./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB --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 d8753c57388e5055354b3fbc6056201b4b60a43a04993bc3e2112ce6b572c942 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:21:56,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:21:56,900 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:21:56,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:21:56,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:21:56,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:21:56,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:21:56,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:21:56,963 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:21:56,963 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:21:56,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:21:56,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:21:56,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:21:56,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:21:56,967 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:21:56,968 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:21:56,968 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:21:56,968 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:21:56,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:21:56,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:21:56,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:21:56,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:21:56,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:21:56,969 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:21:56,969 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:21:56,969 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:21:56,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:21:56,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:21:56,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:21:56,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:21:56,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:21:56,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:21:56,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:21:56,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:21:56,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:21:56,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:21:56,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:21:56,970 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:21:56,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:21:56,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:21:56,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:21:56,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:21:56,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:21:56,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:21:56,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:21:56,973 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_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB 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 -> d8753c57388e5055354b3fbc6056201b4b60a43a04993bc3e2112ce6b572c942 [2024-11-28 04:21:57,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:21:57,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:21:57,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:21:57,377 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:21:57,378 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:21:57,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2024-11-28 04:22:00,518 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/data/cb4f7a7bd/ee5edf599210459cb591a102a354a772/FLAG7b2586ef9 [2024-11-28 04:22:01,165 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:22:01,169 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2024-11-28 04:22:01,227 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/data/cb4f7a7bd/ee5edf599210459cb591a102a354a772/FLAG7b2586ef9 [2024-11-28 04:22:01,609 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/data/cb4f7a7bd/ee5edf599210459cb591a102a354a772 [2024-11-28 04:22:01,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:22:01,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:22:01,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:22:01,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:22:01,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:22:01,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:22:01" (1/1) ... [2024-11-28 04:22:01,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ef60a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:01, skipping insertion in model container [2024-11-28 04:22:01,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:22:01" (1/1) ... [2024-11-28 04:22:01,735 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:22:02,999 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_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i[143316,143329] [2024-11-28 04:22:03,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:22:03,073 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:22:03,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3278] [2024-11-28 04:22:03,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3281] [2024-11-28 04:22:03,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3284] [2024-11-28 04:22:03,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3287] [2024-11-28 04:22:03,295 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [3300] [2024-11-28 04:22:03,486 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_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i[143316,143329] [2024-11-28 04:22:03,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:22:03,564 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:22:03,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03 WrapperNode [2024-11-28 04:22:03,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:22:03,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:22:03,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:22:03,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:22:03,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:03,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:03,765 INFO L138 Inliner]: procedures = 141, calls = 665, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 2215 [2024-11-28 04:22:03,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:22:03,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:22:03,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:22:03,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:22:03,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:03,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:03,790 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:04,096 INFO L175 MemorySlicer]: Split 339 memory accesses to 8 slices as follows [2, 292, 2, 9, 1, 6, 24, 3]. 86 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 0, 0, 0, 0, 6, 0, 0]. The 169 writes are split as follows [0, 138, 2, 2, 0, 0, 24, 3]. [2024-11-28 04:22:04,102 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:04,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:04,186 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:04,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:04,201 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:04,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:04,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:04,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:22:04,271 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:22:04,275 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:22:04,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:22:04,276 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (1/1) ... [2024-11-28 04:22:04,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:22:04,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:22:04,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:22:04,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:22:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-28 04:22:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-28 04:22:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 04:22:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 04:22:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 04:22:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 04:22:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 04:22:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 04:22:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 04:22:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 04:22:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2024-11-28 04:22:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2024-11-28 04:22:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-28 04:22:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-28 