/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-04 17:20:44,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-04 17:20:44,169 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-04 17:20:44,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-04 17:20:44,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-04 17:20:44,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-04 17:20:44,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-04 17:20:44,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-04 17:20:44,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-04 17:20:44,204 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-04 17:20:44,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-04 17:20:44,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-04 17:20:44,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-04 17:20:44,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-04 17:20:44,206 INFO L153 SettingsManager]: * Use SBE=true [2024-11-04 17:20:44,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-04 17:20:44,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-04 17:20:44,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-04 17:20:44,207 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-04 17:20:44,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-04 17:20:44,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-04 17:20:44,208 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-04 17:20:44,209 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-04 17:20:44,209 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-04 17:20:44,209 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-04 17:20:44,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-04 17:20:44,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-04 17:20:44,210 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-04 17:20:44,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-04 17:20:44,211 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-04 17:20:44,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-04 17:20:44,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 17:20:44,211 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-04 17:20:44,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-04 17:20:44,212 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-04 17:20:44,212 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-04 17:20:44,213 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-04 17:20:44,213 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-04 17:20:44,213 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-04 17:20:44,213 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-04 17:20:44,214 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-04 17:20:44,214 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-04 17:20:44,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-04 17:20:44,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-04 17:20:44,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-04 17:20:44,466 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-04 17:20:44,467 INFO L274 PluginConnector]: CDTParser initialized [2024-11-04 17:20:44,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-04 17:20:45,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-04 17:20:46,271 INFO L384 CDTParser]: Found 1 translation units. [2024-11-04 17:20:46,272 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-04 17:20:46,308 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f751e37b9/c158e4741cc640b48a13eaa1fe123bec/FLAG4b763ac18 [2024-11-04 17:20:46,457 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f751e37b9/c158e4741cc640b48a13eaa1fe123bec [2024-11-04 17:20:46,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-04 17:20:46,461 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-04 17:20:46,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-04 17:20:46,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-04 17:20:46,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-04 17:20:46,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:20:46" (1/1) ... [2024-11-04 17:20:46,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1979c198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:46, skipping insertion in model container [2024-11-04 17:20:46,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:20:46" (1/1) ... [2024-11-04 17:20:46,560 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 17:20:47,212 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,224 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,235 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,242 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,244 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,255 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,263 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,269 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,271 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,276 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,281 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,281 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,285 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,286 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,286 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,292 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,294 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,294 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,323 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2024-11-04 17:20:47,337 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,337 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,360 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 17:20:47,396 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-04 17:20:47,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 17:20:47,488 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,492 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,494 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,496 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,497 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,500 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,501 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,502 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,502 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,505 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,511 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,511 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,514 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,515 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,515 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,516 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,516 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,517 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,524 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2024-11-04 17:20:47,530 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,531 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,538 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 17:20:47,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 17:20:47,556 INFO L200 MainTranslator]: Completed pre-run [2024-11-04 17:20:47,746 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2024-11-04 17:20:47,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 17:20:47,810 INFO L204 MainTranslator]: Completed translation [2024-11-04 17:20:47,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47 WrapperNode [2024-11-04 17:20:47,812 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-04 17:20:47,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-04 17:20:47,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-04 17:20:47,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-04 17:20:47,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (1/1) ... [2024-11-04 17:20:47,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (1/1) ... [2024-11-04 17:20:47,922 INFO L138 Inliner]: procedures = 88, calls = 266, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 935 [2024-11-04 17:20:47,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-04 17:20:47,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-04 17:20:47,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-04 17:20:47,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-04 17:20:47,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (1/1) ... [2024-11-04 17:20:47,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (1/1) ... [2024-11-04 17:20:47,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (1/1) ... [2024-11-04 17:20:48,060 INFO L175 MemorySlicer]: Split 160 memory accesses to 6 slices as follows [2, 42, 6, 82, 8, 20]. 