54:26,350 INFO L226 Difference]: Without dead ends: 2280 [2024-12-02 14:54:26,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:26,352 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 735 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:26,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 782 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 14:54:26,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2024-12-02 14:54:26,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 2280. [2024-12-02 14:54:26,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2280 states, 1624 states have (on average 1.3275862068965518) internal successors, (2156), 1648 states have internal predecessors, (2156), 494 states have call successors, (494), 162 states have call predecessors, (494), 161 states have return successors, (490), 489 states have call predecessors, (490), 490 states have call successors, (490) [2024-12-02 14:54:26,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2280 states to 2280 states and 3140 transitions. [2024-12-02 14:54:26,449 INFO L78 Accepts]: Start accepts. Automaton has 2280 states and 3140 transitions. Word has length 51 [2024-12-02 14:54:26,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:26,449 INFO L471 AbstractCegarLoop]: Abstraction has 2280 states and 3140 transitions. [2024-12-02 14:54:26,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:54:26,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2280 states and 3140 transitions. [2024-12-02 14:54:26,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-12-02 14:54:26,451 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:26,451 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] [2024-12-02 14:54:26,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 14:54:26,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:26,651 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:26,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:26,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1290926328, now seen corresponding path program 1 times [2024-12-02 14:54:26,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:26,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596959700] [2024-12-02 14:54:26,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:26,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:54:27,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:27,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596959700] [2024-12-02 14:54:27,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596959700] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:27,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646017300] [2024-12-02 14:54:27,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:27,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:27,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:27,827 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:27,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 14:54:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:29,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:54:29,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:29,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 14:54:29,488 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:54:29,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646017300] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:29,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:54:29,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 14:54:29,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143856560] [2024-12-02 14:54:29,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:29,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:54:29,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:29,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:54:29,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:29,490 INFO L87 Difference]: Start difference. First operand 2280 states and 3140 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:54:33,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:54:33,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:33,648 INFO L93 Difference]: Finished difference Result 2282 states and 3141 transitions. [2024-12-02 14:54:33,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:33,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2024-12-02 14:54:33,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:33,658 INFO L225 Difference]: With dead ends: 2282 [2024-12-02 14:54:33,658 INFO L226 Difference]: Without dead ends: 2279 [2024-12-02 14:54:33,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:33,660 INFO L435 NwaCegarLoop]: 780 mSDtfsCounter, 732 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:33,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 780 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 14:54:33,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2024-12-02 14:54:33,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2279. [2024-12-02 14:54:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 1624 states have (on average 1.3269704433497538) internal successors, (2155), 1647 states have internal predecessors, (2155), 493 states have call successors, (493), 162 states have call predecessors, (493), 161 states have return successors, (490), 489 states have call predecessors, (490), 490 states have call successors, (490) [2024-12-02 14:54:33,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 3138 transitions. [2024-12-02 14:54:33,775 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 3138 transitions. Word has length 52 [2024-12-02 14:54:33,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:33,776 INFO L471 AbstractCegarLoop]: Abstraction has 2279 states and 3138 transitions. [2024-12-02 14:54:33,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:54:33,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 3138 transitions. [2024-12-02 14:54:33,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 14:54:33,777 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:33,777 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] [2024-12-02 14:54:33,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 14:54:33,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:33,978 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:33,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:33,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1364288114, now seen corresponding path program 1 times [2024-12-02 14:54:33,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:33,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300624400] [2024-12-02 14:54:33,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:33,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:34,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:54:34,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:34,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300624400] [2024-12-02 14:54:34,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300624400] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:34,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794139067] [2024-12-02 14:54:34,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:34,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:34,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:34,905 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:34,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 14:54:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:36,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:54:36,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 14:54:36,823 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:54:36,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794139067] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:36,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:54:36,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 14:54:36,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882648767] [2024-12-02 14:54:36,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:36,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:54:36,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:36,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:54:36,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:36,825 INFO L87 Difference]: Start difference. First operand 2279 