04:22:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-28 04:22:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-28 04:22:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-28 04:22:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-28 04:22:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-28 04:22:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-28 04:22:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-28 04:22:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:22:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-28 04:22:04,358 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2024-11-28 04:22:04,358 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure retry_transmit [2024-11-28 04:22:04,358 INFO L138 BoogieDeclarations]: Found implementation of procedure retry_transmit [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-28 04:22:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-28 04:22:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-28 04:22:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-28 04:22:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-28 04:22:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-28 04:22:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-28 04:22:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-28 04:22:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-28 04:22:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-28 04:22:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-28 04:22:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-28 04:22:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-28 04:22:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-28 04:22:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-28 04:22:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 04:22:04,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 04:22:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_close [2024-11-28 04:22:04,362 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_close [2024-11-28 04:22:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure remove_msg [2024-11-28 04:22:04,363 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_msg [2024-11-28 04:22:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2024-11-28 04:22:04,363 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2024-11-28 04:22:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure task_pid [2024-11-28 04:22:04,363 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pid [2024-11-28 04:22:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-28 04:22:04,363 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-28 04:22:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unlock [2024-11-28 04:22:04,363 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unlock [2024-11-28 04:22:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:22:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:22:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:22:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:22:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:22:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:22:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 04:22:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 04:22:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-28 04:22:04,364 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-28 04:22:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-28 04:22:04,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-28 04:22:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-28 04:22:04,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-28 04:22:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:22:04,364 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:22:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure add_msg [2024-11-28 04:22:04,364 INFO L138 BoogieDeclarations]: Found implementation of procedure add_msg [2024-11-28 04:22:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:22:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2024-11-28 04:22:04,364 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2024-11-28 04:22:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-28 04:22:04,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-28 04:22:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-28 04:22:04,365 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-28 04:22:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_poll [2024-11-28 04:22:04,365 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_poll [2024-11-28 04:22:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:22:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2024-11-28 04:22:04,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2024-11-28 04:22:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:22:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:22:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:22:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:22:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:22:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:22:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 04:22:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 04:22:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 04:22:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure findClient [2024-11-28 04:22:04,368 INFO L138 BoogieDeclarations]: Found implementation of procedure findClient [2024-11-28 04:22:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure put_char [2024-11-28 04:22:04,368 INFO L138 BoogieDeclarations]: Found implementation of procedure put_char [2024-11-28 04:22:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:22:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:22:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:22:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:22:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:22:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 04:22:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 04:22:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 04:22:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-28 04:22:04,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-28 04:22:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2024-11-28 04:22:04,369 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2024-11-28 04:22:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2024-11-28 04:22:04,369 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2024-11-28 04:22:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure remove_client_block [2024-11-28 04:22:04,369 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_client_block [2024-11-28 04:22:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-28 04:22:04,369 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-28 04:22:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:22:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure on_receive_block [2024-11-28 04:22:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure on_receive_block [2024-11-28 04:22:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-28 04:22:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-28 04:22:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure flush [2024-11-28 04:22:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure flush [2024-11-28 04:22:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_set_termios [2024-11-28 04:22:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_set_termios [2024-11-28 04:22:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-28 04:22:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-28 04:22:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_ioctl [2024-11-28 04:22:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_ioctl [2024-11-28 04:22:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure remove_from_tx_queue [2024-11-28 04:22:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_from_tx_queue [2024-11-28 04:22:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:22:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:22:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:22:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:22:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:22:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:22:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:22:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 04:22:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure tty_lock [2024-11-28 04:22:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_lock [2024-11-28 04:22:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_transmit [2024-11-28 04:22:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_transmit [2024-11-28 04:22:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-28 