51 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 0, 6, 6, 8, 1]. The 103 writes are split as follows [0, 42, 0, 42, 0, 19]. [2024-11-04 17:20:48,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (1/1) ... [2024-11-04 17:20:48,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (1/1) ... [2024-11-04 17:20:48,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (1/1) ... [2024-11-04 17:20:48,115 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (1/1) ... [2024-11-04 17:20:48,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (1/1) ... [2024-11-04 17:20:48,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (1/1) ... [2024-11-04 17:20:48,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-04 17:20:48,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-04 17:20:48,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-04 17:20:48,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-04 17:20:48,176 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (1/1) ... [2024-11-04 17:20:48,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 17:20:48,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 17:20:48,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-04 17:20:48,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-04 17:20:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_init [2024-11-04 17:20:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_init [2024-11-04 17:20:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-04 17:20:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-04 17:20:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-04 17:20:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-04 17:20:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-04 17:20:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-04 17:20:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-04 17:20:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-04 17:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-04 17:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-04 17:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-04 17:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-04 17:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-04 17:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-04 17:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-04 17:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-04 17:20:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-04 17:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_exit [2024-11-04 17:20:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_exit [2024-11-04 17:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-04 17:20:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-04 17:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-04 17:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-04 17:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-04 17:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-04 17:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-04 17:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-04 17:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-04 17:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-04 17:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-04 17:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-04 17:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-04 17:20:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-04 17:20:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-04 17:20:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-04 17:20:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-04 17:20:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-04 17:20:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-04 17:20:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-04 17:20:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-04 17:20:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-04 17:20:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-04 17:20:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-04 17:20:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-04 17:20:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-04 17:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-04 17:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-04 17:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-04 17:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-04 17:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-04 17:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-04 17:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-04 17:20:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-04 17:20:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-04 17:20:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-04 17:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-04 17:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-04 17:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-04 17:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-04 17:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-04 17:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-04 17:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-04 17:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-04 17:20:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-11-04 17:20:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-04 17:20:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-04 17:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-04 17:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-04 17:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-04 17:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-04 17:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-04 17:20:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-04 17:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-04 17:20:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-04 17:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-04 17:20:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-04 17:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-04 17:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-04 17:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-04 17:20:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-04 17:20:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-04 17:20:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-04 17:20:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-04 17:20:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-04 17:20:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-04 17:20:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-04 17:20:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-04 17:20:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-04 17:20:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-04 17:20:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-04 17:20:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2024-11-04 17:20:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2024-11-04 17:20:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-04 17:20:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-04 17:20:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#2 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#3 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#4 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#5 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-04 17:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-04 17:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-04 17:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-04 17:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-04 17:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-04 17:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-04 17:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-04 17:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-04 17:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#5 [2024-11-04 17:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-04 17:20:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-04 17:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2024-11-04 17:20:48,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2024-11-04 17:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-04 17:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-04 17:20:48,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-04 17:20:48,591 INFO L238 CfgBuilder]: Building ICFG [2024-11-04 17:20:48,594 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-04 