/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:09:41,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:09:41,422 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 01:09:41,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:09:41,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:09:41,448 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:09:41,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:09:41,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:09:41,449 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:09:41,460 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:09:41,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:09:41,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:09:41,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:09:41,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:09:41,461 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:09:41,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:09:41,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:09:41,462 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:09:41,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:09:41,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:09:41,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:09:41,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:09:41,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:09:41,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:09:41,463 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:09:41,463 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:09:41,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:09:41,464 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:09:41,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:09:41,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:09:41,465 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:09:41,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:09:41,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:09:41,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:09:41,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:09:41,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:09:41,466 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:09:41,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:09:41,466 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:09:41,466 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:09:41,466 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:09:41,466 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:09:41,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:09:41,467 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:09:41,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:09:41,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:09:41,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:09:41,683 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:09:41,683 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:09:41,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-2.c [2023-12-16 01:09:42,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:09:43,056 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:09:43,057 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-2.c [2023-12-16 01:09:43,069 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8ae18fd3/04a63d10f5e043fba9e13d8ac6be37ed/FLAG9cca085fe [2023-12-16 01:09:43,085 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8ae18fd3/04a63d10f5e043fba9e13d8ac6be37ed [2023-12-16 01:09:43,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:09:43,088 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:09:43,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:09:43,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:09:43,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:09:43,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d59118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43, skipping insertion in model container [2023-12-16 01:09:43,100 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:09:43,245 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-2.c[914,927] [2023-12-16 01:09:43,299 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-2.c[7115,7128] [2023-12-16 01:09:43,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:09:43,407 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:09:43,415 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-2.c[914,927] [2023-12-16 01:09:43,425 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-2.c[7115,7128] [2023-12-16 01:09:43,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:09:43,481 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:09:43,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43 WrapperNode [2023-12-16 01:09:43,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:09:43,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:09:43,483 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:09:43,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:09:43,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,548 INFO L138 Inliner]: procedures = 79, calls = 96, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 1128 [2023-12-16 01:09:43,549 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:09:43,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:09:43,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:09:43,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:09:43,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,566 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,594 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 01:09:43,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,620 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:09:43,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:09:43,639 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:09:43,639 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:09:43,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (1/1) ... [2023-12-16 01:09:43,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:09:43,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:09:43,702 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) [2023-12-16 01:09:43,723 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 [2023-12-16 01:09:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:09:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 01:09:43,729 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 01:09:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 01:09:43,730 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 01:09:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 01:09:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 01:09:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 01:09:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 01:09:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 01:09:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 01:09:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 01:09:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 01:09:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 01:09:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 01:09:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 01:09:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 01:09:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 01:09:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 01:09:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 01:09:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 01:09:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 01:09:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 01:09:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:09:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 01:09:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 01:09:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 01:09:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 01:09:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:09:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:09:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 01:09:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 01:09:43,837 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:09:43,838 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:09:44,535 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:09:44,576 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:09:44,576 INFO L309 CfgBuilder]: Removed 20 assume(true) statements. [2023-12-16 01:09:44,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:09:44 BoogieIcfgContainer [2023-12-16 01:09:44,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:09:44,578 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:09:44,578 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:09:44,581 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:09:44,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:09:43" (1/3) ... [2023-12-16 01:09:44,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232117d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:09:44, skipping insertion in model container [2023-12-16 01:09:44,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:09:43" (2/3) ... [2023-12-16 01:09:44,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232117d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:09:44, skipping insertion in model container [2023-12-16 01:09:44,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:09:44" (3/3) ... [2023-12-16 01:09:44,583 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.13.cil-2.c [2023-12-16 01:09:44,596 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:09:44,596 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 01:09:44,697 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:09:44,715 INFO L357 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, mHoare=true, 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;@6f3dd6a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:09:44,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 01:09:44,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 462 states, 404 states have (on average 1.7178217821782178) internal successors, (694), 410 states have internal predecessors, (694), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-16 01:09:44,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:09:44,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:44,729 INFO L195 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, 1, 1] [2023-12-16 01:09:44,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:44,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:44,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1799041026, now seen corresponding path program 1 times [2023-12-16 01:09:44,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:44,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832251230] [2023-12-16 01:09:44,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:44,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:45,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:45,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:45,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:45,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:45,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:45,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:45,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:45,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832251230] [2023-12-16 01:09:45,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832251230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:45,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:45,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:09:45,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182942935] [2023-12-16 01:09:45,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:45,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:09:45,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:45,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:09:45,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:09:45,171 INFO L87 Difference]: Start difference. First operand has 462 states, 404 states have (on average 1.7178217821782178) internal successors, (694), 410 states have internal predecessors, (694), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:09:46,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:46,257 INFO L93 Difference]: Finished difference Result 1023 states and 1701 transitions. [2023-12-16 01:09:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:09:46,259 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2023-12-16 01:09:46,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:46,288 INFO L225 Difference]: With dead ends: 1023 [2023-12-16 01:09:46,288 INFO L226 Difference]: Without dead ends: 582 [2023-12-16 01:09:46,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:46,294 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 1555 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:46,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 1596 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:09:46,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-12-16 01:09:46,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 545. [2023-12-16 01:09:46,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 469 states have (on average 1.5863539445628998) internal successors, (744), 475 states have internal predecessors, (744), 52 states have call successors, (52), 21 states have call predecessors, (52), 22 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2023-12-16 01:09:46,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 851 transitions. [2023-12-16 01:09:46,355 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 851 transitions. Word has length 58 [2023-12-16 01:09:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:46,356 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 851 transitions. [2023-12-16 01:09:46,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:09:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 851 transitions. [2023-12-16 01:09:46,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:09:46,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:46,358 INFO L195 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, 1, 1] [2023-12-16 01:09:46,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:09:46,359 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:46,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:46,359 INFO L85 PathProgramCache]: Analyzing trace with hash 489024261, now seen corresponding path program 1 times [2023-12-16 01:09:46,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:46,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187949049] [2023-12-16 01:09:46,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:46,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:46,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:46,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:46,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:46,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:46,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:46,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:46,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:46,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187949049] [2023-12-16 01:09:46,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187949049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:46,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:46,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:09:46,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500043406] [2023-12-16 01:09:46,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:46,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:09:46,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:46,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:09:46,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:09:46,501 INFO L87 Difference]: Start difference. First operand 545 states and 851 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:09:48,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:48,314 INFO L93 Difference]: Finished difference Result 741 states and 1127 transitions. [2023-12-16 01:09:48,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 01:09:48,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-16 01:09:48,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:48,318 INFO L225 Difference]: With dead ends: 741 [2023-12-16 01:09:48,319 INFO L226 Difference]: Without dead ends: 579 [2023-12-16 01:09:48,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:09:48,320 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 976 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 2184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:48,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 2256 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 2184 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:09:48,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-12-16 01:09:48,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 549. [2023-12-16 01:09:48,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 472 states have (on average 1.5805084745762712) internal successors, (746), 478 states have internal predecessors, (746), 52 states have call successors, (52), 21 states have call predecessors, (52), 23 states have return successors, (56), 52 states have call predecessors, (56), 50 states have call successors, (56) [2023-12-16 01:09:48,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 854 transitions. [2023-12-16 01:09:48,361 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 854 transitions. Word has length 58 [2023-12-16 01:09:48,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:48,361 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 854 transitions. [2023-12-16 01:09:48,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:09:48,362 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 854 transitions. [2023-12-16 01:09:48,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:09:48,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:48,363 INFO L195 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, 1, 1] [2023-12-16 01:09:48,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:09:48,363 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:48,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:48,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1754959037, now seen corresponding path program 1 times [2023-12-16 01:09:48,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:48,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880888050] [2023-12-16 01:09:48,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:48,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:48,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:48,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880888050] [2023-12-16 01:09:48,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880888050] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:48,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:48,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 01:09:48,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580895684] [2023-12-16 01:09:48,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:48,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:09:48,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:48,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:09:48,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:09:48,629 INFO L87 Difference]: Start difference. First operand 549 states and 854 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-16 01:09:50,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:50,835 INFO L93 Difference]: Finished difference Result 1382 states and 2006 transitions. [2023-12-16 01:09:50,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-16 01:09:50,836 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 58 [2023-12-16 01:09:50,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:50,840 INFO L225 Difference]: With dead ends: 1382 [2023-12-16 01:09:50,840 INFO L226 Difference]: Without dead ends: 1204 [2023-12-16 01:09:50,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 01:09:50,842 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 3613 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 537 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3629 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 2639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 537 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:50,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3629 Valid, 2352 Invalid, 2639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [537 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 01:09:50,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2023-12-16 01:09:50,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1087. [2023-12-16 01:09:50,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 891 states have (on average 1.4781144781144782) internal successors, (1317), 905 states have internal predecessors, (1317), 109 states have call successors, (109), 74 states have call predecessors, (109), 85 states have return successors, (125), 109 states have call predecessors, (125), 107 states have call successors, (125) [2023-12-16 01:09:50,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1551 transitions. [2023-12-16 01:09:50,913 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1551 transitions. Word has length 58 [2023-12-16 01:09:50,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:50,913 INFO L495 AbstractCegarLoop]: Abstraction has 1087 states and 1551 transitions. [2023-12-16 01:09:50,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-16 01:09:50,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1551 transitions. [2023-12-16 01:09:50,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 01:09:50,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:50,918 INFO L195 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, 1, 1, 1] [2023-12-16 01:09:50,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:09:50,918 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:50,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:50,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1828138021, now seen corresponding path program 1 times [2023-12-16 01:09:50,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:50,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57794427] [2023-12-16 01:09:50,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:50,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:50,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:51,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:51,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:51,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:51,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:51,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:51,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:51,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:51,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:51,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57794427] [2023-12-16 01:09:51,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57794427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:51,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:51,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:09:51,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951390694] [2023-12-16 01:09:51,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:51,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:09:51,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:51,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:09:51,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:09:51,073 INFO L87 Difference]: Start difference. First operand 1087 states and 1551 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:09:52,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:52,335 INFO L93 Difference]: Finished difference Result 1901 states and 2627 transitions. [2023-12-16 01:09:52,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 01:09:52,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2023-12-16 01:09:52,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:52,342 INFO L225 Difference]: With dead ends: 1901 [2023-12-16 01:09:52,342 INFO L226 Difference]: Without dead ends: 1191 [2023-12-16 01:09:52,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:52,349 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 657 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 2351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:52,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 2543 Invalid, 2351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 01:09:52,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2023-12-16 01:09:52,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1103. [2023-12-16 01:09:52,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 903 states have (on average 1.4662236987818382) internal successors, (1324), 917 states have internal predecessors, (1324), 109 states have call successors, (109), 74 states have call predecessors, (109), 89 states have return successors, (129), 113 states have call predecessors, (129), 107 states have call successors, (129) [2023-12-16 01:09:52,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1562 transitions. [2023-12-16 01:09:52,399 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1562 transitions. Word has length 59 [2023-12-16 01:09:52,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:52,403 INFO L495 AbstractCegarLoop]: Abstraction has 1103 states and 1562 transitions. [2023-12-16 01:09:52,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:09:52,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1562 transitions. [2023-12-16 01:09:52,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 01:09:52,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:52,405 INFO L195 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, 1, 1, 1] [2023-12-16 01:09:52,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:09:52,405 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:52,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:52,406 INFO L85 PathProgramCache]: Analyzing trace with hash 95090013, now seen corresponding path program 1 times [2023-12-16 01:09:52,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:52,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201987414] [2023-12-16 01:09:52,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:52,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:52,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:52,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:52,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:52,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:52,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:52,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:52,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:52,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:52,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:52,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201987414] [2023-12-16 01:09:52,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201987414] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:52,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:52,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:09:52,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687314837] [2023-12-16 01:09:52,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:52,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:09:52,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:52,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:09:52,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:09:52,609 INFO L87 Difference]: Start difference. First operand 1103 states and 1562 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:09:54,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:54,370 INFO L93 Difference]: Finished difference Result 2543 states and 3381 transitions. [2023-12-16 01:09:54,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 01:09:54,371 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2023-12-16 01:09:54,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:54,377 INFO L225 Difference]: With dead ends: 2543 [2023-12-16 01:09:54,377 INFO L226 Difference]: Without dead ends: 1818 [2023-12-16 01:09:54,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2023-12-16 01:09:54,380 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1780 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:54,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 1566 Invalid, 1859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:09:54,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2023-12-16 01:09:54,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1516. [2023-12-16 01:09:54,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1221 states have (on average 1.4234234234234233) internal successors, (1738), 1244 states have internal predecessors, (1738), 155 states have call successors, (155), 113 states have call predecessors, (155), 138 states have return successors, (201), 161 states have call predecessors, (201), 153 states have call successors, (201) [2023-12-16 01:09:54,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2094 transitions. [2023-12-16 01:09:54,469 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2094 transitions. Word has length 59 [2023-12-16 01:09:54,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:54,469 INFO L495 AbstractCegarLoop]: Abstraction has 1516 states and 2094 transitions. [2023-12-16 01:09:54,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:09:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2094 transitions. [2023-12-16 01:09:54,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 01:09:54,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:54,470 INFO L195 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, 1, 1, 1] [2023-12-16 01:09:54,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:09:54,471 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:54,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:54,471 INFO L85 PathProgramCache]: Analyzing trace with hash 313944731, now seen corresponding path program 1 times [2023-12-16 01:09:54,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:54,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168908774] [2023-12-16 01:09:54,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:54,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:54,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:54,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:54,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:54,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:54,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:54,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:54,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:54,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:54,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:54,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168908774] [2023-12-16 01:09:54,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168908774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:54,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:54,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:54,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513034243] [2023-12-16 01:09:54,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:54,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:54,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:54,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:54,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:54,570 INFO L87 Difference]: Start difference. First operand 1516 states and 2094 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:09:55,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:55,494 INFO L93 Difference]: Finished difference Result 3794 states and 5048 transitions. [2023-12-16 01:09:55,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 01:09:55,495 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2023-12-16 