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:54:40,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:54:40,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:40,991 INFO L93 Difference]: Finished difference Result 2776 states and 3799 transitions. [2024-12-02 14:54:40,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:40,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 53 [2024-12-02 14:54:40,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:41,005 INFO L225 Difference]: With dead ends: 2776 [2024-12-02 14:54:41,005 INFO L226 Difference]: Without dead ends: 2744 [2024-12-02 14:54:41,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:41,007 INFO L435 NwaCegarLoop]: 1096 mSDtfsCounter, 659 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:41,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1489 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 14:54:41,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2024-12-02 14:54:41,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 2744. [2024-12-02 14:54:41,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2744 states, 1940 states have (on average 1.3170103092783505) internal successors, (2555), 1965 states have internal predecessors, (2555), 602 states have call successors, (602), 202 states have call predecessors, (602), 201 states have return successors, (601), 600 states have call predecessors, (601), 601 states have call successors, (601) [2024-12-02 14:54:41,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2744 states to 2744 states and 3758 transitions. [2024-12-02 14:54:41,195 INFO L78 Accepts]: Start accepts. Automaton has 2744 states and 3758 transitions. Word has length 53 [2024-12-02 14:54:41,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:41,195 INFO L471 AbstractCegarLoop]: Abstraction has 2744 states and 3758 transitions. [2024-12-02 14:54:41,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 14:54:41,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2744 states and 3758 transitions. [2024-12-02 14:54:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 14:54:41,198 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:41,198 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:54:41,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 14:54:41,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 14:54:41,399 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:41,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:41,399 INFO L85 PathProgramCache]: Analyzing trace with hash -980287044, now seen corresponding path program 1 times [2024-12-02 14:54:41,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:41,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358591138] [2024-12-02 14:54:41,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:41,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:42,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:54:42,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:42,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358591138] [2024-12-02 14:54:42,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358591138] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:42,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511585326] [2024-12-02 14:54:42,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:42,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:42,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:42,330 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:42,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 14:54:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:44,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 3191 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 14:54:44,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:44,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 14:54:44,194 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:54:44,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511585326] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:44,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:54:44,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 14:54:44,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629550092] [2024-12-02 14:54:44,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:44,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:54:44,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:44,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:54:44,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:44,196 INFO L87 Difference]: Start difference. First operand 2744 states and 3758 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 14:54:44,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:44,556 INFO L93 Difference]: Finished difference Result 7021 states and 9582 transitions. [2024-12-02 14:54:44,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:44,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2024-12-02 14:54:44,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:44,575 INFO L225 Difference]: With dead ends: 7021 [2024-12-02 14:54:44,575 INFO L226 Difference]: Without dead ends: 4280 [2024-12-02 14:54:44,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:44,583 INFO L435 NwaCegarLoop]: 741 mSDtfsCounter, 699 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:44,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1425 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:54:44,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2024-12-02 14:54:44,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4277. [2024-12-02 14:54:44,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 3033 states have (on average 1.3142103527860205) internal successors, (3986), 3070 states have internal predecessors, (3986), 914 states have call successors, (914), 330 states have call predecessors, (914), 329 states have return successors, (913), 912 states have call predecessors, (913), 913 states have call successors, (913) [2024-12-02 14:54:44,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 5813 transitions. [2024-12-02 14:54:44,763 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 5813 transitions. Word has length 71 [2024-12-02 14:54:44,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:44,763 INFO L471 AbstractCegarLoop]: Abstraction has 4277 states and 5813 transitions. [2024-12-02 14:54:44,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 14:54:44,764 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 5813 transitions. [2024-12-02 14:54:44,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 14:54:44,769 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:44,769 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:44,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 14:54:44,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 14:54:44,970 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:44,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:44,970 INFO L85 PathProgramCache]: Analyzing trace with hash -79038474, now seen corresponding path program 1 times [2024-12-02 14:54:44,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:44,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6309674] [2024-12-02 14:54:44,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:44,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:45,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:54:45,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:45,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6309674] [2024-12-02 14:54:45,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6309674] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:45,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612314469] [2024-12-02 14:54:45,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:45,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:45,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:45,934 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:45,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 14:54:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:47,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 3739 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 14:54:47,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:47,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:54:47,759 