17:20:48,697 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2024-11-04 17:20:48,782 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-04 17:21:06,031 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2024-11-04 17:21:06,032 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2024-11-04 17:21:06,122 INFO L? ?]: Removed 258 outVars from TransFormulas that were not future-live. [2024-11-04 17:21:06,123 INFO L287 CfgBuilder]: Performing block encoding [2024-11-04 17:21:06,140 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-04 17:21:06,140 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-04 17:21:06,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:21:06 BoogieIcfgContainer [2024-11-04 17:21:06,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-04 17:21:06,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-04 17:21:06,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-04 17:21:06,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-04 17:21:06,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 05:20:46" (1/3) ... [2024-11-04 17:21:06,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73648f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:21:06, skipping insertion in model container [2024-11-04 17:21:06,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:47" (2/3) ... [2024-11-04 17:21:06,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73648f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:21:06, skipping insertion in model container [2024-11-04 17:21:06,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:21:06" (3/3) ... [2024-11-04 17:21:06,150 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-04 17:21:06,164 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-04 17:21:06,164 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-04 17:21:06,221 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-04 17:21:06,226 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;@43484400, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-04 17:21:06,227 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-04 17:21:06,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 123 states have (on average 1.3252032520325203) internal successors, (163), 131 states have internal predecessors, (163), 30 states have call successors, (30), 15 states have call predecessors, (30), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-04 17:21:06,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-04 17:21:06,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 17:21:06,239 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 17:21:06,240 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 17:21:06,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 17:21:06,245 INFO L85 PathProgramCache]: Analyzing trace with hash 670907355, now seen corresponding path program 1 times [2024-11-04 17:21:06,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 17:21:06,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079493768] [2024-11-04 17:21:06,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 17:21:06,256 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 17:21:06,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 17:21:06,261 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 17:21:06,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-04 17:21:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 17:21:09,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-04 17:21:09,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 17:21:10,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 17:21:10,363 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 17:21:11,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 17:21:11,016 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 17:21:11,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079493768] [2024-11-04 17:21:11,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2079493768] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 17:21:11,017 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 17:21:11,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-04 17:21:11,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832807440] [2024-11-04 17:21:11,019 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 17:21:11,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-04 17:21:11,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 17:21:11,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-04 17:21:11,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 17:21:11,050 INFO L87 Difference]: Start difference. First operand has 169 states, 123 states have (on average 1.3252032520325203) internal successors, (163), 131 states have internal predecessors, (163), 30 states have call successors, (30), 15 states have call predecessors, (30), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-04 17:21:11,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 17:21:11,424 INFO L93 Difference]: Finished difference Result 455 states and 615 transitions. [2024-11-04 17:21:11,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-04 17:21:11,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-04 17:21:11,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 17:21:11,437 INFO L225 Difference]: With dead ends: 455 [2024-11-04 17:21:11,437 INFO L226 Difference]: Without dead ends: 294 [2024-11-04 17:21:11,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 17:21:11,443 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 184 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-04 17:21:11,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 402 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-04 17:21:11,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-04 17:21:11,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 290. [2024-11-04 17:21:11,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 215 states have (on average 1.2232558139534884) internal successors, (263), 219 states have internal predecessors, (263), 50 states have call successors, (50), 25 states have call predecessors, (50), 24 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-04 17:21:11,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 359 transitions. [2024-11-04 17:21:11,512 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 359 transitions. Word has length 17 [2024-11-04 17:21:11,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 17:21:11,513 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 359 transitions. [2024-11-04 17:21:11,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-04 17:21:11,513 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 359 transitions. [2024-11-04 17:21:11,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-04 17:21:11,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 17:21:11,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 17:21:11,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-04 17:21:11,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 17:21:11,715 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 17:21:11,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 17:21:11,716 INFO L85 PathProgramCache]: Analyzing trace with hash -676819130, now seen corresponding path program 1 times [2024-11-04 17:21:11,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 17:21:11,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465627449] [2024-11-04 17:21:11,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 17:21:11,716 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 17:21:11,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 17:21:11,718 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 17:21:11,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-04 17:21:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 17:21:14,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-04 17:21:14,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 17:21:15,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 17:21:15,212 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 17:21:15,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 17:21:15,894 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 17:21:15,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465627449] [2024-11-04 17:21:15,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [465627449] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 17:21:15,894 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 17:21:15,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-04 17:21:15,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3623050] [2024-11-04 17:21:15,895 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 