01:09:55,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:55,502 INFO L225 Difference]: With dead ends: 3794 [2023-12-16 01:09:55,502 INFO L226 Difference]: Without dead ends: 2658 [2023-12-16 01:09:55,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-12-16 01:09:55,506 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 1763 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1797 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:55,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1797 Valid, 1240 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:09:55,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2023-12-16 01:09:55,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2554. [2023-12-16 01:09:55,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 1994 states have (on average 1.351554663991976) internal successors, (2695), 2039 states have internal predecessors, (2695), 284 states have call successors, (284), 219 states have call predecessors, (284), 274 states have return successors, (415), 300 states have call predecessors, (415), 282 states have call successors, (415) [2023-12-16 01:09:55,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3394 transitions. [2023-12-16 01:09:55,605 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3394 transitions. Word has length 59 [2023-12-16 01:09:55,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:55,624 INFO L495 AbstractCegarLoop]: Abstraction has 2554 states and 3394 transitions. [2023-12-16 01:09:55,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:09:55,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3394 transitions. [2023-12-16 01:09:55,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 01:09:55,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:55,626 INFO L195 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, 1, 1, 1, 1] [2023-12-16 01:09:55,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:09:55,626 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:55,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:55,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1824797346, now seen corresponding path program 1 times [2023-12-16 01:09:55,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:55,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620174009] [2023-12-16 01:09:55,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:55,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:55,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:55,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:55,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:55,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:55,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:55,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:55,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:55,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:55,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:55,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620174009] [2023-12-16 01:09:55,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620174009] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:55,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:55,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:09:55,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001590988] [2023-12-16 01:09:55,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:55,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:09:55,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:55,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:09:55,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:09:55,795 INFO L87 Difference]: Start difference. First operand 2554 states and 3394 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:09:56,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:56,742 INFO L93 Difference]: Finished difference Result 5732 states and 7452 transitions. [2023-12-16 01:09:56,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:09:56,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2023-12-16 01:09:56,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:56,755 INFO L225 Difference]: With dead ends: 5732 [2023-12-16 01:09:56,755 INFO L226 Difference]: Without dead ends: 3565 [2023-12-16 01:09:56,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:56,759 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 1185 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:56,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 1246 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:09:56,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3565 states. [2023-12-16 01:09:56,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3565 to 3319. [2023-12-16 01:09:56,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3319 states, 2571 states have (on average 1.3294437961882537) internal successors, (3418), 2623 states have internal predecessors, (3418), 376 states have call successors, (376), 299 states have call predecessors, (376), 370 states have return successors, (533), 401 states have call predecessors, (533), 374 states have call successors, (533) [2023-12-16 01:09:56,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4327 transitions. [2023-12-16 01:09:56,946 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4327 transitions. Word has length 60 [2023-12-16 01:09:56,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:56,947 INFO L495 AbstractCegarLoop]: Abstraction has 3319 states and 4327 transitions. [2023-12-16 01:09:56,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:09:56,947 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4327 transitions. [2023-12-16 01:09:56,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 01:09:56,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:56,948 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:56,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 01:09:56,948 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:56,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:56,948 INFO L85 PathProgramCache]: Analyzing trace with hash -445917247, now seen corresponding path program 1 times [2023-12-16 01:09:56,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:56,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427554710] [2023-12-16 01:09:56,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:56,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:57,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:57,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:57,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:57,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:57,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:57,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:57,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:57,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:57,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:57,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427554710] [2023-12-16 01:09:57,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427554710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:57,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:57,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:09:57,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431872796] [2023-12-16 01:09:57,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:57,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:09:57,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:57,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:09:57,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:09:57,066 INFO L87 Difference]: Start difference. First operand 3319 states and 4327 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:09:58,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:58,371 INFO L93 Difference]: Finished difference Result 7012 states and 8983 transitions. [2023-12-16 01:09:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:09:58,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2023-12-16 01:09:58,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:58,403 INFO L225 Difference]: With dead ends: 7012 [2023-12-16 01:09:58,403 INFO L226 Difference]: Without dead ends: 4076 [2023-12-16 01:09:58,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:58,416 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 1381 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:58,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 1306 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 01:09:58,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4076 states. [2023-12-16 01:09:58,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4076 to 3832. [2023-12-16 01:09:58,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3832 states, 2968 states have (on average 1.3190700808625337) internal successors, (3915), 3026 states have internal predecessors, (3915), 432 states have call successors, (432), 349 states have call predecessors, (432), 430 states have return successors, (610), 461 states have call predecessors, (610), 430 states have call successors, (610) [2023-12-16 01:09:58,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3832 states and 4957 transitions. [2023-12-16 01:09:58,733 INFO L78 Accepts]: Start accepts. Automaton has 3832 states and 4957 transitions. Word has length 66 [2023-12-16 01:09:58,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:58,733 INFO L495 AbstractCegarLoop]: Abstraction has 3832 states and 4957 transitions. [2023-12-16 01:09:58,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:09:58,733 INFO L276 IsEmpty]: Start isEmpty. Operand 3832 states and 4957 transitions. [2023-12-16 01:09:58,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 01:09:58,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:58,734 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:58,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 01:09:58,735 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:58,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:58,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1455549383, now seen corresponding path program 1 times [2023-12-16 01:09:58,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:58,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207122333] [2023-12-16 01:09:58,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:58,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:58,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:58,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:58,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:58,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:58,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:58,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:58,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:58,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:58,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207122333] [2023-12-16 01:09:58,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207122333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:58,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:58,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:58,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687134526] [2023-12-16 01:09:58,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:58,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:58,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:58,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:58,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:58,871 INFO L87 Difference]: Start difference. First operand 3832 states and 4957 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 01:09:59,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:59,861 INFO L93 Difference]: Finished difference Result 4823 states and 6163 transitions. [2023-12-16 01:09:59,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 01:09:59,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2023-12-16 01:09:59,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:59,878 INFO L225 Difference]: With dead ends: 4823 [2023-12-16 01:09:59,878 INFO L226 Difference]: Without dead ends: 4820 [2023-12-16 01:09:59,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-12-16 01:09:59,881 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 2419 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:59,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2429 Valid, 985 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:09:59,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4820 states. [2023-12-16 01:10:00,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4820 to 4521. [2023-12-16 01:10:00,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4521 states, 3478 states have (on average 1.3062104657849338) internal successors, (4543), 3543 states have internal predecessors, (4543), 515 states have call successors, (515), 421 states have call predecessors, (515), 526 states have return successors, (738), 561 states have call predecessors, (738), 514 states have call successors, (738) [2023-12-16 01:10:00,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4521 states to 4521 states and 5796 transitions. [2023-12-16 01:10:00,072 INFO L78 Accepts]: Start accepts. Automaton has 4521 states and 5796 transitions. Word has length 67 [2023-12-16 01:10:00,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:00,073 INFO L495 AbstractCegarLoop]: Abstraction has 4521 states and 5796 transitions. [2023-12-16 01:10:00,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 01:10:00,073 INFO L276 IsEmpty]: Start isEmpty. Operand 4521 states and 5796 transitions. [2023-12-16 01:10:00,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 01:10:00,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:00,077 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:00,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:10:00,078 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:00,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:00,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2121088779, now seen corresponding path program 1 times [2023-12-16 01:10:00,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:00,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983285411] [2023-12-16 01:10:00,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:00,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:00,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:00,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:10:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:00,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:10:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:00,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:00,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:00,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:10:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:00,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:10:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:00,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:00,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:00,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983285411] [2023-12-16 01:10:00,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983285411] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:10:00,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770363320] [2023-12-16 01:10:00,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:00,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:10:00,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:10:00,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:10:00,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 01:10:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:00,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 01:10:00,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:10:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:00,555 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 01:10:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:00,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770363320] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 