04:22:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-28 04:22:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-28 04:22:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-28 04:22:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-28 04:22:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-28 04:22:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-28 04:22:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-28 04:22:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:22:04,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:22:04,969 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:22:04,971 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:22:05,096 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-28 04:22:16,496 INFO L? ?]: Removed 1031 outVars from TransFormulas that were not future-live. [2024-11-28 04:22:16,496 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:22:16,542 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:22:16,542 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:22:16,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:22:16 BoogieIcfgContainer [2024-11-28 04:22:16,543 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:22:16,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:22:16,545 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:22:16,559 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:22:16,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:22:01" (1/3) ... [2024-11-28 04:22:16,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a88657d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:22:16, skipping insertion in model container [2024-11-28 04:22:16,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:03" (2/3) ... [2024-11-28 04:22:16,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a88657d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:22:16, skipping insertion in model container [2024-11-28 04:22:16,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:22:16" (3/3) ... [2024-11-28 04:22:16,561 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2024-11-28 04:22:16,582 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:22:16,584 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i that has 50 procedures, 875 locations, 1 initial locations, 18 loop locations, and 1 error locations. [2024-11-28 04:22:16,684 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:22:16,701 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;@b515aba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:22:16,701 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:22:16,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 839 states, 604 states have (on average 1.4072847682119205) internal successors, (850), 640 states have internal predecessors, (850), 192 states have call successors, (192), 42 states have call predecessors, (192), 41 states have return successors, (188), 178 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-28 04:22:16,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 04:22:16,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:22:16,732 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:22:16,732 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:22:16,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:22:16,740 INFO L85 PathProgramCache]: Analyzing trace with hash -205435136, now seen corresponding path program 1 times [2024-11-28 04:22:16,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:22:16,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68961221] [2024-11-28 04:22:16,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:22:16,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:22:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:22:17,513 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-28 04:22:17,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:22:17,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68961221] [2024-11-28 04:22:17,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68961221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:22:17,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059122174] [2024-11-28 04:22:17,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:22:17,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:22:17,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:22:17,517 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:22:17,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:22:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:22:18,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:22:18,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:22:18,376 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-28 04:22:18,379 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:22:18,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059122174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:22:18,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:22:18,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:22:18,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492375278] [2024-11-28 04:22:18,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:22:18,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:22:18,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:22:18,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:22:18,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:22:18,412 INFO L87 Difference]: Start difference. First operand has 839 states, 604 states have (on average 1.4072847682119205) internal successors, (850), 640 states have internal predecessors, (850), 192 states have call successors, (192), 42 states have call predecessors, (192), 41 states have return successors, (188), 178 states have call predecessors, (188), 188 states have call successors, (188) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 04:22:18,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:22:18,584 INFO L93 Difference]: Finished difference Result 1673 states and 2497 transitions. [2024-11-28 04:22:18,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:22:18,586 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 174 [2024-11-28 04:22:18,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:22:18,619 INFO L225 Difference]: With dead ends: 1673 [2024-11-28 04:22:18,620 INFO L226 Difference]: Without dead ends: 822 [2024-11-28 04:22:18,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:22:18,636 INFO L435 NwaCegarLoop]: 1219 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:22:18,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:22:18,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-28 04:22:18,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2024-11-28 04:22:18,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 594 states have (on average 1.387205387205387) internal successors, (824), 624 states have internal predecessors, (824), 187 states have call successors, (187), 41 states have call predecessors, (187), 40 states have return successors, (186), 176 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-28 04:22:18,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1197 transitions. [2024-11-28 04:22:18,763 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1197 transitions. Word has length 174 [2024-11-28 04:22:18,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:22:18,765 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 1197 transitions. [2024-11-28 04:22:18,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 04:22:18,765 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1197 transitions. [2024-11-28 04:22:18,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 04:22:18,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:22:18,769 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:22:18,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:22:18,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cb5b7a-4ae4-470a-a4f7-a33c0970159a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:22:18,970 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:22:18,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:22:18,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1866130932, now seen corresponding path program 1 times [2024-11-28 04:22:18,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:22:18,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168808780] [2024-11-28 04:22:18,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:22:18,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:22:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:22:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-28 04:22:19,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:22:19,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168808780] [2024-11-28 