17:21:15,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-04 17:21:15,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 17:21:15,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-04 17:21:15,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 17:21:15,897 INFO L87 Difference]: Start difference. First operand 290 states and 359 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-04 17:21:16,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 17:21:16,191 INFO L93 Difference]: Finished difference Result 831 states and 1038 transitions. [2024-11-04 17:21:16,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-04 17:21:16,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-04 17:21:16,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 17:21:16,196 INFO L225 Difference]: With dead ends: 831 [2024-11-04 17:21:16,196 INFO L226 Difference]: Without dead ends: 551 [2024-11-04 17:21:16,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-04 17:21:16,199 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 174 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-04 17:21:16,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 414 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-04 17:21:16,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-04 17:21:16,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 544. [2024-11-04 17:21:16,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 405 states have (on average 1.217283950617284) internal successors, (493), 408 states have internal predecessors, (493), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-04 17:21:16,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 675 transitions. [2024-11-04 17:21:16,259 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 675 transitions. Word has length 18 [2024-11-04 17:21:16,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 17:21:16,259 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 675 transitions. [2024-11-04 17:21:16,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-04 17:21:16,259 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 675 transitions. [2024-11-04 17:21:16,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-04 17:21:16,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 17:21:16,265 INFO L215 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] [2024-11-04 17:21:16,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-04 17:21:16,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 17:21:16,466 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 17:21:16,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 17:21:16,466 INFO L85 PathProgramCache]: Analyzing trace with hash -510037692, now seen corresponding path program 1 times [2024-11-04 17:21:16,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 17:21:16,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482489076] [2024-11-04 17:21:16,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 17:21:16,467 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 17:21:16,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 17:21:16,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 17:21:16,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-04 17:21:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 17:21:18,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-04 17:21:18,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 17:21:20,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 17:21:20,189 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 17:21:22,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 17:21:22,009 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 17:21:22,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482489076] [2024-11-04 17:21:22,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1482489076] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 17:21:22,010 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 17:21:22,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2024-11-04 17:21:22,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646450857] [2024-11-04 17:21:22,010 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 17:21:22,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-04 17:21:22,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 17:21:22,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-04 17:21:22,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-04 17:21:22,012 INFO L87 Difference]: Start difference. First operand 544 states and 675 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-04 17:21:22,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 17:21:22,749 INFO L93 Difference]: Finished difference Result 1075 states and 1336 transitions. [2024-11-04 17:21:22,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-04 17:21:22,751 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 51 [2024-11-04 17:21:22,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 17:21:22,757 INFO L225 Difference]: With dead ends: 1075 [2024-11-04 17:21:22,757 INFO L226 Difference]: Without dead ends: 544 [2024-11-04 17:21:22,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-04 17:21:22,762 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 0 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-04 17:21:22,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 948 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-04 17:21:22,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-04 17:21:22,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2024-11-04 17:21:22,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 405 states have (on average 1.2148148148148148) internal successors, (492), 408 states have internal predecessors, (492), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-04 17:21:22,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 674 transitions. [2024-11-04 17:21:22,806 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 674 transitions. Word has length 51 [2024-11-04 17:21:22,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 17:21:22,807 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 674 transitions. [2024-11-04 17:21:22,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-04 17:21:22,807 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 674 transitions. [2024-11-04 17:21:22,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-04 17:21:22,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 17:21:22,809 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 17:21:22,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-04 17:21:23,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 17:21:23,010 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 17:21:23,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 17:21:23,011 INFO L85 PathProgramCache]: Analyzing trace with hash -898306559, now seen corresponding path program 1 times [2024-11-04 17:21:23,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 17:21:23,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965809703] [2024-11-04 17:21:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 17:21:23,011 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 17:21:23,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 17:21:23,012 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 17:21:23,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-04 17:21:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 17:21:25,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-04 17:21:25,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 17:21:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 17:21:25,816 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 17:21:28,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 17:21:28,013 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 17:21:28,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965809703] [2024-11-04 17:21:28,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [965809703] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 17:21:28,013 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 17:21:28,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-04 17:21:28,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926175509] [2024-11-04 17:21:28,013 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 17:21:28,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-04 17:21:28,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 17:21:28,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-04 17:21:28,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-04 17:21:28,015 INFO L87 Difference]: Start difference. First operand 544 states and 674 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-04 17:21:29,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 