01:10:00,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 01:10:00,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2023-12-16 01:10:00,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006958961] [2023-12-16 01:10:00,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 01:10:00,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:10:00,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:00,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:10:00,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:10:00,608 INFO L87 Difference]: Start difference. First operand 4521 states and 5796 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 01:10:02,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:02,254 INFO L93 Difference]: Finished difference Result 8673 states and 10919 transitions. [2023-12-16 01:10:02,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 01:10:02,254 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 68 [2023-12-16 01:10:02,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:02,288 INFO L225 Difference]: With dead ends: 8673 [2023-12-16 01:10:02,288 INFO L226 Difference]: Without dead ends: 8670 [2023-12-16 01:10:02,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2023-12-16 01:10:02,291 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 1929 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:02,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 2181 Invalid, 2306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 2110 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 01:10:02,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8670 states. [2023-12-16 01:10:02,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8670 to 7832. [2023-12-16 01:10:02,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7832 states, 5999 states have (on average 1.2873812302050343) internal successors, (7723), 6115 states have internal predecessors, (7723), 893 states have call successors, (893), 753 states have call predecessors, (893), 938 states have return successors, (1295), 968 states have call predecessors, (1295), 892 states have call successors, (1295) [2023-12-16 01:10:02,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7832 states to 7832 states and 9911 transitions. [2023-12-16 01:10:02,711 INFO L78 Accepts]: Start accepts. Automaton has 7832 states and 9911 transitions. Word has length 68 [2023-12-16 01:10:02,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:02,711 INFO L495 AbstractCegarLoop]: Abstraction has 7832 states and 9911 transitions. [2023-12-16 01:10:02,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 01:10:02,712 INFO L276 IsEmpty]: Start isEmpty. Operand 7832 states and 9911 transitions. [2023-12-16 01:10:02,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 01:10:02,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:02,714 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:02,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 01:10:02,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-16 01:10:02,932 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:02,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:02,933 INFO L85 PathProgramCache]: Analyzing trace with hash 88699705, now seen corresponding path program 2 times [2023-12-16 01:10:02,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:02,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511963395] [2023-12-16 01:10:02,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:02,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:02,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:02,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:10:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:10:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:02,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:02,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:02,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:10:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:02,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:10:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:02,985 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:02,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:02,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511963395] [2023-12-16 01:10:02,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511963395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:02,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:02,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:10:02,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825325493] [2023-12-16 01:10:02,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:02,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:10:02,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:02,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:10:02,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:10:02,987 INFO L87 Difference]: Start difference. First operand 7832 states and 9911 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 01:10:04,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:04,152 INFO L93 Difference]: Finished difference Result 10622 states and 13418 transitions. [2023-12-16 01:10:04,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 01:10:04,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2023-12-16 01:10:04,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:04,184 INFO L225 Difference]: With dead ends: 10622 [2023-12-16 01:10:04,184 INFO L226 Difference]: Without dead ends: 4410 [2023-12-16 01:10:04,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:10:04,193 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 1319 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:04,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 1345 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:10:04,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4410 states. [2023-12-16 01:10:04,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4410 to 3415. [2023-12-16 01:10:04,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3415 states, 2650 states have (on average 1.2969811320754716) internal successors, (3437), 2688 states have internal predecessors, (3437), 392 states have call successors, (392), 317 states have call predecessors, (392), 371 states have return successors, (519), 414 states have call predecessors, (519), 391 states have call successors, (519) [2023-12-16 01:10:04,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3415 states to 3415 states and 4348 transitions. [2023-12-16 01:10:04,514 INFO L78 Accepts]: Start accepts. Automaton has 3415 states and 4348 transitions. Word has length 71 [2023-12-16 01:10:04,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:04,515 INFO L495 AbstractCegarLoop]: Abstraction has 3415 states and 4348 transitions. [2023-12-16 01:10:04,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 01:10:04,515 INFO L276 IsEmpty]: Start isEmpty. Operand 3415 states and 4348 transitions. [2023-12-16 01:10:04,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 01:10:04,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:04,516 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:04,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 01:10:04,517 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:04,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:04,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2021869420, now seen corresponding path program 1 times [2023-12-16 01:10:04,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:04,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365925698] [2023-12-16 01:10:04,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:04,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:04,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:04,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:10:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:04,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:10:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:04,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:04,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:10:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:04,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:10:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:04,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 01:10:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 01:10:04,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:04,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365925698] [2023-12-16 01:10:04,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365925698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:04,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:04,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:10:04,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575989953] [2023-12-16 01:10:04,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:04,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:10:04,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:04,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:10:04,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:10:04,646 INFO L87 Difference]: Start difference. First operand 3415 states and 4348 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 01:10:06,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:06,261 INFO L93 Difference]: Finished difference Result 9493 states and 11841 transitions. [2023-12-16 01:10:06,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 01:10:06,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2023-12-16 01:10:06,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:06,274 INFO L225 Difference]: With dead ends: 9493 [2023-12-16 01:10:06,274 INFO L226 Difference]: Without dead ends: 5477 [2023-12-16 01:10:06,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-12-16 01:10:06,281 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 1084 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:06,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 1951 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 01:10:06,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5477 states. [2023-12-16 01:10:06,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5477 to 5213. [2023-12-16 01:10:06,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 3975 states have (on average 1.2563522012578616) internal successors, (4994), 4056 states have internal predecessors, (4994), 608 states have call successors, (608), 503 states have call predecessors, (608), 628 states have return successors, (903), 658 states have call predecessors, (903), 607 states have call successors, (903) [2023-12-16 01:10:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 6505 transitions. [2023-12-16 01:10:06,549 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 6505 transitions. Word has length 76 [2023-12-16 01:10:06,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:06,549 INFO L495 AbstractCegarLoop]: Abstraction has 5213 states and 6505 transitions. [2023-12-16 01:10:06,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 01:10:06,550 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 6505 transitions. [2023-12-16 01:10:06,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 01:10:06,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:06,552 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:06,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 01:10:06,552 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:06,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:06,553 INFO L85 PathProgramCache]: Analyzing trace with hash 734221872, now seen corresponding path program 1 times [2023-12-16 01:10:06,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:06,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372967427] [2023-12-16 01:10:06,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:06,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:06,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:06,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:10:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:06,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:10:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:06,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:06,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:06,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:10:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:06,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:10:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:06,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 01:10:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:06,645 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 01:10:06,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:06,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372967427] [2023-12-16 01:10:06,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372967427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:06,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:06,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:10:06,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120987753] [2023-12-16 01:10:06,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:06,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:10:06,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:06,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:10:06,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:10:06,647 INFO L87 Difference]: Start difference. First operand 5213 states and 6505 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 01:10:08,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:08,114 INFO L93 Difference]: Finished difference Result 8568 states and 10571 transitions. [2023-12-16 01:10:08,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 01:10:08,115 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2023-12-16 01:10:08,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:08,126 INFO L225 Difference]: With dead ends: 8568 [2023-12-16 01:10:08,126 INFO L226 Difference]: Without dead ends: 4402 [2023-12-16 01:10:08,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2023-12-16 01:10:08,136 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 2742 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2782 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:08,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2782 Valid, 1636 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 01:10:08,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4402 states. [2023-12-16 01:10:08,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4402 to 3988. [2023-12-16 01:10:08,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3988 states, 3036 states have (on average 1.2450592885375493) internal successors, (3780), 3100 states have internal predecessors, (3780), 465 states have call successors, (465), 378 states have call predecessors, (465), 485 states have return successors, (645), 514 states have call predecessors, (645), 464 states have call successors, (645) [2023-12-16 01:10:08,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3988 states to 3988 states and 4890 transitions. [2023-12-16 01:10:08,318 INFO L78 Accepts]: Start accepts. Automaton has 3988 states and 4890 transitions. Word has length 86 [2023-12-16 01:10:08,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:08,318 INFO L495 AbstractCegarLoop]: Abstraction has 3988 states and 4890 transitions. [2023-12-16 01:10:08,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 01:10:08,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3988 states and 4890 transitions. [2023-12-16 01:10:08,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:10:08,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:08,321 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:08,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 01:10:08,322 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:08,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:08,322 INFO L85 PathProgramCache]: Analyzing trace with hash -159383321, now seen corresponding path program 1 times [2023-12-16 