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:54:47,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612314469] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:47,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:54:47,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 14:54:47,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724715568] [2024-12-02 14:54:47,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:47,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:54:47,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:47,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:54:47,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:47,761 INFO L87 Difference]: Start difference. First operand 4277 states and 5813 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 14:54:47,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:47,980 INFO L93 Difference]: Finished difference Result 8563 states and 11875 transitions. [2024-12-02 14:54:47,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:47,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2024-12-02 14:54:47,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:48,002 INFO L225 Difference]: With dead ends: 8563 [2024-12-02 14:54:48,002 INFO L226 Difference]: Without dead ends: 4289 [2024-12-02 14:54:48,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:48,015 INFO L435 NwaCegarLoop]: 751 mSDtfsCounter, 0 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:48,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1497 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:54:48,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4289 states. [2024-12-02 14:54:48,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4289 to 4289. [2024-12-02 14:54:48,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4289 states, 3045 states have (on average 1.3129720853858784) internal successors, (3998), 3082 states have internal predecessors, (3998), 914 states have call successors, (914), 330 states have call predecessors, (914), 329 states have return successors, (913), 912 states have call predecessors, (913), 913 states have call successors, (913) [2024-12-02 14:54:48,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4289 states to 4289 states and 5825 transitions. [2024-12-02 14:54:48,294 INFO L78 Accepts]: Start accepts. Automaton has 4289 states and 5825 transitions. Word has length 134 [2024-12-02 14:54:48,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:48,294 INFO L471 AbstractCegarLoop]: Abstraction has 4289 states and 5825 transitions. [2024-12-02 14:54:48,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 14:54:48,295 INFO L276 IsEmpty]: Start isEmpty. Operand 4289 states and 5825 transitions. [2024-12-02 14:54:48,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 14:54:48,301 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:48,301 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:48,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 14:54:48,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 14:54:48,502 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:48,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:48,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1585674216, now seen corresponding path program 1 times [2024-12-02 14:54:48,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:48,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139623854] [2024-12-02 14:54:48,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:48,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:49,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:54:49,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:49,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139623854] [2024-12-02 14:54:49,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139623854] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:49,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791892203] [2024-12-02 14:54:49,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:49,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:49,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:49,453 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:49,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 14:54:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:51,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 3744 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:54:51,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:51,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 14:54:51,308 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:54:51,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791892203] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:51,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:54:51,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 14:54:51,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757551256] [2024-12-02 14:54:51,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:51,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:54:51,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:51,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:54:51,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:51,310 INFO L87 Difference]: Start difference. First operand 4289 states and 5825 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:54:51,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:51,682 INFO L93 Difference]: Finished difference Result 8599 states and 11803 transitions. [2024-12-02 14:54:51,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:51,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-12-02 14:54:51,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:51,708 INFO L225 Difference]: With dead ends: 8599 [2024-12-02 14:54:51,708 INFO L226 Difference]: Without dead ends: 4313 [2024-12-02 14:54:51,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:51,724 INFO L435 NwaCegarLoop]: 750 mSDtfsCounter, 1 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:51,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1493 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:54:51,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2024-12-02 14:54:51,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4301. [2024-12-02 14:54:51,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 3057 states have (on average 1.3117435394177297) internal successors, (4010), 3094 states have internal predecessors, (4010), 914 states have call successors, (914), 330 states have call predecessors, (914), 329 states have return successors, (913), 912 states have call predecessors, (913), 913 states have call successors, (913) [2024-12-02 14:54:51,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 5837 transitions. [2024-12-02 14:54:51,958 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 5837 transitions. Word has length 135 [2024-12-02 14:54:51,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:51,958 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 5837 transitions. [2024-12-02 14:54:51,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 14:54:51,959 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 5837 transitions. [2024-12-02 14:54:51,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-12-02 14:54:51,965 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:51,965 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:51,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 14:54:52,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:52,166 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:52,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:52,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1139922103, now seen corresponding path program 1 times [2024-12-02 14:54:52,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:52,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587069348] [2024-12-02 14:54:52,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:52,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:53,253 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 14:54:53,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:53,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587069348] [2024-12-02 14:54:53,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587069348] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:53,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519513436] [2024-12-02 14:54:53,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:53,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:53,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:53,255 