17:21:29,083 INFO L93 Difference]: Finished difference Result 1154 states and 1464 transitions. [2024-11-04 17:21:29,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-04 17:21:29,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 56 [2024-11-04 17:21:29,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 17:21:29,088 INFO L225 Difference]: With dead ends: 1154 [2024-11-04 17:21:29,088 INFO L226 Difference]: Without dead ends: 627 [2024-11-04 17:21:29,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-04 17:21:29,091 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 68 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-04 17:21:29,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 430 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-04 17:21:29,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-11-04 17:21:29,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 615. [2024-11-04 17:21:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 476 states have (on average 1.245798319327731) internal successors, (593), 479 states have internal predecessors, (593), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-04 17:21:29,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 775 transitions. [2024-11-04 17:21:29,125 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 775 transitions. Word has length 56 [2024-11-04 17:21:29,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 17:21:29,126 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 775 transitions. [2024-11-04 17:21:29,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-04 17:21:29,126 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 775 transitions. [2024-11-04 17:21:29,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-04 17:21:29,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 17:21:29,129 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-04 17:21:29,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-04 17:21:29,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 17:21:29,330 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 17:21:29,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 17:21:29,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1505413123, now seen corresponding path program 1 times [2024-11-04 17:21:29,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 17:21:29,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371350570] [2024-11-04 17:21:29,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 17:21:29,331 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 17:21:29,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 17:21:29,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 17:21:29,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-04 17:21:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 17:21:32,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-04 17:21:32,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 17:21:37,541 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-04 17:21:37,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 17:21:44,699 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-04 17:21:44,700 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 17:21:44,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371350570] [2024-11-04 17:21:44,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [371350570] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-04 17:21:44,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-04 17:21:44,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2024-11-04 17:21:44,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567681513] [2024-11-04 17:21:44,700 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-04 17:21:44,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-04 17:21:44,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 17:21:44,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-04 17:21:44,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-04 17:21:44,702 INFO L87 Difference]: Start difference. First operand 615 states and 775 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-04 17:21:49,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-04 17:21:53,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-04 17:21:55,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-04 17:21:56,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 17:21:56,008 INFO L93 Difference]: Finished difference Result 1280 states and 1628 transitions. [2024-11-04 17:21:56,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-04 17:21:56,009 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 91 [2024-11-04 17:21:56,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 17:21:56,016 INFO L225 Difference]: With dead ends: 1280 [2024-11-04 17:21:56,016 INFO L226 Difference]: Without dead ends: 683 [2024-11-04 17:21:56,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-04 17:21:56,022 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 4 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2024-11-04 17:21:56,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1483 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time] [2024-11-04 17:21:56,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-04 17:21:56,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 663. [2024-11-04 17:21:56,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 512 states have (on average 1.228515625) internal successors, (629), 515 states have internal predecessors, (629), 97 states have call successors, (97), 46 states have call predecessors, (97), 53 states have return successors, (117), 101 states have call predecessors, (117), 93 states have call successors, (117) [2024-11-04 17:21:56,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 843 transitions. [2024-11-04 17:21:56,067 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 843 transitions. Word has length 91 [2024-11-04 17:21:56,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 17:21:56,067 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 843 transitions. [2024-11-04 17:21:56,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-04 17:21:56,068 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 843 transitions. [2024-11-04 17:21:56,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-04 17:21:56,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 17:21:56,074 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 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] [2024-11-04 17:21:56,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-04 17:21:56,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 17:21:56,275 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 17:21:56,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 17:21:56,276 INFO L85 PathProgramCache]: Analyzing trace with hash 981706652, now seen corresponding path program 1 times [2024-11-04 17:21:56,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 17:21:56,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208479289] [2024-11-04 17:21:56,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 17:21:56,276 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 17:21:56,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 17:21:56,278 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 17:21:56,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-04 17:21:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 17:21:59,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-04 17:21:59,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 17:22:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-04 17:22:05,710 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 17:22:13,659 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-04 17:22:13,659 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 17:22:13,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208479289] [2024-11-04 17:22:13,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1208479289] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-04 17:22:13,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-04 17:22:13,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 10 [2024-11-04 17:22:13,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992240670] [2024-11-04 17:22:13,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-04 17:22:13,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-04 17:22:13,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 17:22:13,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-04 17:22:13,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-04 17:22:13,661 INFO L87 Difference]: Start difference. First operand 663 states and 843 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9)