01:10:08,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:08,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787338319] [2023-12-16 01:10:08,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:08,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:10:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:10:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:10:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:10:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 01:10:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 01:10:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 01:10:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 01:10:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 01:10:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 01:10:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 01:10:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,477 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-16 01:10:08,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:08,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787338319] [2023-12-16 01:10:08,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787338319] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:10:08,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083585214] [2023-12-16 01:10:08,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:08,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:10:08,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:10:08,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:10:08,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 01:10:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:08,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 01:10:08,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:10:08,708 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 01:10:08,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:10:08,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083585214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:08,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:10:08,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2023-12-16 01:10:08,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246728280] [2023-12-16 01:10:08,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:08,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:10:08,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:08,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:10:08,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 01:10:08,711 INFO L87 Difference]: Start difference. First operand 3988 states and 4890 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 01:10:08,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:08,949 INFO L93 Difference]: Finished difference Result 6018 states and 7339 transitions. [2023-12-16 01:10:08,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:10:08,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2023-12-16 01:10:08,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:08,955 INFO L225 Difference]: With dead ends: 6018 [2023-12-16 01:10:08,955 INFO L226 Difference]: Without dead ends: 2417 [2023-12-16 01:10:08,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-12-16 01:10:08,961 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 32 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3314 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:08,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3314 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 01:10:08,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2023-12-16 01:10:09,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 2262. [2023-12-16 01:10:09,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2262 states, 1810 states have (on average 1.2712707182320442) internal successors, (2301), 1828 states have internal predecessors, (2301), 227 states have call successors, (227), 172 states have call predecessors, (227), 223 states have return successors, (309), 262 states have call predecessors, (309), 226 states have call successors, (309) [2023-12-16 01:10:09,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 2837 transitions. [2023-12-16 01:10:09,055 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 2837 transitions. Word has length 131 [2023-12-16 01:10:09,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:09,055 INFO L495 AbstractCegarLoop]: Abstraction has 2262 states and 2837 transitions. [2023-12-16 01:10:09,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 01:10:09,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 2837 transitions. [2023-12-16 01:10:09,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 01:10:09,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:09,058 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:09,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 01:10:09,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-16 01:10:09,264 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:09,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:09,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1566497303, now seen corresponding path program 1 times [2023-12-16 01:10:09,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:09,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242546552] [2023-12-16 01:10:09,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:09,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:10:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:10:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:10:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:10:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 01:10:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 01:10:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 01:10:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:10:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 01:10:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 01:10:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 01:10:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-12-16 01:10:09,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:09,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242546552] [2023-12-16 01:10:09,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242546552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:09,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:09,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:10:09,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847101631] [2023-12-16 01:10:09,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:09,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:10:09,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:09,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:10:09,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:10:09,612 INFO L87 Difference]: Start difference. First operand 2262 states and 2837 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 01:10:10,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:10,523 INFO L93 Difference]: Finished difference Result 2316 states and 2893 transitions. [2023-12-16 01:10:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:10:10,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 133 [2023-12-16 01:10:10,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:10,527 INFO L225 Difference]: With dead ends: 2316 [2023-12-16 01:10:10,527 INFO L226 Difference]: Without dead ends: 1845 [2023-12-16 01:10:10,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:10:10,530 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 755 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:10,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 1482 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:10:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2023-12-16 01:10:10,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1794. [2023-12-16 01:10:10,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1460 states have (on average 1.2993150684931507) internal successors, (1897), 1474 states have internal predecessors, (1897), 170 states have call successors, (170), 123 states have call predecessors, (170), 162 states have return successors, (231), 197 states have call predecessors, (231), 169 states have call successors, (231) [2023-12-16 01:10:10,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2298 transitions. [2023-12-16 01:10:10,634 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2298 transitions. Word has length 133 [2023-12-16 01:10:10,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:10,634 INFO L495 AbstractCegarLoop]: Abstraction has 1794 states and 2298 transitions. [2023-12-16 01:10:10,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 01:10:10,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2298 transitions. [2023-12-16 01:10:10,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 01:10:10,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:10,640 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 01:10:10,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 01:10:10,641 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:10,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:10,641 INFO L85 PathProgramCache]: Analyzing trace with hash -808277417, now seen corresponding path program 1 times [2023-12-16 01:10:10,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:10,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283839812] [2023-12-16 01:10:10,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:10,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:10:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:10:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:10:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:10:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 01:10:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 01:10:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 01:10:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 01:10:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-16 01:10:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 01:10:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-16 01:10:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:10,736 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-16 01:10:10,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:10,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283839812] [2023-12-16 01:10:10,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283839812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:10,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:10,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:10:10,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568542930] [2023-12-16 01:10:10,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:10,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:10:10,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:10,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:10:10,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:10:10,737 INFO L87 Difference]: Start difference. First operand 1794 states and 2298 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 01:10:11,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:11,818 INFO L93 Difference]: Finished difference Result 2961 states and 3702 transitions. [2023-12-16 01:10:11,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 01:10:11,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 145 [2023-12-16 01:10:11,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:11,823 INFO L225 Difference]: With dead ends: 2961 [2023-12-16 01:10:11,823 INFO L226 Difference]: Without dead ends: 1702 [2023-12-16 01:10:11,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:10:11,828 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 685 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:11,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1921 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 01:10:11,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2023-12-16 01:10:11,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1563. [2023-12-16 01:10:11,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1280 states have (on average 1.31953125) internal successors, (1689), 1294 states have internal predecessors, (1689), 145 states have call successors, (145), 102 states have call predecessors, (145), 136 states have return successors, (193), 167 states have call predecessors, (193), 144 states have call successors, (193) [2023-12-16 01:10:11,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2027 transitions. [2023-12-16 01:10:11,890 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2027 transitions. Word has length 145 [2023-12-16 01:10:11,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:11,890 INFO L495 AbstractCegarLoop]: Abstraction has 1563 states and 2027 transitions. [2023-12-16 01:10:11,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 01:10:11,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2027 transitions. [2023-12-16 01:10:11,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 01:10:11,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:11,892 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:11,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 01:10:11,892 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:11,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:11,893 INFO L85 PathProgramCache]: Analyzing trace with hash -461558645, now seen corresponding path program 1 times [2023-12-16 01:10:11,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:11,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535278931] [2023-12-16 01:10:11,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:11,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:10:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:10:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:10:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:10:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 01:10:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 01:10:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 01:10:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 01:10:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:10:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:10:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 01:10:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:10:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 01:10:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-16 01:10:12,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:12,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535278931] [2023-12-16 01:10:12,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535278931] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:10:12,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485348299] [2023-12-16 01:10:12,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:12,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:10:12,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:10:12,069 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:10:12,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 01:10:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:12,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 01:10:12,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:10:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 01:10:12,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:10:12,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485348299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:12,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:10:12,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-12-16 01:10:12,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911280672] [2023-12-16 01:10:12,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:12,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:10:12,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:12,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:10:12,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:10:12,358 INFO L87 Difference]: Start difference. First operand 1563 states and 2027 