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:53,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 14:54:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:55,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 4158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 14:54:55,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:55,169 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-02 14:54:55,169 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:54:55,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519513436] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:55,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:54:55,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-02 14:54:55,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616409684] [2024-12-02 14:54:55,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:55,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:54:55,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:55,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:54:55,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:54:55,171 INFO L87 Difference]: Start difference. First operand 4301 states and 5837 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 14:54:55,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:55,368 INFO L93 Difference]: Finished difference Result 8623 states and 11935 transitions. [2024-12-02 14:54:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:54:55,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-12-02 14:54:55,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:55,386 INFO L225 Difference]: With dead ends: 8623 [2024-12-02 14:54:55,387 INFO L226 Difference]: Without dead ends: 4325 [2024-12-02 14:54:55,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:54:55,402 INFO L435 NwaCegarLoop]: 750 mSDtfsCounter, 0 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:55,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2241 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:54:55,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4325 states. [2024-12-02 14:54:55,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4325 to 4325. [2024-12-02 14:54:55,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 3081 states have (on average 1.3093151574164232) internal successors, (4034), 3118 states have internal predecessors, (4034), 914 states have call successors, (914), 330 states have call predecessors, (914), 329 states have return successors, (913), 912 states have call predecessors, (913), 913 states have call successors, (913) [2024-12-02 14:54:55,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 5861 transitions. [2024-12-02 14:54:55,586 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 5861 transitions. Word has length 190 [2024-12-02 14:54:55,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:55,586 INFO L471 AbstractCegarLoop]: Abstraction has 4325 states and 5861 transitions. [2024-12-02 14:54:55,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 14:54:55,587 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 5861 transitions. [2024-12-02 14:54:55,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-12-02 14:54:55,593 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:55,593 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:55,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 14:54:55,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:55,794 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:55,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:55,794 INFO L85 PathProgramCache]: Analyzing trace with hash -145077883, now seen corresponding path program 1 times [2024-12-02 14:54:55,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:55,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258313416] [2024-12-02 14:54:55,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:55,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:56,981 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 14:54:56,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:56,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258313416] [2024-12-02 14:54:56,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258313416] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:56,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536863971] [2024-12-02 14:54:56,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:56,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:56,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:56,983 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:56,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 14:54:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:58,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 4154 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:54:58,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 14:54:58,898 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:54:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 14:54:59,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536863971] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:54:59,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:54:59,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-02 14:54:59,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059097344] [2024-12-02 14:54:59,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:54:59,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:54:59,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:59,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:54:59,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:54:59,898 INFO L87 Difference]: Start difference. First operand 4325 states and 5861 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-12-02 14:55:00,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:00,246 INFO L93 Difference]: Finished difference Result 8788 states and 11938 transitions. [2024-12-02 14:55:00,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:55:00,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 192 [2024-12-02 14:55:00,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:00,263 INFO L225 Difference]: With dead ends: 8788 [2024-12-02 14:55:00,263 INFO L226 Difference]: Without dead ends: 4466 [2024-12-02 14:55:00,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:55:00,273 INFO L435 NwaCegarLoop]: 747 mSDtfsCounter, 78 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:00,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1507 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:55:00,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4466 states. [2024-12-02 14:55:00,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4466 to 4466. [2024-12-02 14:55:00,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4466 states, 3222 states have (on average 1.314400993171943) internal successors, (4235), 3259 states have internal predecessors, (4235), 914 states have call successors, (914), 330 states have call predecessors, (914), 329 states have return successors, (913), 912 states have call predecessors, (913), 913 states have call successors, (913) [2024-12-02 14:55:00,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 6062 transitions. [2024-12-02 14:55:00,450 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 6062 transitions. Word has length 192 [2024-12-02 14:55:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:00,450 INFO L471 AbstractCegarLoop]: Abstraction has 4466 states and 6062 transitions. [2024-12-02 14:55:00,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-12-02 14:55:00,450 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 6062 transitions. [2024-12-02 14:55:00,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 14:55:00,456 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:00,456 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 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 14:55:00,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 14:55:00,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 14:55:00,657 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:00,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:00,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1643867526, now seen corresponding path program 2 times [2024-12-02 