04:22:19,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168808780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:22:19,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:22:19,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:22:19,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144216546] [2024-11-28 04:22:19,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:22:19,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:22:19,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:22:19,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:22:19,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:22:19,496 INFO L87 Difference]: Start difference. First operand 822 states and 1197 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:22:19,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:22:19,697 INFO L93 Difference]: Finished difference Result 1912 states and 2769 transitions. [2024-11-28 04:22:19,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:22:19,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 174 [2024-11-28 04:22:19,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:22:19,715 INFO L225 Difference]: With dead ends: 1912 [2024-11-28 04:22:19,715 INFO L226 Difference]: Without dead ends: 1129 [2024-11-28 04:22:19,721 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 [2024-11-28 04:22:19,725 INFO L435 NwaCegarLoop]: 1257 mSDtfsCounter, 475 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:22:19,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 2364 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:22:19,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2024-11-28 04:22:19,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1126. [2024-11-28 04:22:19,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 806 states have (on average 1.3870967741935485) internal successors, (1118), 853 states have internal predecessors, (1118), 253 states have call successors, (253), 67 states have call predecessors, (253), 66 states have return successors, (252), 237 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-28 04:22:19,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1623 transitions. [2024-11-28 04:22:19,866 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1623 transitions. Word has length 174 [2024-11-28 04:22:19,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:22:19,868 INFO L471 AbstractCegarLoop]: Abstraction has 1126 states and 1623 transitions. [2024-11-28 04:22:19,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:22:19,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1623 transitions. [2024-11-28 04:22:19,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-28 04:22:19,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:22:19,878 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:22:19,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:22:19,878 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:22:19,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:22:19,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1926230435, now seen corresponding path program 1 times [2024-11-28 04:22:19,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:22:19,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141478319] [2024-11-28 04:22:19,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:22:19,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:22:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:22:20,626 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-28 04:22:20,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:22:20,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141478319] [2024-11-28 04:22:20,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141478319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:22:20,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:22:20,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:22:20,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248914881] [2024-11-28 04:22:20,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:22:20,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:22:20,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:22:20,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:22:20,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:22:20,632 INFO L87 Difference]: Start difference. First operand 1126 states and 1623 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:22:24,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:22:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:22:28,305 INFO L93 Difference]: Finished difference Result 5408 states and 8178 transitions. [2024-11-28 04:22:28,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:22:28,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 184 [2024-11-28 04:22:28,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:22:28,349 INFO L225 Difference]: With dead ends: 5408 [2024-11-28 04:22:28,349 INFO L226 Difference]: Without dead ends: 4331 [2024-11-28 04:22:28,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:22:28,360 INFO L435 NwaCegarLoop]: 1377 mSDtfsCounter, 4197 mSDsluCounter, 3861 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 314 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4197 SdHoareTripleChecker+Valid, 5238 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:22:28,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4197 Valid, 5238 Invalid, 1092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [314 Valid, 777 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2024-11-28 04:22:28,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4331 states. [2024-11-28 04:22:28,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4331 to 4315. [2024-11-28 04:22:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4315 states, 3114 states have (on average 1.390815671162492) internal successors, (4331), 3291 states have internal predecessors, (4331), 949 states have call successors, (949), 254 states have call predecessors, (949), 251 states have return successors, (1151), 891 states have call predecessors, (1151), 948 states have call successors, (1151) [2024-11-28 04:22:28,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 6431 transitions. [2024-11-28 04:22:28,702 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 6431 transitions. Word has length 184 [2024-11-28 04:22:28,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:22:28,703 INFO L471 AbstractCegarLoop]: Abstraction has 4315 states and 6431 transitions. [2024-11-28 04:22:28,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:22:28,703 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 6431 transitions. [2024-11-28 04:22:28,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-28 04:22:28,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:22:28,707 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:22:28,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:22:28,708 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:22:28,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:22:28,708 INFO L85 PathProgramCache]: Analyzing trace with hash 474115636, now seen corresponding path program 1 times [2024-11-28 04:22:28,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:22:28,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318690580] [2024-11-28 04:22:28,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:22:28,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:22:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:22:29,354 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-28 04:22:29,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:22:29,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318690580] [2024-11-28 04:22:29,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318690580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:22:29,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:22:29,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:22:29,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807528112] [2024-11-28 04:22:29,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:22:29,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:22:29,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:22:29,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:22:29,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:22:29,357 INFO L87 Difference]: Start difference. First operand 4315 states and 6431 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:22:31,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:22:34,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:22:34,848 INFO L93 Difference]: Finished difference Result 21331 states and 33815 transitions. [2024-11-28 04:22:34,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:22:34,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 185 [2024-11-28 04:22:34,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:22:34,988 