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 01:10:12,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:12,909 INFO L93 Difference]: Finished difference Result 3673 states and 4619 transitions. [2023-12-16 01:10:12,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:10:12,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 147 [2023-12-16 01:10:12,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:12,914 INFO L225 Difference]: With dead ends: 3673 [2023-12-16 01:10:12,914 INFO L226 Difference]: Without dead ends: 2391 [2023-12-16 01:10:12,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-16 01:10:12,917 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 376 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:12,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 982 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:10:12,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2023-12-16 01:10:13,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 2352. [2023-12-16 01:10:13,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 1926 states have (on average 1.2673935617860852) internal successors, (2441), 1944 states have internal predecessors, (2441), 215 states have call successors, (215), 153 states have call predecessors, (215), 209 states have return successors, (304), 255 states have call predecessors, (304), 214 states have call successors, (304) [2023-12-16 01:10:13,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 2960 transitions. [2023-12-16 01:10:13,013 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 2960 transitions. Word has length 147 [2023-12-16 01:10:13,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:13,013 INFO L495 AbstractCegarLoop]: Abstraction has 2352 states and 2960 transitions. [2023-12-16 01:10:13,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 01:10:13,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 2960 transitions. [2023-12-16 01:10:13,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 01:10:13,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:13,015 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:13,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 01:10:13,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:10:13,221 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:13,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:13,221 INFO L85 PathProgramCache]: Analyzing trace with hash 435397238, now seen corresponding path program 1 times [2023-12-16 01:10:13,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:13,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251311968] [2023-12-16 01:10:13,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:13,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:13,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:13,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 01:10:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:13,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 01:10:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:13,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 01:10:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:13,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 01:10:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:13,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:13,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:13,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251311968] [2023-12-16 01:10:13,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251311968] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:13,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:13,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:10:13,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185936796] [2023-12-16 01:10:13,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:13,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:10:13,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:13,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:10:13,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:10:13,558 INFO L87 Difference]: Start difference. First operand 2352 states and 2960 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:16,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:16,508 INFO L93 Difference]: Finished difference Result 2929 states and 3936 transitions. [2023-12-16 01:10:16,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 01:10:16,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-16 01:10:16,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:16,516 INFO L225 Difference]: With dead ends: 2929 [2023-12-16 01:10:16,517 INFO L226 Difference]: Without dead ends: 2564 [2023-12-16 01:10:16,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-12-16 01:10:16,520 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 1449 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:16,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 1513 Invalid, 2573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 01:10:16,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2023-12-16 01:10:16,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2354. [2023-12-16 01:10:16,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2354 states, 1928 states have (on average 1.266597510373444) internal successors, (2442), 1946 states have internal predecessors, (2442), 215 states have call successors, (215), 153 states have call predecessors, (215), 209 states have return successors, (304), 255 states have call predecessors, (304), 214 states have call successors, (304) [2023-12-16 01:10:16,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2354 states to 2354 states and 2961 transitions. [2023-12-16 01:10:16,691 INFO L78 Accepts]: Start accepts. Automaton has 2354 states and 2961 transitions. Word has length 171 [2023-12-16 01:10:16,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:16,691 INFO L495 AbstractCegarLoop]: Abstraction has 2354 states and 2961 transitions. [2023-12-16 01:10:16,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:16,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2354 states and 2961 transitions. [2023-12-16 01:10:16,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 01:10:16,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:16,693 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:16,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 01:10:16,693 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:16,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:16,693 INFO L85 PathProgramCache]: Analyzing trace with hash -547025614, now seen corresponding path program 1 times [2023-12-16 01:10:16,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:16,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058632193] [2023-12-16 01:10:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:16,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:16,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:16,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 01:10:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:16,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 01:10:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:16,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 01:10:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:16,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 01:10:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:16,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:16,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:16,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058632193] [2023-12-16 01:10:16,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058632193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:16,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:16,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:10:16,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951462823] [2023-12-16 01:10:16,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:16,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:10:16,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:16,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:10:16,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:10:16,886 INFO L87 Difference]: Start difference. First operand 2354 states and 2961 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:20,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:20,002 INFO L93 Difference]: Finished difference Result 2897 states and 3880 transitions. [2023-12-16 01:10:20,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 01:10:20,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-16 01:10:20,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:20,007 INFO L225 Difference]: With dead ends: 2897 [2023-12-16 01:10:20,007 INFO L226 Difference]: Without dead ends: 2538 [2023-12-16 01:10:20,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-12-16 01:10:20,009 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1305 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 2526 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:20,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 1509 Invalid, 2617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2526 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 01:10:20,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2023-12-16 01:10:20,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2356. [2023-12-16 01:10:20,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 1930 states have (on average 1.2658031088082902) internal successors, (2443), 1948 states have internal predecessors, (2443), 215 states have call successors, (215), 153 states have call predecessors, (215), 209 states have return successors, (304), 255 states have call predecessors, (304), 214 states have call successors, (304) [2023-12-16 01:10:20,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 2962 transitions. [2023-12-16 01:10:20,205 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 2962 transitions. Word has length 171 [2023-12-16 01:10:20,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:20,205 INFO L495 AbstractCegarLoop]: Abstraction has 2356 states and 2962 transitions. [2023-12-16 01:10:20,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:20,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 2962 transitions. [2023-12-16 01:10:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 01:10:20,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:20,206 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:20,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 01:10:20,207 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:20,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:20,207 INFO L85 PathProgramCache]: Analyzing trace with hash -651614030, now seen corresponding path program 1 times [2023-12-16 01:10:20,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:20,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280516073] [2023-12-16 01:10:20,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:20,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:20,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:20,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 01:10:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:20,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 01:10:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:20,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 01:10:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:20,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 01:10:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:20,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:20,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280516073] [2023-12-16 01:10:20,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280516073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:20,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:20,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:10:20,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186139851] [2023-12-16 01:10:20,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:20,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:10:20,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:20,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:10:20,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:10:20,414 INFO L87 Difference]: Start difference. First operand 2356 states and 2962 transitions. Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 6 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:25,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:25,836 INFO L93 Difference]: Finished difference Result 3433 states and 4784 transitions. [2023-12-16 01:10:25,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 01:10:25,836 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 6 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-16 01:10:25,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:25,842 INFO L225 Difference]: With dead ends: 3433 [2023-12-16 01:10:25,842 INFO L226 Difference]: Without dead ends: 3079 [2023-12-16 01:10:25,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2023-12-16 01:10:25,843 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1981 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 4000 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 1955 SdHoareTripleChecker+Invalid, 4151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 4000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:25,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2013 Valid, 1955 Invalid, 4151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 4000 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-16 01:10:25,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3079 states. [2023-12-16 01:10:26,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3079 to 2736. [2023-12-16 01:10:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 2281 states have (on average 1.3231039017974573) internal successors, (3018), 2300 states have internal predecessors, (3018), 237 states have call successors, (237), 159 states have call predecessors, (237), 216 states have return successors, (329), 277 states have call predecessors, (329), 236 states have call successors, (329) [2023-12-16 01:10:26,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3584 transitions. [2023-12-16 01:10:26,024 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3584 transitions. Word has length 171 [2023-12-16 01:10:26,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:26,024 INFO L495 AbstractCegarLoop]: Abstraction has 2736 states and 3584 transitions. [2023-12-16 01:10:26,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 6 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:26,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3584 transitions. [2023-12-16 01:10:26,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 01:10:26,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:26,026 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:26,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 01:10:26,026 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:26,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:26,026 INFO L85 PathProgramCache]: Analyzing trace with hash 135108536, now seen corresponding path program 1 times [2023-12-16 01:10:26,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:26,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269130459] [2023-12-16 01:10:26,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:26,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:26,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:26,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 01:10:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:26,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 01:10:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:26,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 01:10:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:26,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 01:10:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:26,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:26,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:26,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269130459] [2023-12-16 