14:55:00,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:00,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268065183] [2024-12-02 14:55:00,658 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:55:00,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:01,527 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 14:55:01,527 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:55:01,836 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-12-02 14:55:01,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:01,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268065183] [2024-12-02 14:55:01,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268065183] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:01,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:01,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:55:01,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320202165] [2024-12-02 14:55:01,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:01,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:55:01,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:01,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:55:01,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:55:01,839 INFO L87 Difference]: Start difference. First operand 4466 states and 6062 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 14:55:02,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:02,083 INFO L93 Difference]: Finished difference Result 8977 states and 12373 transitions. [2024-12-02 14:55:02,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:55:02,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 204 [2024-12-02 14:55:02,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:02,119 INFO L225 Difference]: With dead ends: 8977 [2024-12-02 14:55:02,119 INFO L226 Difference]: Without dead ends: 4514 [2024-12-02 14:55:02,136 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 14:55:02,136 INFO L435 NwaCegarLoop]: 750 mSDtfsCounter, 0 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2996 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 14:55:02,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2996 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:55:02,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4514 states. [2024-12-02 14:55:02,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4514 to 4514. [2024-12-02 14:55:02,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4514 states, 3258 states have (on average 1.310926949048496) internal successors, (4271), 3295 states have internal predecessors, (4271), 914 states have call successors, (914), 330 states have call predecessors, (914), 341 states have return successors, (961), 924 states have call predecessors, (961), 913 states have call successors, (961) [2024-12-02 14:55:02,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4514 states to 4514 states and 6146 transitions. [2024-12-02 14:55:02,385 INFO L78 Accepts]: Start accepts. Automaton has 4514 states and 6146 transitions. Word has length 204 [2024-12-02 14:55:02,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:02,386 INFO L471 AbstractCegarLoop]: Abstraction has 4514 states and 6146 transitions. [2024-12-02 14:55:02,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 14:55:02,386 INFO L276 IsEmpty]: Start isEmpty. Operand 4514 states and 6146 transitions. [2024-12-02 14:55:02,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-12-02 14:55:02,395 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:02,395 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 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 14:55:02,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 14:55:02,395 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:02,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:02,396 INFO L85 PathProgramCache]: Analyzing trace with hash 97425388, now seen corresponding path program 1 times [2024-12-02 14:55:02,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:02,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662287541] [2024-12-02 14:55:02,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:02,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 14:55:03,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:03,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662287541] [2024-12-02 14:55:03,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662287541] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:03,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:03,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:55:03,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74968892] [2024-12-02 14:55:03,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:03,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:55:03,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:03,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:55:03,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:55:03,591 INFO L87 Difference]: Start difference. First operand 4514 states and 6146 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 14:55:03,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:03,789 INFO L93 Difference]: Finished difference Result 9035 states and 12304 transitions. [2024-12-02 14:55:03,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:55:03,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 270 [2024-12-02 14:55:03,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:03,811 INFO L225 Difference]: With dead ends: 9035 [2024-12-02 14:55:03,811 INFO L226 Difference]: Without dead ends: 4524 [2024-12-02 14:55:03,822 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 14:55:03,822 INFO L435 NwaCegarLoop]: 750 mSDtfsCounter, 0 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2244 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 14:55:03,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2244 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:55:03,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4524 states. [2024-12-02 14:55:04,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4524 to 4524. [2024-12-02 14:55:04,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 3268 states have (on average 1.3099755201958385) internal successors, (4281), 3305 states have internal predecessors, (4281), 914 states have call successors, (914), 330 states have call predecessors, (914), 341 states have return successors, (961), 924 states have call predecessors, (961), 913 states have call successors, (961) [2024-12-02 14:55:04,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 6156 transitions. [2024-12-02 14:55:04,036 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 6156 transitions. Word has length 270 [2024-12-02 14:55:04,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:04,036 INFO L471 AbstractCegarLoop]: Abstraction has 4524 states and 6156 transitions. [2024-12-02 14:55:04,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 14:55:04,037 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 6156 transitions. [2024-12-02 14:55:04,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-12-02 14:55:04,042 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:04,042 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 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 14:55:04,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 14:55:04,042 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:04,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:04,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1122798484, now seen corresponding path program 1 times [2024-12-02 14:55:04,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:04,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751173001] [2024-12-02 14:55:04,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:04,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:05,199 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-12-02 14:55:05,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:05,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751173001] [2024-12-02 14:55:05,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751173001] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:55:05,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875259534] [2024-12-02 14:55:05,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:05,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:55:05,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:55:05,202 