INFO L225 Difference]: With dead ends: 21331 [2024-11-28 04:22:34,989 INFO L226 Difference]: Without dead ends: 17065 [2024-11-28 04:22:35,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:22:35,071 INFO L435 NwaCegarLoop]: 1224 mSDtfsCounter, 4256 mSDsluCounter, 3853 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4256 SdHoareTripleChecker+Valid, 5077 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:22:35,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4256 Valid, 5077 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 04:22:35,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17065 states. [2024-11-28 04:22:36,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17065 to 17052. [2024-11-28 04:22:36,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17052 states, 12342 states have (on average 1.388510776211311) internal successors, (17137), 13022 states have internal predecessors, (17137), 3718 states have call successors, (3718), 1004 states have call predecessors, (3718), 991 states have return successors, (5609), 3507 states have call predecessors, (5609), 3717 states have call successors, (5609) [2024-11-28 04:22:36,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17052 states to 17052 states and 26464 transitions. [2024-11-28 04:22:36,458 INFO L78 Accepts]: Start accepts. Automaton has 17052 states and 26464 transitions. Word has length 185 [2024-11-28 04:22:36,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:22:36,461 INFO L471 AbstractCegarLoop]: Abstraction has 17052 states and 26464 transitions. [2024-11-28 04:22:36,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:22:36,461 INFO L276 IsEmpty]: Start isEmpty. Operand 17052 states and 26464 transitions. [2024-11-28 04:22:36,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-28 04:22:36,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:22:36,466 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:22:36,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:22:36,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:22:36,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:22:36,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1128706811, now seen corresponding path program 1 times [2024-11-28 04:22:36,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:22:36,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139368672] [2024-11-28 04:22:36,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:22:36,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:22:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:22:36,965 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-28 04:22:36,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:22:36,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139368672] [2024-11-28 04:22:36,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139368672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:22:36,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:22:36,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:22:36,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526136260] [2024-11-28 04:22:36,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:22:36,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:22:36,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:22:36,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:22:36,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:22:36,971 INFO L87 Difference]: Start difference. First operand 17052 states and 26464 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:22:40,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:22:46,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:22:46,840 INFO L93 Difference]: Finished difference Result 84944 states and 142614 transitions. [2024-11-28 04:22:46,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:22:46,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 186 [2024-11-28 04:22:46,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:22:47,521 INFO L225 Difference]: With dead ends: 84944 [2024-11-28 04:22:47,521 INFO L226 Difference]: Without dead ends: 67941 [2024-11-28 04:22:47,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:22:47,696 INFO L435 NwaCegarLoop]: 1230 mSDtfsCounter, 4264 mSDsluCounter, 3856 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 348 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4264 SdHoareTripleChecker+Valid, 5086 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:22:47,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4264 Valid, 5086 Invalid, 1117 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [348 Valid, 768 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2024-11-28 04:22:47,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67941 states. [2024-11-28 04:22:52,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67941 to 67924. [2024-11-28 04:22:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67924 states, 49250 states have (on average 1.3851167512690354) internal successors, (68217), 51870 states have internal predecessors, (68217), 14722 states have call successors, (14722), 4004 states have call predecessors, (14722), 3951 states have return successors, (27995), 13971 states have call predecessors, (27995), 14721 states have call successors, (27995) [2024-11-28 04:22:52,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67924 states to 67924 states and 110934 transitions. [2024-11-28 04:22:52,974 INFO L78 Accepts]: Start accepts. Automaton has 67924 states and 110934 transitions. Word has length 186 [2024-11-28 04:22:52,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:22:52,974 INFO L471 AbstractCegarLoop]: Abstraction has 67924 states and 110934 transitions. [2024-11-28 04:22:52,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:22:52,976 INFO L276 IsEmpty]: Start isEmpty. Operand 67924 states and 110934 transitions. [2024-11-28 04:22:52,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 04:22:52,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:22:52,981 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:22:52,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:22:52,982 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:22:52,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:22:52,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2019265564, now seen corresponding path program 1 times [2024-11-28 04:22:52,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:22:52,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503310954] [2024-11-28 04:22:52,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:22:52,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:22:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:22:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-28 04:22:53,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:22:53,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503310954] [2024-11-28 04:22:53,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503310954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:22:53,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:22:53,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:22:53,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584794472] [2024-11-28 04:22:53,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:22:53,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:22:53,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:22:53,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:22:53,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:22:53,487 INFO L87 Difference]: Start difference. First operand 67924 states and 110934 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:22:57,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:23:11,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:23:11,687 INFO L93 Difference]: Finished difference Result 334176 states and 594653 transitions. [2024-11-28 04:23:11,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:23:11,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 187 [2024-11-28 04:23:11,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:23:14,947 INFO L225 Difference]: With dead ends: 334176 [2024-11-28 04:23:14,947 INFO L226 Difference]: Without dead ends: 266301 [2024-11-28 04:23:15,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:23:15,657 INFO L435 NwaCegarLoop]: 1218 mSDtfsCounter, 4365 mSDsluCounter, 3468 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 465 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4365 SdHoareTripleChecker+Valid, 4686 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:23:15,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4365 Valid, 4686 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 1060 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2024-11-28 04:23:15,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266301 states.