01:10:26,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269130459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:26,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:26,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:10:26,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431511804] [2023-12-16 01:10:26,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:26,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:10:26,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:26,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:10:26,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:10:26,298 INFO L87 Difference]: Start difference. First operand 2736 states and 3584 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:30,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:30,858 INFO L93 Difference]: Finished difference Result 4306 states and 6196 transitions. [2023-12-16 01:10:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:10:30,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-16 01:10:30,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:30,866 INFO L225 Difference]: With dead ends: 4306 [2023-12-16 01:10:30,867 INFO L226 Difference]: Without dead ends: 3572 [2023-12-16 01:10:30,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:10:30,871 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 1823 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 4249 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 4346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 4249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:30,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 2353 Invalid, 4346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 4249 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-16 01:10:30,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2023-12-16 01:10:31,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 3085. [2023-12-16 01:10:31,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3085 states, 2601 states have (on average 1.3583237216455208) internal successors, (3533), 2621 states have internal predecessors, (3533), 259 states have call successors, (259), 165 states have call predecessors, (259), 223 states have return successors, (353), 300 states have call predecessors, (353), 258 states have call successors, (353) [2023-12-16 01:10:31,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3085 states to 3085 states and 4145 transitions. [2023-12-16 01:10:31,113 INFO L78 Accepts]: Start accepts. Automaton has 3085 states and 4145 transitions. Word has length 171 [2023-12-16 01:10:31,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:31,114 INFO L495 AbstractCegarLoop]: Abstraction has 3085 states and 4145 transitions. [2023-12-16 01:10:31,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:31,114 INFO L276 IsEmpty]: Start isEmpty. Operand 3085 states and 4145 transitions. [2023-12-16 01:10:31,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 01:10:31,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:31,115 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:31,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 01:10:31,116 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:31,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:31,116 INFO L85 PathProgramCache]: Analyzing trace with hash -129538954, now seen corresponding path program 1 times [2023-12-16 01:10:31,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:31,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237590068] [2023-12-16 01:10:31,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:31,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:31,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:31,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 01:10:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:31,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 01:10:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:31,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 01:10:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:31,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 01:10:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:31,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:31,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:31,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237590068] [2023-12-16 01:10:31,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237590068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:31,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:31,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:10:31,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829452283] [2023-12-16 01:10:31,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:31,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:10:31,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:31,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:10:31,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:10:31,317 INFO L87 Difference]: Start difference. First operand 3085 states and 4145 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:36,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:36,024 INFO L93 Difference]: Finished difference Result 5662 states and 8423 transitions. [2023-12-16 01:10:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:10:36,025 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-16 01:10:36,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:36,034 INFO L225 Difference]: With dead ends: 5662 [2023-12-16 01:10:36,034 INFO L226 Difference]: Without dead ends: 4579 [2023-12-16 01:10:36,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:10:36,039 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 1821 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 4245 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 4344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 4245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:36,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 2351 Invalid, 4344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 4245 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-16 01:10:36,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4579 states. [2023-12-16 01:10:36,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4579 to 3784. [2023-12-16 01:10:36,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3784 states, 3242 states have (on average 1.4077729796421963) internal successors, (4564), 3264 states have internal predecessors, (4564), 303 states have call successors, (303), 177 states have call predecessors, (303), 237 states have return successors, (405), 346 states have call predecessors, (405), 302 states have call successors, (405) [2023-12-16 01:10:36,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 5272 transitions. [2023-12-16 01:10:36,279 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 5272 transitions. Word has length 171 [2023-12-16 01:10:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:36,279 INFO L495 AbstractCegarLoop]: Abstraction has 3784 states and 5272 transitions. [2023-12-16 01:10:36,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:36,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 5272 transitions. [2023-12-16 01:10:36,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 01:10:36,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:36,281 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:36,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 01:10:36,281 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:36,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:36,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1801586680, now seen corresponding path program 1 times [2023-12-16 01:10:36,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:36,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45037353] [2023-12-16 01:10:36,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:36,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:36,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:36,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 01:10:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 01:10:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 01:10:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 01:10:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:36,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:36,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:36,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45037353] [2023-12-16 01:10:36,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45037353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:36,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:36,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:10:36,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027933697] [2023-12-16 01:10:36,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:36,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:10:36,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:36,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:10:36,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:10:36,485 INFO L87 Difference]: Start difference. First operand 3784 states and 5272 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:38,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:38,230 INFO L93 Difference]: Finished difference Result 6351 states and 9543 transitions. [2023-12-16 01:10:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:10:38,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-16 01:10:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:38,241 INFO L225 Difference]: With dead ends: 6351 [2023-12-16 01:10:38,241 INFO L226 Difference]: Without dead ends: 4569 [2023-12-16 01:10:38,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:10:38,246 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 1662 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 1918 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:38,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1693 Valid, 1104 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1918 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 01:10:38,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4569 states. [2023-12-16 01:10:38,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4569 to 3784. [2023-12-16 01:10:38,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3784 states, 3242 states have (on average 1.406230721776681) internal successors, (4559), 3264 states have internal predecessors, (4559), 303 states have call successors, (303), 177 states have call predecessors, (303), 237 states have return successors, (405), 346 states have call predecessors, (405), 302 states have call successors, (405) [2023-12-16 01:10:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 5267 transitions. [2023-12-16 01:10:38,569 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 5267 transitions. Word has length 171 [2023-12-16 01:10:38,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:38,569 INFO L495 AbstractCegarLoop]: Abstraction has 3784 states and 5267 transitions. [2023-12-16 01:10:38,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:38,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 5267 transitions. [2023-12-16 01:10:38,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 01:10:38,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:38,571 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:38,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 01:10:38,571 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:38,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:38,571 INFO L85 PathProgramCache]: Analyzing trace with hash 478407734, now seen corresponding path program 1 times [2023-12-16 01:10:38,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:38,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894492084] [2023-12-16 01:10:38,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:38,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:38,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 01:10:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 01:10:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:38,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 01:10:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:38,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 01:10:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:38,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:38,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:38,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894492084] [2023-12-16 01:10:38,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894492084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:38,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:38,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:10:38,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071392008] [2023-12-16 01:10:38,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:38,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:10:38,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:38,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:10:38,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:10:38,837 INFO L87 Difference]: Start difference. First operand 3784 states and 5267 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:40,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:40,832 INFO L93 Difference]: Finished difference Result 6345 states and 9517 transitions. [2023-12-16 01:10:40,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:10:40,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-16 01:10:40,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:40,857 INFO L225 Difference]: With dead ends: 6345 [2023-12-16 01:10:40,857 INFO L226 Difference]: Without dead ends: 4563 [2023-12-16 01:10:40,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:10:40,862 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1568 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:40,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 1105 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 01:10:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4563 states. [2023-12-16 01:10:41,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4563 to 3784. [2023-12-16 01:10:41,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3784 states, 3242 states have (on average 1.4046884639111659) internal successors, (4554), 3264 states have internal predecessors, (4554), 303 states have call successors, (303), 177 states have call predecessors, (303), 237 states have return successors, (405), 346 states have call predecessors, (405), 302 states have call successors, (405) [2023-12-16 01:10:41,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 5262 transitions. [2023-12-16 01:10:41,131 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 5262 transitions. Word has length 171 [2023-12-16 01:10:41,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:41,131 INFO L495 AbstractCegarLoop]: Abstraction has 3784 states and 5262 transitions. [2023-12-16 01:10:41,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:41,131 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 5262 transitions. [2023-12-16 01:10:41,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 01:10:41,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:41,133 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:41,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 01:10:41,134 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:41,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:41,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1919580104, now seen corresponding path program 1 times [2023-12-16 01:10:41,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:41,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92759695] [2023-12-16 01:10:41,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:41,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:41,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:41,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 