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:55:05,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 14:55:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:07,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 4524 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 14:55:07,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:55:07,437 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-12-02 14:55:07,438 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:55:07,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875259534] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:07,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:55:07,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-02 14:55:07,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930288507] [2024-12-02 14:55:07,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:07,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:55:07,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:07,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:55:07,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:55:07,440 INFO L87 Difference]: Start difference. First operand 4524 states and 6156 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-12-02 14:55:07,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:07,689 INFO L93 Difference]: Finished difference Result 9141 states and 12693 transitions. [2024-12-02 14:55:07,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:55:07,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 273 [2024-12-02 14:55:07,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:07,708 INFO L225 Difference]: With dead ends: 9141 [2024-12-02 14:55:07,708 INFO L226 Difference]: Without dead ends: 4620 [2024-12-02 14:55:07,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:55:07,721 INFO L435 NwaCegarLoop]: 755 mSDtfsCounter, 0 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:07,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2254 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:55:07,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4620 states. [2024-12-02 14:55:07,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4620 to 4620. [2024-12-02 14:55:07,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4620 states, 3328 states have (on average 1.3079927884615385) internal successors, (4353), 3365 states have internal predecessors, (4353), 950 states have call successors, (950), 330 states have call predecessors, (950), 341 states have return successors, (997), 960 states have call predecessors, (997), 949 states have call successors, (997) [2024-12-02 14:55:07,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4620 states to 4620 states and 6300 transitions. [2024-12-02 14:55:07,914 INFO L78 Accepts]: Start accepts. Automaton has 4620 states and 6300 transitions. Word has length 273 [2024-12-02 14:55:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:07,915 INFO L471 AbstractCegarLoop]: Abstraction has 4620 states and 6300 transitions. [2024-12-02 14:55:07,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-12-02 14:55:07,915 INFO L276 IsEmpty]: Start isEmpty. Operand 4620 states and 6300 transitions. [2024-12-02 14:55:07,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-12-02 14:55:07,920 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:07,920 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 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 14:55:07,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 14:55:08,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:55:08,120 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:08,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:08,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1109756262, now seen corresponding path program 1 times [2024-12-02 14:55:08,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:08,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523061702] [2024-12-02 14:55:08,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:08,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:09,339 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-12-02 14:55:09,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:09,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523061702] [2024-12-02 14:55:09,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523061702] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:55:09,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449252975] [2024-12-02 14:55:09,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:09,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:55:09,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:55:09,341 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:55:09,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 14:55:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:11,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 4530 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:55:11,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:55:11,650 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-12-02 14:55:11,650 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:55:13,278 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-12-02 14:55:13,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449252975] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:55:13,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:55:13,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-02 14:55:13,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528092710] [2024-12-02 14:55:13,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:55:13,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:55:13,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:13,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:55:13,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:55:13,281 INFO L87 Difference]: Start difference. First operand 4620 states and 6300 transitions. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 5 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) [2024-12-02 14:55:13,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:13,687 INFO L93 Difference]: Finished difference Result 9528 states and 13056 transitions. [2024-12-02 14:55:13,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:55:13,687 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 5 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) Word has length 275 [2024-12-02 14:55:13,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:13,712 INFO L225 Difference]: With dead ends: 9528 [2024-12-02 14:55:13,712 INFO L226 Difference]: Without dead ends: 4911 [2024-12-02 14:55:13,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:55:13,726 INFO L435 NwaCegarLoop]: 747 mSDtfsCounter, 128 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:13,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1513 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:55:13,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2024-12-02 14:55:13,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 4911. [2024-12-02 14:55:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4911 states, 3544 states have (on average 1.3061512415349887) internal successors, (4629), 3581 states have internal predecessors, (4629), 1025 states have call successors, (1025), 330 states have call predecessors, (1025), 341 states have return successors, (1072), 1035 states have call predecessors, (1072), 1024 states have call successors, (1072) [2024-12-02 14:55:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4911 states to 4911 states and 6726 transitions. [2024-12-02 14:55:13,959 INFO L78 Accepts]: Start accepts. Automaton has 4911 states and 6726 transitions. Word has length 275 [2024-12-02 14:55:13,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:13,959 INFO L471 AbstractCegarLoop]: Abstraction has 4911 states and 6726 transitions. [2024-12-02 14:55:13,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 5 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) [2024-12-02 14:55:13,959 INFO L276 IsEmpty]: Start isEmpty. Operand 4911 states and 6726 transitions. [2024-12-02 14:55:13,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-12-02 14:55:13,965 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:13,965 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:55:13,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 14:55:14,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:55:14,166 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:14,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:14,166 INFO L85 PathProgramCache]: Analyzing trace with hash 110212755, now seen corresponding path program 1 times [2024-12-02 14:55:14,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:14,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107101996] [2024-12-02 14:55:14,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:14,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-12-02 14:55:15,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:15,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107101996] [2024-12-02 14:55:15,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107101996] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:15,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:15,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:55:15,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61188286] [2024-12-02 14:55:15,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:15,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:55:15,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:15,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:55:15,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:55:15,391 INFO L87 Difference]: Start difference. First operand 4911 states and 6726 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 14:55:15,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:15,729 INFO L93 Difference]: Finished difference Result 9840 states and 13494 transitions. [2024-12-02 14:55:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:55:15,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 276 [2024-12-02 14:55:15,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:15,749 INFO L225 Difference]: With dead ends: 9840 [2024-12-02 14:55:15,749 INFO L226 Difference]: Without dead ends: 4932 [2024-12-02 14:55:15,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:55:15,761 INFO L435 NwaCegarLoop]: 749 mSDtfsCounter, 1 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2984 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:15,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2984 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:55:15,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4932 states. [2024-12-02 14:55:15,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4932 to 4926. [2024-12-02 14:55:15,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4926 states, 3556 states have (on average 1.3051181102362204) internal successors, (4641), 3593 states have internal predecessors, (4641), 1025 states have call successors, (1025), 330 states have call predecessors, (1025), 344 states have return successors, (1075), 1038 states have call predecessors, (1075), 1024 states have call successors, (1075) [2024-12-02 14:55:15,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4926 states to 4926 states and 6741 transitions. [2024-12-02 14:55:15,963 INFO L78 Accepts]: Start accepts. Automaton has 4926 states and 6741 transitions. Word has length 276 [2024-12-02 14:55:15,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:15,963 INFO L471 AbstractCegarLoop]: Abstraction has 4926 states and 6741 transitions. [2024-12-02 14:55:15,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 14:55:15,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4926 states and 6741 transitions. [2024-12-02 14:55:15,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-12-02 14:55:15,969 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:15,969 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 14:55:15,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 14:55:15,969 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:15,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:15,970 INFO L85 PathProgramCache]: Analyzing trace with hash -66196203, now seen corresponding path program 2 times [2024-12-02 14:55:15,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:15,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102458003] [2024-12-02 14:55:15,970 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:55:15,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:16,744 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 14:55:16,744 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:55:16,935 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-12-02 14:55:16,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:16,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102458003] [2024-12-02 14:55:16,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102458003] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:16,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:16,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:55:16,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450041740] [2024-12-02 14:55:16,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:16,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:55:16,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:16,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:55:16,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:55:16,936 INFO L87 Difference]: Start difference. First operand 4926 states and 6741 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 14:55:20,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:55:21,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:21,189 INFO L93 Difference]: Finished difference Result 4926 states and 6741 transitions. [2024-12-02 14:55:21,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:55:21,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 296 [2024-12-02 14:55:21,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:21,198 INFO L225 Difference]: With dead ends: 4926 [2024-12-02 14:55:21,198 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 14:55:21,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 14:55:21,207 INFO L435 NwaCegarLoop]: 759 mSDtfsCounter, 382 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:21,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1440 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 14:55:21,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 14:55:21,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 14:55:21,208 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 14:55:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 14:55:21,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 296 [2024-12-02 14:55:21,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:21,214 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 14:55:21,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 14:55:21,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 14:55:21,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 14:55:21,216 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 14:55:21,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 14:55:21,219 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:55:21,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 14:56:47,328 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:56:47,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:56:47 BoogieIcfgContainer [2024-12-02 14:56:47,344 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:56:47,344 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:56:47,344 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:56:47,344 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:56:47,345 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:53:49" (3/4) ... [2024-12-02 14:56:47,347 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 14:56:47,354 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_unlock_pf_mutex [2024-12-02 14:56:47,354 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_release [2024-12-02 14:56:47,354 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_check_events [2024-12-02 14:56:47,354 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_init [2024-12-02 14:56:47,354 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_getgeo [2024-12-02 14:56:47,354 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure unregister_blkdev [2024-12-02 14:56:47,354 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_reg [2024-12-02 14:56:47,354 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_read_regr [2024-12-02 14:56:47,354 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-12-02 14:56:47,354 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_disconnect [2024-12-02 14:56:47,354 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure status_reg [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __const_udelay [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_pf_mutex [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_connect [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure put_disk [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_atapi [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_capacity [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_reset [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_command [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_probe [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_read_block [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure set_capacity [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_lock [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_wait [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_reg [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_identify [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_sleep [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_req_sense [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_mode_sense [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_completion [2024-12-02 14:56:47,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure xl [2024-12-02 14:56:47,356 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2024-12-02 14:56:47,356 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure xs [2024-12-02 14:56:47,356 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_ioctl [2024-12-02 14:56:47,356 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_write_block [2024-12-02 14:56:47,385 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 215 nodes and edges [2024-12-02 14:56:47,388 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2024-12-02 14:56:47,391 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-12-02 14:56:47,394 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-12-02 14:56:47,397 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 14:56:47,400 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 14:56:47,403 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 14:56:47,623 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 14:56:47,624 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 14:56:47,624 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:56:47,624 INFO L158 Benchmark]: Toolchain (without parser) took 188806.22ms. Allocated memory was 117.4MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 86.3MB in the beginning and 920.7MB in the end (delta: -834.4MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-12-02 14:56:47,625 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 73.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:56:47,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1351.55ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 70.4MB in the end (delta: 15.7MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2024-12-02 14:56:47,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.17ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 57.4MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:56:47,625 INFO L158 Benchmark]: Boogie Preprocessor took 210.76ms. Allocated memory is still 117.4MB. Free memory was 57.4MB in the beginning and 32.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 14:56:47,625 INFO L158 Benchmark]: RCFGBuilder took 8771.67ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 32.3MB in the beginning and 86.1MB in the end (delta: -53.8MB). Peak memory consumption was 104.2MB. Max. memory is 16.1GB. [2024-12-02 14:56:47,626 INFO L158 Benchmark]: TraceAbstraction took 178063.80ms. Allocated memory was 226.5MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 86.1MB in the beginning and 954.0MB in the end (delta: -867.9MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-12-02 14:56:47,626 INFO L158 Benchmark]: Witness Printer took 279.56ms. Allocated memory is still 2.2GB. Free memory was 954.0MB in the beginning and 920.7MB in the end (delta: 33.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 14:56:47,627 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 73.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1351.55ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 70.4MB in the end (delta: 15.7MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.17ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 57.4MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 210.76ms. Allocated memory is still 117.4MB. Free memory was 57.4MB in the beginning and 32.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 8771.67ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 32.3MB in the beginning and 86.1MB in the end (delta: -53.8MB). Peak memory consumption was 104.2MB. Max. memory is 16.1GB. * TraceAbstraction took 178063.80ms. Allocated memory was 226.5MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 86.1MB in the beginning and 954.0MB in the end (delta: -867.9MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 279.56ms. Allocated memory is still 2.2GB. Free memory was 954.0MB in the beginning and 920.7MB in the end (delta: 33.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * 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: 5165]: 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 39 procedures, 579 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 91.9s, OverallIterations: 23, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 29.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 7909 SdHoareTripleChecker+Valid, 25.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7879 mSDsluCounter, 37004 SdHoareTripleChecker+Invalid, 25.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18148 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 277 IncrementalHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 18856 mSDtfsCounter, 277 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2176 GetRequests, 2112 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4926occurred in iteration=22, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 23 MinimizatonAttempts, 601 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.5s SsaConstructionTime, 6.3s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 4406 NumberOfCodeBlocks, 4093 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 4833 ConstructedInterpolants, 0 QuantifiedInterpolants, 5567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 52412 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 40 InterpolantComputations, 21 PerfectInterpolantSequences, 2338/2357 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: 4332]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) - InvariantResult [Line: 3822]: Location Invariant Derived location invariant: ((((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) || ((((((1 == ldv_mutex_mutex_of_device) && (2 == ldv_mutex_pf_mutex)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0))) - InvariantResult [Line: 3674]: Loop Invariant Derived loop invariant: ((((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (unit <= 3)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) - InvariantResult [Line: 3822]: Location Invariant Derived location invariant: ((((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) || ((((((1 == ldv_mutex_mutex_of_device) && (2 == ldv_mutex_pf_mutex)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0))) - InvariantResult [Line: 4070]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) - InvariantResult [Line: 4070]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) - InvariantResult [Line: 3983]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 4341]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) - InvariantResult [Line: 3948]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 4369]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) - InvariantResult [Line: 4112]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) RESULT: Ultimate proved your program to be correct! [2024-12-02 14:56:47,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8666b27b-0712-41ed-a1aa-47a158b62a03/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