01:10:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:41,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 01:10:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:41,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 01:10:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:41,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 01:10:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:41,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:41,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:41,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92759695] [2023-12-16 01:10:41,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92759695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:41,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:41,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:10:41,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974933646] [2023-12-16 01:10:41,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:41,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:10:41,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:41,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:10:41,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:10:41,368 INFO L87 Difference]: Start difference. First operand 3784 states and 5262 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:45,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:45,945 INFO L93 Difference]: Finished difference Result 8242 states and 12586 transitions. [2023-12-16 01:10:45,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:10:45,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-16 01:10:45,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:45,960 INFO L225 Difference]: With dead ends: 8242 [2023-12-16 01:10:45,960 INFO L226 Difference]: Without dead ends: 6460 [2023-12-16 01:10:45,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:10:45,966 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 1807 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 4164 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1837 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 4263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 4164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:45,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1837 Valid, 2351 Invalid, 4263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 4164 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-16 01:10:45,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6460 states. [2023-12-16 01:10:46,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6460 to 5196. [2023-12-16 01:10:46,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5196 states, 4538 states have (on average 1.4605553107095637) internal successors, (6628), 4564 states have internal predecessors, (6628), 391 states have call successors, (391), 201 states have call predecessors, (391), 265 states have return successors, (515), 438 states have call predecessors, (515), 390 states have call successors, (515) [2023-12-16 01:10:46,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 7534 transitions. [2023-12-16 01:10:46,428 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 7534 transitions. Word has length 171 [2023-12-16 01:10:46,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:46,428 INFO L495 AbstractCegarLoop]: Abstraction has 5196 states and 7534 transitions. [2023-12-16 01:10:46,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:46,428 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 7534 transitions. [2023-12-16 01:10:46,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 01:10:46,430 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:46,430 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:46,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 01:10:46,431 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:46,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:46,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1493025606, now seen corresponding path program 1 times [2023-12-16 01:10:46,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:46,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048223369] [2023-12-16 01:10:46,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:46,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:46,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:46,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 01:10:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:46,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 01:10:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 01:10:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:46,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 01:10:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:46,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:46,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:46,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048223369] [2023-12-16 01:10:46,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048223369] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:46,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:46,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:10:46,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669426683] [2023-12-16 01:10:46,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:46,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:10:46,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:46,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:10:46,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:10:46,620 INFO L87 Difference]: Start difference. First operand 5196 states and 7534 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:48,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:10:48,936 INFO L93 Difference]: Finished difference Result 9683 states and 14941 transitions. [2023-12-16 01:10:48,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:10:48,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-16 01:10:48,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:10:48,951 INFO L225 Difference]: With dead ends: 9683 [2023-12-16 01:10:48,951 INFO L226 Difference]: Without dead ends: 6489 [2023-12-16 01:10:48,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:10:48,972 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1355 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:48,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 1321 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2178 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 01:10:48,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6489 states. [2023-12-16 01:10:49,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6489 to 5196. [2023-12-16 01:10:49,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5196 states, 4538 states have (on average 1.4585720581754076) internal successors, (6619), 4564 states have internal predecessors, (6619), 391 states have call successors, (391), 201 states have call predecessors, (391), 265 states have return successors, (515), 438 states have call predecessors, (515), 390 states have call successors, (515) [2023-12-16 01:10:49,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 7525 transitions. [2023-12-16 01:10:49,353 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 7525 transitions. Word has length 171 [2023-12-16 01:10:49,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:10:49,353 INFO L495 AbstractCegarLoop]: Abstraction has 5196 states and 7525 transitions. [2023-12-16 01:10:49,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:10:49,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 7525 transitions. [2023-12-16 01:10:49,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 01:10:49,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:10:49,357 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:49,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 01:10:49,357 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:10:49,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:10:49,357 INFO L85 PathProgramCache]: Analyzing trace with hash -2033455112, now seen corresponding path program 1 times [2023-12-16 01:10:49,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:10:49,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141150446] [2023-12-16 01:10:49,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:10:49,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:10:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:49,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:10:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:49,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 01:10:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:49,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 01:10:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:49,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 01:10:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 01:10:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:10:49,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:10:49,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:10:49,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141150446] [2023-12-16 01:10:49,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141150446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:10:49,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:10:49,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:10:49,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209673741] [2023-12-16 01:10:49,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:10:49,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:10:49,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:10:49,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:10:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:10:49,560 INFO L87 Difference]: Start difference. First operand 5196 states and 7525 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-16 01:10:49,928 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 01:10:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:10:49,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:10:49,988 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 58 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:10:49,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 139 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 01:10:49,990 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 01:10:49,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 01:10:49,991 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (5196states) and FLOYD_HOARE automaton (currently 4 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-44-1 term,while SimplifyDDA2 was simplifying 44 xjuncts wrt. a ATOM-1 context. [2023-12-16 01:10:49,992 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 01:10:49,994 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:10:49,998 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:10:49,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:10:49 BoogieIcfgContainer [2023-12-16 01:10:49,999 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:10:50,000 INFO L158 Benchmark]: Toolchain (without parser) took 66911.85ms. Allocated memory was 225.4MB in the beginning and 1.1GB in the end (delta: 871.4MB). Free memory was 181.3MB in the beginning and 576.7MB in the end (delta: -395.4MB). Peak memory consumption was 476.5MB. Max. memory is 8.0GB. [2023-12-16 01:10:50,000 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 187.7MB. Free memory was 138.2MB in the beginning and 138.1MB in the end (delta: 89.6kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:10:50,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.43ms. Allocated memory is still 225.4MB. Free memory was 181.0MB in the beginning and 152.0MB in the end (delta: 29.0MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-16 01:10:50,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.74ms. Allocated memory is still 225.4MB. Free memory was 152.0MB in the beginning and 147.1MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 01:10:50,001 INFO L158 Benchmark]: Boogie Preprocessor took 89.31ms. Allocated memory is still 225.4MB. Free memory was 147.1MB in the beginning and 140.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 01:10:50,003 INFO L158 Benchmark]: RCFGBuilder took 937.55ms. Allocated memory is still 225.4MB. Free memory was 140.8MB in the beginning and 127.2MB in the end (delta: 13.6MB). Peak memory consumption was 17.4MB. Max. memory is 8.0GB. [2023-12-16 01:10:50,003 INFO L158 Benchmark]: TraceAbstraction took 65421.29ms. Allocated memory was 225.4MB in the beginning and 1.1GB in the end (delta: 871.4MB). Free memory was 126.6MB in the beginning and 576.7MB in the end (delta: -450.1MB). Peak memory consumption was 421.3MB. Max. memory is 8.0GB. [2023-12-16 01:10:50,011 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 187.7MB. Free memory was 138.2MB in the beginning and 138.1MB in the end (delta: 89.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 393.43ms. Allocated memory is still 225.4MB. Free memory was 181.0MB in the beginning and 152.0MB in the end (delta: 29.0MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 65.74ms. Allocated memory is still 225.4MB. Free memory was 152.0MB in the beginning and 147.1MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 89.31ms. Allocated memory is still 225.4MB. Free memory was 147.1MB in the beginning and 140.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 937.55ms. Allocated memory is still 225.4MB. Free memory was 140.8MB in the beginning and 127.2MB in the end (delta: 13.6MB). Peak memory consumption was 17.4MB. Max. memory is 8.0GB. * TraceAbstraction took 65421.29ms. Allocated memory was 225.4MB in the beginning and 1.1GB in the end (delta: 871.4MB). Free memory was 126.6MB in the beginning and 576.7MB in the end (delta: -450.1MB). Peak memory consumption was 421.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 496]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 496). Cancelled while NwaCegarLoop was constructing difference of abstraction (5196states) and FLOYD_HOARE automaton (currently 4 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-44-1 term,while SimplifyDDA2 was simplifying 44 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 28]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 28). Cancelled while NwaCegarLoop was constructing difference of abstraction (5196states) and FLOYD_HOARE automaton (currently 4 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-44-1 term,while SimplifyDDA2 was simplifying 44 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 462 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 65.3s, OverallIterations: 27, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 53.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39672 SdHoareTripleChecker+Valid, 38.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39080 mSDsluCounter, 45603 SdHoareTripleChecker+Invalid, 31.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35181 mSDsCounter, 4200 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50380 IncrementalHoareTripleChecker+Invalid, 54580 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4200 mSolverCounterUnsat, 10422 mSDtfsCounter, 50380 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1325 GetRequests, 945 SyntacticMatches, 0 SemanticMatches, 379 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1284 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7832occurred in iteration=10, InterpolantAutomatonStates: 337, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.1s AutomataMinimizationTime, 26 MinimizatonAttempts, 10500 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 3457 NumberOfCodeBlocks, 3457 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 3494 ConstructedInterpolants, 0 QuantifiedInterpolants, 8705 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1602 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 31 InterpolantComputations, 26 PerfectInterpolantSequences, 484/501 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown