/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.09.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:08:51,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:08:52,021 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 01:08:52,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:08:52,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:08:52,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:08:52,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:08:52,051 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:08:52,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:08:52,054 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:08:52,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:08:52,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:08:52,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:08:52,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:08:52,057 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:08:52,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:08:52,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:08:52,057 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:08:52,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:08:52,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:08:52,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:08:52,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:08:52,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:08:52,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:08:52,058 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:08:52,059 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:08:52,059 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:08:52,059 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:08:52,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:08:52,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:08:52,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:08:52,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:08:52,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:08:52,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:08:52,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:08:52,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:08:52,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:08:52,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:08:52,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:08:52,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:08:52,062 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:08:52,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:08:52,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:08:52,062 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:08:52,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:08:52,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:08:52,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:08:52,254 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:08:52,254 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:08:52,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c [2023-12-16 01:08:53,284 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:08:53,489 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:08:53,489 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c [2023-12-16 01:08:53,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f95ed9e6/ea3e84418552402cb198fc2db02360b1/FLAG228284b71 [2023-12-16 01:08:53,511 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f95ed9e6/ea3e84418552402cb198fc2db02360b1 [2023-12-16 01:08:53,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:08:53,514 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:08:53,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:08:53,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:08:53,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:08:53,521 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:53,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ded2fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53, skipping insertion in model container [2023-12-16 01:08:53,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:53,575 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:08:53,673 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.09.cil-1.c[914,927] [2023-12-16 01:08:53,705 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.09.cil-1.c[7115,7128] [2023-12-16 01:08:53,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:08:53,770 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:08:53,778 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.09.cil-1.c[914,927] [2023-12-16 01:08:53,800 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.09.cil-1.c[7115,7128] [2023-12-16 01:08:53,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:08:53,876 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:08:53,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53 WrapperNode [2023-12-16 01:08:53,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:08:53,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:08:53,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:08:53,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:08:53,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:53,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:53,929 INFO L138 Inliner]: procedures = 71, calls = 84, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 888 [2023-12-16 01:08:53,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:08:53,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:08:53,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:08:53,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:08:53,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:53,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:53,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:53,965 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 01:08:53,966 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:53,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:53,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:53,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:53,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:53,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:54,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:08:54,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:08:54,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:08:54,013 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:08:54,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (1/1) ... [2023-12-16 01:08:54,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:08:54,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:08:54,090 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 01:08:54,136 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 01:08:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:08:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 01:08:54,155 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 01:08:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 01:08:54,156 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 01:08:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 01:08:54,157 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 01:08:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 01:08:54,157 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 01:08:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 01:08:54,157 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 01:08:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 01:08:54,157 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 01:08:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 01:08:54,157 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 01:08:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 01:08:54,157 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 01:08:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 01:08:54,158 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 01:08:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 01:08:54,158 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 01:08:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 01:08:54,158 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 01:08:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:08:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 01:08:54,158 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 01:08:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 01:08:54,159 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 01:08:54,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:08:54,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:08:54,159 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 01:08:54,159 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 01:08:54,290 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:08:54,292 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:08:54,880 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:08:54,941 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:08:54,942 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-12-16 01:08:54,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:08:54 BoogieIcfgContainer [2023-12-16 01:08:54,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:08:54,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:08:54,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:08:54,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:08:54,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:08:53" (1/3) ... [2023-12-16 01:08:54,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cdb39c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:08:54, skipping insertion in model container [2023-12-16 01:08:54,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:53" (2/3) ... [2023-12-16 01:08:54,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cdb39c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:08:54, skipping insertion in model container [2023-12-16 01:08:54,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:08:54" (3/3) ... [2023-12-16 01:08:54,948 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.09.cil-1.c [2023-12-16 01:08:54,961 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:08:54,961 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 01:08:54,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:08:55,002 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;@71787fa3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:08:55,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 01:08:55,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 370 states, 316 states have (on average 1.7025316455696202) internal successors, (538), 322 states have internal predecessors, (538), 37 states have call successors, (37), 14 states have call predecessors, (37), 14 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-16 01:08:55,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:55,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:55,016 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 01:08:55,016 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:55,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:55,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1732900895, now seen corresponding path program 1 times [2023-12-16 01:08:55,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:55,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047754054] [2023-12-16 01:08:55,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:55,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,330 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 01:08:55,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:55,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047754054] [2023-12-16 01:08:55,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047754054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:55,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:55,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:08:55,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993949528] [2023-12-16 01:08:55,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:55,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:08:55,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:55,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:08:55,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:08:55,357 INFO L87 Difference]: Start difference. First operand has 370 states, 316 states have (on average 1.7025316455696202) internal successors, (538), 322 states have internal predecessors, (538), 37 states have call successors, (37), 14 states have call predecessors, (37), 14 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) 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 01:08:56,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:56,377 INFO L93 Difference]: Finished difference Result 843 states and 1381 transitions. [2023-12-16 01:08:56,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:08:56,379 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 01:08:56,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:56,388 INFO L225 Difference]: With dead ends: 843 [2023-12-16 01:08:56,388 INFO L226 Difference]: Without dead ends: 490 [2023-12-16 01:08:56,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:08:56,395 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1255 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:56,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 1239 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:08:56,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2023-12-16 01:08:56,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 453. [2023-12-16 01:08:56,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 381 states have (on average 1.5643044619422573) internal successors, (596), 387 states have internal predecessors, (596), 48 states have call successors, (48), 21 states have call predecessors, (48), 22 states have return successors, (51), 47 states have call predecessors, (51), 46 states have call successors, (51) [2023-12-16 01:08:56,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 695 transitions. [2023-12-16 01:08:56,447 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 695 transitions. Word has length 58 [2023-12-16 01:08:56,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:56,447 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 695 transitions. [2023-12-16 01:08:56,447 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 01:08:56,448 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 695 transitions. [2023-12-16 01:08:56,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:56,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:56,450 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 01:08:56,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:08:56,450 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:56,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:56,451 INFO L85 PathProgramCache]: Analyzing trace with hash 641738848, now seen corresponding path program 1 times [2023-12-16 01:08:56,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:56,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471127409] [2023-12-16 01:08:56,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:56,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,572 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 01:08:56,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:56,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471127409] [2023-12-16 01:08:56,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471127409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:56,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:56,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:08:56,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504036981] [2023-12-16 01:08:56,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:56,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:08:56,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:56,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:08:56,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:08:56,575 INFO L87 Difference]: Start difference. First operand 453 states and 695 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 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 01:08:57,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:57,458 INFO L93 Difference]: Finished difference Result 773 states and 1145 transitions. [2023-12-16 01:08:57,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 01:08:57,460 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 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 01:08:57,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:57,463 INFO L225 Difference]: With dead ends: 773 [2023-12-16 01:08:57,463 INFO L226 Difference]: Without dead ends: 611 [2023-12-16 01:08:57,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-12-16 01:08:57,465 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1422 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:57,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 1430 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:08:57,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-12-16 01:08:57,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 541. [2023-12-16 01:08:57,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 449 states have (on average 1.5412026726057906) internal successors, (692), 457 states have internal predecessors, (692), 59 states have call successors, (59), 28 states have call predecessors, (59), 31 states have return successors, (70), 59 states have call predecessors, (70), 57 states have call successors, (70) [2023-12-16 01:08:57,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 821 transitions. [2023-12-16 01:08:57,557 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 821 transitions. Word has length 58 [2023-12-16 01:08:57,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:57,557 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 821 transitions. [2023-12-16 01:08:57,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 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 01:08:57,558 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 821 transitions. [2023-12-16 01:08:57,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:57,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:57,562 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 01:08:57,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:08:57,562 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:57,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:57,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1724955746, now seen corresponding path program 1 times [2023-12-16 01:08:57,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:57,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818418915] [2023-12-16 01:08:57,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:57,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,772 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 01:08:57,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:57,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818418915] [2023-12-16 01:08:57,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818418915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:57,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:57,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:08:57,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025858673] [2023-12-16 01:08:57,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:57,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:08:57,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:57,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:08:57,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:08:57,774 INFO L87 Difference]: Start difference. First operand 541 states and 821 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 01:08:58,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:58,741 INFO L93 Difference]: Finished difference Result 817 states and 1210 transitions. [2023-12-16 01:08:58,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 01:08:58,742 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 01:08:58,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:58,748 INFO L225 Difference]: With dead ends: 817 [2023-12-16 01:08:58,748 INFO L226 Difference]: Without dead ends: 573 [2023-12-16 01:08:58,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:08:58,753 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 747 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:58,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1784 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1730 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:08:58,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2023-12-16 01:08:58,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 545. [2023-12-16 01:08:58,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 452 states have (on average 1.5331858407079646) internal successors, (693), 460 states have internal predecessors, (693), 59 states have call successors, (59), 28 states have call predecessors, (59), 32 states have return successors, (71), 60 states have call predecessors, (71), 57 states have call successors, (71) [2023-12-16 01:08:58,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 823 transitions. [2023-12-16 01:08:58,841 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 823 transitions. Word has length 58 [2023-12-16 01:08:58,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:58,841 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 823 transitions. [2023-12-16 01:08:58,841 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 01:08:58,841 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 823 transitions. [2023-12-16 01:08:58,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:58,842 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:58,842 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 01:08:58,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:08:58,843 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:58,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:58,843 INFO L85 PathProgramCache]: Analyzing trace with hash 326028252, now seen corresponding path program 1 times [2023-12-16 01:08:58,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:58,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633174144] [2023-12-16 01:08:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:58,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,938 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 01:08:58,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:58,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633174144] [2023-12-16 01:08:58,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633174144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:58,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:58,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:08:58,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075728763] [2023-12-16 01:08:58,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:58,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:08:58,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:58,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:08:58,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:08:58,940 INFO L87 Difference]: Start difference. First operand 545 states and 823 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 01:08:59,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:59,759 INFO L93 Difference]: Finished difference Result 835 states and 1228 transitions. [2023-12-16 01:08:59,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 01:08:59,759 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 01:08:59,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:59,762 INFO L225 Difference]: With dead ends: 835 [2023-12-16 01:08:59,762 INFO L226 Difference]: Without dead ends: 587 [2023-12-16 01:08:59,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:08:59,763 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 504 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:59,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 2007 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:08:59,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-12-16 01:08:59,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 557. [2023-12-16 01:08:59,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 461 states have (on average 1.5227765726681128) internal successors, (702), 469 states have internal predecessors, (702), 59 states have call successors, (59), 28 states have call predecessors, (59), 35 states have return successors, (74), 63 states have call predecessors, (74), 57 states have call successors, (74) [2023-12-16 01:08:59,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 835 transitions. [2023-12-16 01:08:59,781 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 835 transitions. Word has length 58 [2023-12-16 01:08:59,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:59,782 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 835 transitions. [2023-12-16 01:08:59,782 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 01:08:59,782 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 835 transitions. [2023-12-16 01:08:59,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:59,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:59,783 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 01:08:59,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:08:59,783 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:59,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:59,783 INFO L85 PathProgramCache]: Analyzing trace with hash 388067866, now seen corresponding path program 1 times [2023-12-16 01:08:59,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:59,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766770515] [2023-12-16 01:08:59,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:59,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:59,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:59,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:59,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:59,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:59,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:59,907 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 01:08:59,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:59,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766770515] [2023-12-16 01:08:59,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766770515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:59,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:59,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:08:59,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448620739] [2023-12-16 01:08:59,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:59,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:08:59,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:59,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:08:59,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:08:59,909 INFO L87 Difference]: Start difference. First operand 557 states and 835 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 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 01:09:00,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:00,765 INFO L93 Difference]: Finished difference Result 913 states and 1310 transitions. [2023-12-16 01:09:00,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 01:09:00,765 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 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 01:09:00,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:00,768 INFO L225 Difference]: With dead ends: 913 [2023-12-16 01:09:00,768 INFO L226 Difference]: Without dead ends: 655 [2023-12-16 01:09:00,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2023-12-16 01:09:00,770 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 1120 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:00,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 1494 Invalid, 1636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:09:00,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2023-12-16 01:09:00,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 567. [2023-12-16 01:09:00,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 469 states have (on average 1.5138592750533049) internal successors, (710), 477 states have internal predecessors, (710), 60 states have call successors, (60), 29 states have call predecessors, (60), 36 states have return successors, (73), 64 states have call predecessors, (73), 58 states have call successors, (73) [2023-12-16 01:09:00,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 843 transitions. [2023-12-16 01:09:00,793 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 843 transitions. Word has length 58 [2023-12-16 01:09:00,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:00,793 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 843 transitions. [2023-12-16 01:09:00,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 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 01:09:00,793 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 843 transitions. [2023-12-16 01:09:00,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:09:00,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:00,794 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 01:09:00,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:09:00,794 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:00,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:00,795 INFO L85 PathProgramCache]: Analyzing trace with hash 810769692, now seen corresponding path program 1 times [2023-12-16 01:09:00,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:00,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046573716] [2023-12-16 01:09:00,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:00,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,861 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 01:09:00,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:00,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046573716] [2023-12-16 01:09:00,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046573716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:00,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:00,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:00,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781851488] [2023-12-16 01:09:00,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:00,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:00,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:00,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:00,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:00,862 INFO L87 Difference]: Start difference. First operand 567 states and 843 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 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 01:09:01,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:01,381 INFO L93 Difference]: Finished difference Result 1149 states and 1630 transitions. [2023-12-16 01:09:01,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 01:09:01,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 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 58 [2023-12-16 01:09:01,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:01,385 INFO L225 Difference]: With dead ends: 1149 [2023-12-16 01:09:01,385 INFO L226 Difference]: Without dead ends: 882 [2023-12-16 01:09:01,386 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 01:09:01,387 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1377 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:01,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 988 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:09:01,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2023-12-16 01:09:01,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 828. [2023-12-16 01:09:01,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 664 states have (on average 1.4578313253012047) internal successors, (968), 679 states have internal predecessors, (968), 95 states have call successors, (95), 51 states have call predecessors, (95), 67 states have return successors, (130), 104 states have call predecessors, (130), 93 states have call successors, (130) [2023-12-16 01:09:01,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1193 transitions. [2023-12-16 01:09:01,414 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1193 transitions. Word has length 58 [2023-12-16 01:09:01,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:01,414 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 1193 transitions. [2023-12-16 01:09:01,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 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 01:09:01,415 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1193 transitions. [2023-12-16 01:09:01,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 01:09:01,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:01,416 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 01:09:01,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:09:01,416 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:01,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:01,417 INFO L85 PathProgramCache]: Analyzing trace with hash 772988597, now seen corresponding path program 1 times [2023-12-16 01:09:01,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:01,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897045418] [2023-12-16 01:09:01,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:01,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,491 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 01:09:01,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:01,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897045418] [2023-12-16 01:09:01,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897045418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:01,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:01,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:09:01,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608959670] [2023-12-16 01:09:01,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:01,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:09:01,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:01,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:09:01,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:09:01,492 INFO L87 Difference]: Start difference. First operand 828 states and 1193 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 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 01:09:02,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:02,070 INFO L93 Difference]: Finished difference Result 1912 states and 2639 transitions. [2023-12-16 01:09:02,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 01:09:02,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 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 59 [2023-12-16 01:09:02,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:02,075 INFO L225 Difference]: With dead ends: 1912 [2023-12-16 01:09:02,075 INFO L226 Difference]: Without dead ends: 1393 [2023-12-16 01:09:02,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-16 01:09:02,078 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 1099 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:02,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1131 Valid, 1027 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:09:02,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2023-12-16 01:09:02,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1239. [2023-12-16 01:09:02,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 975 states have (on average 1.403076923076923) internal successors, (1368), 997 states have internal predecessors, (1368), 144 states have call successors, (144), 93 states have call predecessors, (144), 118 states have return successors, (200), 155 states have call predecessors, (200), 142 states have call successors, (200) [2023-12-16 01:09:02,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1712 transitions. [2023-12-16 01:09:02,121 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1712 transitions. Word has length 59 [2023-12-16 01:09:02,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:02,122 INFO L495 AbstractCegarLoop]: Abstraction has 1239 states and 1712 transitions. [2023-12-16 01:09:02,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 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 01:09:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1712 transitions. [2023-12-16 01:09:02,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 01:09:02,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:02,124 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 01:09:02,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 01:09:02,124 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:02,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:02,124 INFO L85 PathProgramCache]: Analyzing trace with hash -946681344, now seen corresponding path program 1 times [2023-12-16 01:09:02,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:02,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630629330] [2023-12-16 01:09:02,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:02,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:02,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:02,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:02,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:02,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:02,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:02,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:02,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:02,197 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 01:09:02,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:02,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630629330] [2023-12-16 01:09:02,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630629330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:02,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:02,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:09:02,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136472727] [2023-12-16 01:09:02,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:02,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:09:02,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:02,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:09:02,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:09:02,199 INFO L87 Difference]: Start difference. First operand 1239 states and 1712 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 01:09:02,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:02,897 INFO L93 Difference]: Finished difference Result 3199 states and 4275 transitions. [2023-12-16 01:09:02,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:09:02,897 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 01:09:02,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:02,904 INFO L225 Difference]: With dead ends: 3199 [2023-12-16 01:09:02,905 INFO L226 Difference]: Without dead ends: 2239 [2023-12-16 01:09:02,907 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 01:09:02,908 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 678 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:02,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1196 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:09:02,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2023-12-16 01:09:02,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 2055. [2023-12-16 01:09:02,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 1593 states have (on average 1.3559322033898304) internal successors, (2160), 1621 states have internal predecessors, (2160), 238 states have call successors, (238), 179 states have call predecessors, (238), 222 states have return successors, (338), 261 states have call predecessors, (338), 236 states have call successors, (338) [2023-12-16 01:09:02,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 2736 transitions. [2023-12-16 01:09:02,984 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 2736 transitions. Word has length 60 [2023-12-16 01:09:02,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:02,984 INFO L495 AbstractCegarLoop]: Abstraction has 2055 states and 2736 transitions. [2023-12-16 01:09:02,984 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 01:09:02,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 2736 transitions. [2023-12-16 01:09:02,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 01:09:02,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:02,987 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 01:09:02,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 01:09:02,987 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:02,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:02,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1237786849, now seen corresponding path program 1 times [2023-12-16 01:09:02,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:02,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211529247] [2023-12-16 01:09:02,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:02,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,045 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 01:09:03,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:03,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211529247] [2023-12-16 01:09:03,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211529247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:03,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:03,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:09:03,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992010468] [2023-12-16 01:09:03,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:03,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:09:03,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:03,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:09:03,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:09:03,047 INFO L87 Difference]: Start difference. First operand 2055 states and 2736 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 01:09:03,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:03,700 INFO L93 Difference]: Finished difference Result 4719 states and 6140 transitions. [2023-12-16 01:09:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:09:03,701 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 01:09:03,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:03,710 INFO L225 Difference]: With dead ends: 4719 [2023-12-16 01:09:03,711 INFO L226 Difference]: Without dead ends: 2963 [2023-12-16 01:09:03,713 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 01:09:03,715 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1087 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:03,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 1039 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:09:03,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2023-12-16 01:09:03,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 2721. [2023-12-16 01:09:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2721 states, 2095 states have (on average 1.3355608591885442) internal successors, (2798), 2131 states have internal predecessors, (2798), 318 states have call successors, (318), 249 states have call predecessors, (318), 306 states have return successors, (447), 347 states have call predecessors, (447), 316 states have call successors, (447) [2023-12-16 01:09:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3563 transitions. [2023-12-16 01:09:03,828 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3563 transitions. Word has length 66 [2023-12-16 01:09:03,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:03,829 INFO L495 AbstractCegarLoop]: Abstraction has 2721 states and 3563 transitions. [2023-12-16 01:09:03,829 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 01:09:03,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3563 transitions. [2023-12-16 01:09:03,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 01:09:03,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:03,833 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 01:09:03,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:09:03,833 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:03,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:03,834 INFO L85 PathProgramCache]: Analyzing trace with hash -233405929, now seen corresponding path program 1 times [2023-12-16 01:09:03,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:03,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753811118] [2023-12-16 01:09:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:03,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,901 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 01:09:03,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:03,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753811118] [2023-12-16 01:09:03,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753811118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:03,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:03,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:03,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44281054] [2023-12-16 01:09:03,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:03,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:03,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:03,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:03,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:03,903 INFO L87 Difference]: Start difference. First operand 2721 states and 3563 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 01:09:04,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:04,670 INFO L93 Difference]: Finished difference Result 3441 states and 4440 transitions. [2023-12-16 01:09:04,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 01:09:04,670 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 01:09:04,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:04,681 INFO L225 Difference]: With dead ends: 3441 [2023-12-16 01:09:04,681 INFO L226 Difference]: Without dead ends: 3438 [2023-12-16 01:09:04,682 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 01:09:04,682 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1642 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:04,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 1013 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:09:04,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3438 states. [2023-12-16 01:09:04,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3438 to 3171. [2023-12-16 01:09:04,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 2436 states have (on average 1.3243021346469623) internal successors, (3226), 2477 states have internal predecessors, (3226), 368 states have call successors, (368), 293 states have call predecessors, (368), 365 states have return successors, (526), 407 states have call predecessors, (526), 367 states have call successors, (526) [2023-12-16 01:09:04,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 4120 transitions. [2023-12-16 01:09:04,958 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 4120 transitions. Word has length 67 [2023-12-16 01:09:04,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:04,958 INFO L495 AbstractCegarLoop]: Abstraction has 3171 states and 4120 transitions. [2023-12-16 01:09:04,958 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 01:09:04,958 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 4120 transitions. [2023-12-16 01:09:04,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 01:09:04,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:04,959 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 01:09:04,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 01:09:04,972 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:04,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:04,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1353127529, now seen corresponding path program 1 times [2023-12-16 01:09:04,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:04,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374849831] [2023-12-16 01:09:04,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:04,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,116 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 01:09:05,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:05,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374849831] [2023-12-16 01:09:05,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374849831] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:09:05,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374020477] [2023-12-16 01:09:05,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:05,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:09:05,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:09:05,142 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 01:09:05,173 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 01:09:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 01:09:05,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:09:05,451 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 01:09:05,451 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 01:09:05,517 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 01:09:05,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374020477] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 01:09:05,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 01:09:05,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2023-12-16 01:09:05,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778093122] [2023-12-16 01:09:05,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 01:09:05,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:09:05,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:05,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:09:05,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:09:05,519 INFO L87 Difference]: Start difference. First operand 3171 states and 4120 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 01:09:07,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:07,065 INFO L93 Difference]: Finished difference Result 7238 states and 9232 transitions. [2023-12-16 01:09:07,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 01:09:07,065 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 01:09:07,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:07,091 INFO L225 Difference]: With dead ends: 7238 [2023-12-16 01:09:07,092 INFO L226 Difference]: Without dead ends: 7235 [2023-12-16 01:09:07,093 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 01:09:07,094 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 2022 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 2161 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 2030 SdHoareTripleChecker+Invalid, 2389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:07,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2091 Valid, 2030 Invalid, 2389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2161 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 01:09:07,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7235 states. [2023-12-16 01:09:07,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7235 to 4797. [2023-12-16 01:09:07,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4797 states, 3676 states have (on average 1.3161044613710555) internal successors, (4838), 3739 states have internal predecessors, (4838), 552 states have call successors, (552), 451 states have call predecessors, (552), 567 states have return successors, (804), 613 states have call predecessors, (804), 551 states have call successors, (804) [2023-12-16 01:09:07,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4797 states to 4797 states and 6194 transitions. [2023-12-16 01:09:07,345 INFO L78 Accepts]: Start accepts. Automaton has 4797 states and 6194 transitions. Word has length 68 [2023-12-16 01:09:07,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:07,345 INFO L495 AbstractCegarLoop]: Abstraction has 4797 states and 6194 transitions. [2023-12-16 01:09:07,346 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 01:09:07,346 INFO L276 IsEmpty]: Start isEmpty. Operand 4797 states and 6194 transitions. [2023-12-16 01:09:07,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 01:09:07,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:07,347 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 01:09:07,353 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 01:09:07,552 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,SelfDestructingSolverStorable10 [2023-12-16 01:09:07,552 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:07,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:07,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1341145367, now seen corresponding path program 2 times [2023-12-16 01:09:07,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:07,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643791146] [2023-12-16 01:09:07,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:07,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,620 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 01:09:07,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:07,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643791146] [2023-12-16 01:09:07,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643791146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:07,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:07,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:09:07,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657587643] [2023-12-16 01:09:07,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:07,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:09:07,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:07,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:09:07,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:09:07,622 INFO L87 Difference]: Start difference. First operand 4797 states and 6194 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 01:09:08,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:08,331 INFO L93 Difference]: Finished difference Result 7253 states and 9341 transitions. [2023-12-16 01:09:08,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 01:09:08,332 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 01:09:08,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:08,343 INFO L225 Difference]: With dead ends: 7253 [2023-12-16 01:09:08,343 INFO L226 Difference]: Without dead ends: 3550 [2023-12-16 01:09:08,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:09:08,350 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1014 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:08,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 1108 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:09:08,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2023-12-16 01:09:08,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3321. [2023-12-16 01:09:08,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3321 states, 2556 states have (on average 1.3028169014084507) internal successors, (3330), 2597 states have internal predecessors, (3330), 384 states have call successors, (384), 307 states have call predecessors, (384), 379 states have return successors, (530), 423 states have call predecessors, (530), 383 states have call successors, (530) [2023-12-16 01:09:08,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3321 states to 3321 states and 4244 transitions. [2023-12-16 01:09:08,544 INFO L78 Accepts]: Start accepts. Automaton has 3321 states and 4244 transitions. Word has length 71 [2023-12-16 01:09:08,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:08,544 INFO L495 AbstractCegarLoop]: Abstraction has 3321 states and 4244 transitions. [2023-12-16 01:09:08,545 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 01:09:08,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3321 states and 4244 transitions. [2023-12-16 01:09:08,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 01:09:08,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:08,547 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 01:09:08,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 01:09:08,547 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:08,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:08,547 INFO L85 PathProgramCache]: Analyzing trace with hash -721004812, now seen corresponding path program 1 times [2023-12-16 01:09:08,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:08,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978011163] [2023-12-16 01:09:08,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:08,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 01:09:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,625 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 01:09:08,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:08,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978011163] [2023-12-16 01:09:08,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978011163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:08,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:08,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:09:08,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686805344] [2023-12-16 01:09:08,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:08,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:09:08,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:08,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:09:08,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:09:08,627 INFO L87 Difference]: Start difference. First operand 3321 states and 4244 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 01:09:09,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:09,880 INFO L93 Difference]: Finished difference Result 9619 states and 12087 transitions. [2023-12-16 01:09:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 01:09:09,881 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 01:09:09,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:09,907 INFO L225 Difference]: With dead ends: 9619 [2023-12-16 01:09:09,907 INFO L226 Difference]: Without dead ends: 5382 [2023-12-16 01:09:09,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-12-16 01:09:09,915 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 888 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:09,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 1806 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:09:09,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5382 states. [2023-12-16 01:09:10,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5382 to 5062. [2023-12-16 01:09:10,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5062 states, 3840 states have (on average 1.2705729166666666) internal successors, (4879), 3924 states have internal predecessors, (4879), 588 states have call successors, (588), 481 states have call predecessors, (588), 632 states have return successors, (912), 663 states have call predecessors, (912), 587 states have call successors, (912) [2023-12-16 01:09:10,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5062 states to 5062 states and 6379 transitions. [2023-12-16 01:09:10,194 INFO L78 Accepts]: Start accepts. Automaton has 5062 states and 6379 transitions. Word has length 76 [2023-12-16 01:09:10,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:10,194 INFO L495 AbstractCegarLoop]: Abstraction has 5062 states and 6379 transitions. [2023-12-16 01:09:10,194 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 01:09:10,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5062 states and 6379 transitions. [2023-12-16 01:09:10,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 01:09:10,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:10,197 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 01:09:10,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 01:09:10,197 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:10,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:10,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1232284266, now seen corresponding path program 1 times [2023-12-16 01:09:10,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:10,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275235745] [2023-12-16 01:09:10,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:10,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:10,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:10,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:10,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:10,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:10,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:10,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:10,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 01:09:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:10,278 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 01:09:10,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:10,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275235745] [2023-12-16 01:09:10,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275235745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:10,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:10,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:09:10,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003280537] [2023-12-16 01:09:10,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:10,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:09:10,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:10,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:09:10,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:09:10,280 INFO L87 Difference]: Start difference. First operand 5062 states and 6379 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 01:09:11,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:11,556 INFO L93 Difference]: Finished difference Result 8733 states and 10887 transitions. [2023-12-16 01:09:11,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 01:09:11,556 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 01:09:11,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:11,567 INFO L225 Difference]: With dead ends: 8733 [2023-12-16 01:09:11,567 INFO L226 Difference]: Without dead ends: 4553 [2023-12-16 01:09:11,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2023-12-16 01:09:11,574 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 1652 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 1871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:11,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 1571 Invalid, 1871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:09:11,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4553 states. [2023-12-16 01:09:11,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4553 to 4219. [2023-12-16 01:09:11,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4219 states, 3210 states have (on average 1.2644859813084113) internal successors, (4059), 3276 states have internal predecessors, (4059), 489 states have call successors, (489), 396 states have call predecessors, (489), 518 states have return successors, (690), 553 states have call predecessors, (690), 488 states have call successors, (690) [2023-12-16 01:09:11,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4219 states to 4219 states and 5238 transitions. [2023-12-16 01:09:11,760 INFO L78 Accepts]: Start accepts. Automaton has 4219 states and 5238 transitions. Word has length 86 [2023-12-16 01:09:11,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:11,760 INFO L495 AbstractCegarLoop]: Abstraction has 4219 states and 5238 transitions. [2023-12-16 01:09:11,760 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 01:09:11,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4219 states and 5238 transitions. [2023-12-16 01:09:11,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:11,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:11,764 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 01:09:11,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 01:09:11,764 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:11,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:11,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1186992252, now seen corresponding path program 1 times [2023-12-16 01:09:11,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:11,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261006954] [2023-12-16 01:09:11,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:11,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 01:09:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 01:09:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 01:09:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 01:09:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 01:09:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 01:09:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 01:09:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,893 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 01:09:11,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:11,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261006954] [2023-12-16 01:09:11,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261006954] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:09:11,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304849148] [2023-12-16 01:09:11,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:11,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:09:11,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:09:11,895 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 01:09:11,921 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 01:09:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 01:09:12,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:09:12,057 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 01:09:12,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:09:12,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304849148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:12,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:09:12,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2023-12-16 01:09:12,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939059491] [2023-12-16 01:09:12,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:12,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:09:12,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:12,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:09:12,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 01:09:12,060 INFO L87 Difference]: Start difference. First operand 4219 states and 5238 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 01:09:12,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:12,258 INFO L93 Difference]: Finished difference Result 6191 states and 7667 transitions. [2023-12-16 01:09:12,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:12,259 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 01:09:12,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:12,270 INFO L225 Difference]: With dead ends: 6191 [2023-12-16 01:09:12,270 INFO L226 Difference]: Without dead ends: 2275 [2023-12-16 01:09:12,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-12-16 01:09:12,278 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 32 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:12,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2594 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 01:09:12,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2023-12-16 01:09:12,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2150. [2023-12-16 01:09:12,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 1718 states have (on average 1.280558789289872) internal successors, (2200), 1733 states have internal predecessors, (2200), 213 states have call successors, (213), 162 states have call predecessors, (213), 217 states have return successors, (297), 255 states have call predecessors, (297), 212 states have call successors, (297) [2023-12-16 01:09:12,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 2710 transitions. [2023-12-16 01:09:12,373 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 2710 transitions. Word has length 131 [2023-12-16 01:09:12,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:12,373 INFO L495 AbstractCegarLoop]: Abstraction has 2150 states and 2710 transitions. [2023-12-16 01:09:12,373 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 01:09:12,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 2710 transitions. [2023-12-16 01:09:12,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 01:09:12,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:12,377 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 01:09:12,383 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 01:09:12,582 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,SelfDestructingSolverStorable14 [2023-12-16 01:09:12,583 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:12,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:12,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1882460170, now seen corresponding path program 1 times [2023-12-16 01:09:12,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:12,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678545582] [2023-12-16 01:09:12,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:12,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 01:09:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 01:09:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 01:09:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 01:09:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 01:09:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 01:09:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,636 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 01:09:12,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:12,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678545582] [2023-12-16 01:09:12,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678545582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:12,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:12,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:09:12,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255526233] [2023-12-16 01:09:12,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:12,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:09:12,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:12,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:09:12,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:09:12,638 INFO L87 Difference]: Start difference. First operand 2150 states and 2710 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 01:09:13,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:13,204 INFO L93 Difference]: Finished difference Result 2215 states and 2778 transitions. [2023-12-16 01:09:13,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:13,204 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 01:09:13,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:13,208 INFO L225 Difference]: With dead ends: 2215 [2023-12-16 01:09:13,208 INFO L226 Difference]: Without dead ends: 1813 [2023-12-16 01:09:13,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 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 01:09:13,209 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 599 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:13,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1149 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:09:13,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2023-12-16 01:09:13,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1751. [2023-12-16 01:09:13,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1415 states have (on average 1.2982332155477032) internal successors, (1837), 1427 states have internal predecessors, (1837), 167 states have call successors, (167), 122 states have call predecessors, (167), 167 states have return successors, (233), 202 states have call predecessors, (233), 166 states have call successors, (233) [2023-12-16 01:09:13,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2237 transitions. [2023-12-16 01:09:13,318 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2237 transitions. Word has length 133 [2023-12-16 01:09:13,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:13,318 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2237 transitions. [2023-12-16 01:09:13,318 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 01:09:13,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2237 transitions. [2023-12-16 01:09:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:13,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:13,320 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] [2023-12-16 01:09:13,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 01:09:13,321 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:13,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:13,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1909011415, now seen corresponding path program 1 times [2023-12-16 01:09:13,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:13,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210060086] [2023-12-16 01:09:13,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:13,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:13,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:13,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:13,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:13,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:13,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:13,428 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 01:09:13,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:13,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210060086] [2023-12-16 01:09:13,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210060086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:13,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:13,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 01:09:13,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527678041] [2023-12-16 01:09:13,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:13,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 01:09:13,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:13,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 01:09:13,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:09:13,430 INFO L87 Difference]: Start difference. First operand 1751 states and 2237 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:14,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:14,664 INFO L93 Difference]: Finished difference Result 2122 states and 2853 transitions. [2023-12-16 01:09:14,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:14,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2023-12-16 01:09:14,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:14,668 INFO L225 Difference]: With dead ends: 2122 [2023-12-16 01:09:14,668 INFO L226 Difference]: Without dead ends: 1851 [2023-12-16 01:09:14,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:09:14,670 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 856 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:14,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 703 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:09:14,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2023-12-16 01:09:14,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1751. [2023-12-16 01:09:14,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1415 states have (on average 1.2975265017667845) internal successors, (1836), 1427 states have internal predecessors, (1836), 167 states have call successors, (167), 122 states have call predecessors, (167), 167 states have return successors, (233), 202 states have call predecessors, (233), 166 states have call successors, (233) [2023-12-16 01:09:14,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2236 transitions. [2023-12-16 01:09:14,800 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2236 transitions. Word has length 131 [2023-12-16 01:09:14,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:14,801 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2236 transitions. [2023-12-16 01:09:14,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:14,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2236 transitions. [2023-12-16 01:09:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:14,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:14,808 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] [2023-12-16 01:09:14,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 01:09:14,809 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:14,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:14,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1524122279, now seen corresponding path program 1 times [2023-12-16 01:09:14,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:14,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43300316] [2023-12-16 01:09:14,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:14,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,945 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 01:09:14,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:14,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43300316] [2023-12-16 01:09:14,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43300316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:14,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:14,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:09:14,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871559828] [2023-12-16 01:09:14,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:14,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:09:14,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:14,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:09:14,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:09:14,947 INFO L87 Difference]: Start difference. First operand 1751 states and 2236 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 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 01:09:16,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:16,879 INFO L93 Difference]: Finished difference Result 2488 states and 3460 transitions. [2023-12-16 01:09:16,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:09:16,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 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 131 [2023-12-16 01:09:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:16,885 INFO L225 Difference]: With dead ends: 2488 [2023-12-16 01:09:16,885 INFO L226 Difference]: Without dead ends: 2226 [2023-12-16 01:09:16,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:16,886 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 1355 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:16,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 1024 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:09:16,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2023-12-16 01:09:17,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 2027. [2023-12-16 01:09:17,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1666 states have (on average 1.3487394957983194) internal successors, (2247), 1679 states have internal predecessors, (2247), 185 states have call successors, (185), 128 states have call predecessors, (185), 174 states have return successors, (254), 220 states have call predecessors, (254), 184 states have call successors, (254) [2023-12-16 01:09:17,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2686 transitions. [2023-12-16 01:09:17,008 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2686 transitions. Word has length 131 [2023-12-16 01:09:17,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:17,008 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 2686 transitions. [2023-12-16 01:09:17,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 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 01:09:17,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2686 transitions. [2023-12-16 01:09:17,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:17,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:17,011 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] [2023-12-16 01:09:17,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 01:09:17,011 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:17,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:17,011 INFO L85 PathProgramCache]: Analyzing trace with hash -384168533, now seen corresponding path program 1 times [2023-12-16 01:09:17,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:17,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830305708] [2023-12-16 01:09:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:17,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,178 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 01:09:17,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:17,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830305708] [2023-12-16 01:09:17,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830305708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:17,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:17,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:17,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583654425] [2023-12-16 01:09:17,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:17,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:17,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:17,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:17,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:17,180 INFO L87 Difference]: Start difference. First operand 2027 states and 2686 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:19,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:19,758 INFO L93 Difference]: Finished difference Result 3153 states and 4554 transitions. [2023-12-16 01:09:19,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:09:19,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2023-12-16 01:09:19,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:19,763 INFO L225 Difference]: With dead ends: 3153 [2023-12-16 01:09:19,763 INFO L226 Difference]: Without dead ends: 2615 [2023-12-16 01:09:19,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:09:19,765 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 1453 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 2780 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:19,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 1342 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 2780 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 01:09:19,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2023-12-16 01:09:19,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 2282. [2023-12-16 01:09:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 1896 states have (on average 1.379746835443038) internal successors, (2616), 1910 states have internal predecessors, (2616), 203 states have call successors, (203), 134 states have call predecessors, (203), 181 states have return successors, (274), 239 states have call predecessors, (274), 202 states have call successors, (274) [2023-12-16 01:09:19,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 3093 transitions. [2023-12-16 01:09:19,967 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 3093 transitions. Word has length 131 [2023-12-16 01:09:19,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:19,967 INFO L495 AbstractCegarLoop]: Abstraction has 2282 states and 3093 transitions. [2023-12-16 01:09:19,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:19,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 3093 transitions. [2023-12-16 01:09:19,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:19,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:19,970 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] [2023-12-16 01:09:19,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 01:09:19,970 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:19,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:19,971 INFO L85 PathProgramCache]: Analyzing trace with hash 87187817, now seen corresponding path program 1 times [2023-12-16 01:09:19,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:19,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523019231] [2023-12-16 01:09:19,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:19,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,131 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 01:09:20,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:20,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523019231] [2023-12-16 01:09:20,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523019231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:20,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:20,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:20,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609611842] [2023-12-16 01:09:20,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:20,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:20,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:20,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:20,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:20,133 INFO L87 Difference]: Start difference. First operand 2282 states and 3093 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:22,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:22,698 INFO L93 Difference]: Finished difference Result 4127 states and 6147 transitions. [2023-12-16 01:09:22,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:09:22,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2023-12-16 01:09:22,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:22,709 INFO L225 Difference]: With dead ends: 4127 [2023-12-16 01:09:22,709 INFO L226 Difference]: Without dead ends: 3334 [2023-12-16 01:09:22,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:09:22,716 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 1384 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 3135 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 3226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:22,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1410 Valid, 1815 Invalid, 3226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3135 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 01:09:22,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2023-12-16 01:09:22,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 2793. [2023-12-16 01:09:22,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2357 states have (on average 1.4234196011879507) internal successors, (3355), 2373 states have internal predecessors, (3355), 239 states have call successors, (239), 146 states have call predecessors, (239), 195 states have return successors, (318), 277 states have call predecessors, (318), 238 states have call successors, (318) [2023-12-16 01:09:22,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3912 transitions. [2023-12-16 01:09:22,879 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3912 transitions. Word has length 131 [2023-12-16 01:09:22,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:22,879 INFO L495 AbstractCegarLoop]: Abstraction has 2793 states and 3912 transitions. [2023-12-16 01:09:22,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3912 transitions. [2023-12-16 01:09:22,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:22,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:22,882 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] [2023-12-16 01:09:22,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 01:09:22,882 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:22,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:22,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1560175125, now seen corresponding path program 1 times [2023-12-16 01:09:22,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:22,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103719227] [2023-12-16 01:09:22,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:22,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:22,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:22,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:23,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:23,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:23,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:23,046 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 01:09:23,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:23,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103719227] [2023-12-16 01:09:23,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103719227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:23,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:23,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:23,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183397829] [2023-12-16 01:09:23,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:23,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:23,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:23,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:23,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:23,049 INFO L87 Difference]: Start difference. First operand 2793 states and 3912 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:24,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:24,294 INFO L93 Difference]: Finished difference Result 4628 states and 6959 transitions. [2023-12-16 01:09:24,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:24,294 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2023-12-16 01:09:24,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:24,301 INFO L225 Difference]: With dead ends: 4628 [2023-12-16 01:09:24,301 INFO L226 Difference]: Without dead ends: 3324 [2023-12-16 01:09:24,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:24,304 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1218 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:24,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 868 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:09:24,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2023-12-16 01:09:24,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 2793. [2023-12-16 01:09:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2357 states have (on average 1.4212982605006363) internal successors, (3350), 2373 states have internal predecessors, (3350), 239 states have call successors, (239), 146 states have call predecessors, (239), 195 states have return successors, (318), 277 states have call predecessors, (318), 238 states have call successors, (318) [2023-12-16 01:09:24,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3907 transitions. [2023-12-16 01:09:24,488 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3907 transitions. Word has length 131 [2023-12-16 01:09:24,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:24,488 INFO L495 AbstractCegarLoop]: Abstraction has 2793 states and 3907 transitions. [2023-12-16 01:09:24,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:24,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3907 transitions. [2023-12-16 01:09:24,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:24,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:24,491 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] [2023-12-16 01:09:24,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 01:09:24,491 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:24,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:24,492 INFO L85 PathProgramCache]: Analyzing trace with hash 603441449, now seen corresponding path program 1 times [2023-12-16 01:09:24,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:24,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112644475] [2023-12-16 01:09:24,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:24,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:24,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:24,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:24,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:24,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:24,613 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 01:09:24,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:24,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112644475] [2023-12-16 01:09:24,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112644475] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:24,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:24,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:24,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556253722] [2023-12-16 01:09:24,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:24,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:24,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:24,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:24,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:24,614 INFO L87 Difference]: Start difference. First operand 2793 states and 3907 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:25,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:25,890 INFO L93 Difference]: Finished difference Result 4622 states and 6933 transitions. [2023-12-16 01:09:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:25,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2023-12-16 01:09:25,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:25,897 INFO L225 Difference]: With dead ends: 4622 [2023-12-16 01:09:25,897 INFO L226 Difference]: Without dead ends: 3318 [2023-12-16 01:09:25,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:25,900 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1216 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:25,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 868 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:09:25,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2023-12-16 01:09:26,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 2793. [2023-12-16 01:09:26,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2357 states have (on average 1.419176919813322) internal successors, (3345), 2373 states have internal predecessors, (3345), 239 states have call successors, (239), 146 states have call predecessors, (239), 195 states have return successors, (318), 277 states have call predecessors, (318), 238 states have call successors, (318) [2023-12-16 01:09:26,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3902 transitions. [2023-12-16 01:09:26,090 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3902 transitions. Word has length 131 [2023-12-16 01:09:26,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:26,091 INFO L495 AbstractCegarLoop]: Abstraction has 2793 states and 3902 transitions. [2023-12-16 01:09:26,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:26,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3902 transitions. [2023-12-16 01:09:26,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:26,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:26,094 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] [2023-12-16 01:09:26,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 01:09:26,094 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:26,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:26,094 INFO L85 PathProgramCache]: Analyzing trace with hash -435143125, now seen corresponding path program 1 times [2023-12-16 01:09:26,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:26,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707567832] [2023-12-16 01:09:26,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:26,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:26,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:26,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:26,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:26,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:26,222 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 01:09:26,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:26,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707567832] [2023-12-16 01:09:26,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707567832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:26,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:26,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:26,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134866244] [2023-12-16 01:09:26,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:26,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:26,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:26,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:26,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:26,225 INFO L87 Difference]: Start difference. First operand 2793 states and 3902 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:27,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:27,706 INFO L93 Difference]: Finished difference Result 4615 states and 6905 transitions. [2023-12-16 01:09:27,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:27,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2023-12-16 01:09:27,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:27,713 INFO L225 Difference]: With dead ends: 4615 [2023-12-16 01:09:27,713 INFO L226 Difference]: Without dead ends: 3311 [2023-12-16 01:09:27,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:27,716 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1047 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:27,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 1041 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 01:09:27,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3311 states. [2023-12-16 01:09:27,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3311 to 2793. [2023-12-16 01:09:27,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2357 states have (on average 1.4170555791260075) internal successors, (3340), 2373 states have internal predecessors, (3340), 239 states have call successors, (239), 146 states have call predecessors, (239), 195 states have return successors, (318), 277 states have call predecessors, (318), 238 states have call successors, (318) [2023-12-16 01:09:27,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3897 transitions. [2023-12-16 01:09:27,879 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3897 transitions. Word has length 131 [2023-12-16 01:09:27,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:27,879 INFO L495 AbstractCegarLoop]: Abstraction has 2793 states and 3897 transitions. [2023-12-16 01:09:27,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:27,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3897 transitions. [2023-12-16 01:09:27,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:27,884 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:27,885 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] [2023-12-16 01:09:27,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 01:09:27,885 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:27,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:27,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1886658793, now seen corresponding path program 1 times [2023-12-16 01:09:27,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:27,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747093895] [2023-12-16 01:09:27,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:27,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:27,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:27,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:28,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:28,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:28,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:28,018 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 01:09:28,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:28,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747093895] [2023-12-16 01:09:28,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747093895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:28,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:28,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:28,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415193731] [2023-12-16 01:09:28,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:28,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:28,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:28,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:28,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:28,020 INFO L87 Difference]: Start difference. First operand 2793 states and 3897 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:30,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:30,726 INFO L93 Difference]: Finished difference Result 5971 states and 9074 transitions. [2023-12-16 01:09:30,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:09:30,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2023-12-16 01:09:30,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:30,735 INFO L225 Difference]: With dead ends: 5971 [2023-12-16 01:09:30,735 INFO L226 Difference]: Without dead ends: 4667 [2023-12-16 01:09:30,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:09:30,738 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 1358 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 3055 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 3146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:30,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 1815 Invalid, 3146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3055 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 01:09:30,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4667 states. [2023-12-16 01:09:30,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4667 to 3828. [2023-12-16 01:09:30,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3828 states, 3292 states have (on average 1.4644592952612394) internal successors, (4821), 3312 states have internal predecessors, (4821), 311 states have call successors, (311), 170 states have call predecessors, (311), 223 states have return successors, (412), 353 states have call predecessors, (412), 310 states have call successors, (412) [2023-12-16 01:09:30,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3828 states to 3828 states and 5544 transitions. [2023-12-16 01:09:30,986 INFO L78 Accepts]: Start accepts. Automaton has 3828 states and 5544 transitions. Word has length 131 [2023-12-16 01:09:30,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:30,986 INFO L495 AbstractCegarLoop]: Abstraction has 3828 states and 5544 transitions. [2023-12-16 01:09:30,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:30,986 INFO L276 IsEmpty]: Start isEmpty. Operand 3828 states and 5544 transitions. [2023-12-16 01:09:30,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:30,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:30,990 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] [2023-12-16 01:09:30,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 01:09:30,990 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:30,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:30,990 INFO L85 PathProgramCache]: Analyzing trace with hash -255201685, now seen corresponding path program 1 times [2023-12-16 01:09:30,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:30,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617170338] [2023-12-16 01:09:30,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:30,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,127 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 01:09:31,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:31,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617170338] [2023-12-16 01:09:31,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617170338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:31,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:31,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:31,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361287924] [2023-12-16 01:09:31,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:31,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:31,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:31,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:31,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:31,128 INFO L87 Difference]: Start difference. First operand 3828 states and 5544 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:33,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:33,894 INFO L93 Difference]: Finished difference Result 9692 states and 15083 transitions. [2023-12-16 01:09:33,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:09:33,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2023-12-16 01:09:33,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:33,912 INFO L225 Difference]: With dead ends: 9692 [2023-12-16 01:09:33,912 INFO L226 Difference]: Without dead ends: 7353 [2023-12-16 01:09:33,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:09:33,920 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 1354 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 3027 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 3118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:33,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 1815 Invalid, 3118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3027 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 01:09:33,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7353 states. [2023-12-16 01:09:34,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7353 to 5907. [2023-12-16 01:09:34,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5907 states, 5171 states have (on average 1.507832140785148) internal successors, (7797), 5199 states have internal predecessors, (7797), 455 states have call successors, (455), 218 states have call predecessors, (455), 279 states have return successors, (618), 505 states have call predecessors, (618), 454 states have call successors, (618) [2023-12-16 01:09:34,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 8870 transitions. [2023-12-16 01:09:34,239 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 8870 transitions. Word has length 131 [2023-12-16 01:09:34,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:34,239 INFO L495 AbstractCegarLoop]: Abstraction has 5907 states and 8870 transitions. [2023-12-16 01:09:34,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:34,239 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 8870 transitions. [2023-12-16 01:09:34,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:34,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:34,243 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] [2023-12-16 01:09:34,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 01:09:34,243 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:34,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:34,243 INFO L85 PathProgramCache]: Analyzing trace with hash -136760211, now seen corresponding path program 1 times [2023-12-16 01:09:34,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:34,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329863492] [2023-12-16 01:09:34,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:34,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:34,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:34,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:34,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:34,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:34,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:34,409 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 01:09:34,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:34,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329863492] [2023-12-16 01:09:34,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329863492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:34,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:34,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:09:34,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025441003] [2023-12-16 01:09:34,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:34,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:09:34,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:34,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:09:34,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:09:34,410 INFO L87 Difference]: Start difference. First operand 5907 states and 8870 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 7 states have internal predecessors, (121), 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 01:09:37,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:37,601 INFO L93 Difference]: Finished difference Result 18731 states and 29959 transitions. [2023-12-16 01:09:37,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 01:09:37,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 7 states have internal predecessors, (121), 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 131 [2023-12-16 01:09:37,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:37,648 INFO L225 Difference]: With dead ends: 18731 [2023-12-16 01:09:37,648 INFO L226 Difference]: Without dead ends: 14313 [2023-12-16 01:09:37,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2023-12-16 01:09:37,659 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1768 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 3557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 3683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 3557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:37,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 1802 Invalid, 3683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 3557 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 01:09:37,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14313 states. [2023-12-16 01:09:38,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14313 to 10144. [2023-12-16 01:09:38,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10144 states, 9008 states have (on average 1.5356349911190053) internal successors, (13833), 9052 states have internal predecessors, (13833), 743 states have call successors, (743), 314 states have call predecessors, (743), 391 states have return successors, (1084), 809 states have call predecessors, (1084), 742 states have call successors, (1084) [2023-12-16 01:09:38,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10144 states to 10144 states and 15660 transitions. [2023-12-16 01:09:38,155 INFO L78 Accepts]: Start accepts. Automaton has 10144 states and 15660 transitions. Word has length 131 [2023-12-16 01:09:38,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:38,155 INFO L495 AbstractCegarLoop]: Abstraction has 10144 states and 15660 transitions. [2023-12-16 01:09:38,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 7 states have internal predecessors, (121), 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 01:09:38,155 INFO L276 IsEmpty]: Start isEmpty. Operand 10144 states and 15660 transitions. [2023-12-16 01:09:38,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:38,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:38,162 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] [2023-12-16 01:09:38,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 01:09:38,162 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:38,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:38,163 INFO L85 PathProgramCache]: Analyzing trace with hash -824803095, now seen corresponding path program 1 times [2023-12-16 01:09:38,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:38,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006271929] [2023-12-16 01:09:38,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:38,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:38,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:38,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:38,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:38,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:38,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:38,341 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 01:09:38,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:38,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006271929] [2023-12-16 01:09:38,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006271929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:38,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:38,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:38,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452732336] [2023-12-16 01:09:38,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:38,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:38,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:38,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:38,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:38,343 INFO L87 Difference]: Start difference. First operand 10144 states and 15660 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:41,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:41,180 INFO L93 Difference]: Finished difference Result 36222 states and 58013 transitions. [2023-12-16 01:09:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:09:41,180 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2023-12-16 01:09:41,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:41,248 INFO L225 Difference]: With dead ends: 36222 [2023-12-16 01:09:41,248 INFO L226 Difference]: Without dead ends: 27567 [2023-12-16 01:09:41,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:41,268 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 1435 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 3537 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 3630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:41,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 1808 Invalid, 3630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3537 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 01:09:41,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27567 states. [2023-12-16 01:09:42,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27567 to 18517. [2023-12-16 01:09:42,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18517 states, 16613 states have (on average 1.5560705471618612) internal successors, (25851), 16689 states have internal predecessors, (25851), 1287 states have call successors, (1287), 506 states have call predecessors, (1287), 615 states have return successors, (2146), 1385 states have call predecessors, (2146), 1286 states have call successors, (2146) [2023-12-16 01:09:42,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18517 states to 18517 states and 29284 transitions. [2023-12-16 01:09:42,260 INFO L78 Accepts]: Start accepts. Automaton has 18517 states and 29284 transitions. Word has length 131 [2023-12-16 01:09:42,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:42,261 INFO L495 AbstractCegarLoop]: Abstraction has 18517 states and 29284 transitions. [2023-12-16 01:09:42,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:42,261 INFO L276 IsEmpty]: Start isEmpty. Operand 18517 states and 29284 transitions. [2023-12-16 01:09:42,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:42,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:42,271 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] [2023-12-16 01:09:42,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 01:09:42,271 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:42,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:42,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1436770155, now seen corresponding path program 1 times [2023-12-16 01:09:42,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:42,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232956561] [2023-12-16 01:09:42,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:42,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:42,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:42,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:42,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:42,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:42,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:42,434 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 01:09:42,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:42,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232956561] [2023-12-16 01:09:42,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232956561] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:42,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:42,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:42,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481215788] [2023-12-16 01:09:42,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:42,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:42,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:42,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:42,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:42,435 INFO L87 Difference]: Start difference. First operand 18517 states and 29284 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:45,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:45,921 INFO L93 Difference]: Finished difference Result 69305 states and 112387 transitions. [2023-12-16 01:09:45,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:09:45,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2023-12-16 01:09:45,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:46,057 INFO L225 Difference]: With dead ends: 69305 [2023-12-16 01:09:46,057 INFO L226 Difference]: Without dead ends: 52277 [2023-12-16 01:09:46,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:46,091 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 1644 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 2977 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:46,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 1804 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2977 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 01:09:46,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52277 states. [2023-12-16 01:09:48,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52277 to 34942. [2023-12-16 01:09:48,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34942 states, 31534 states have (on average 1.5677364114923575) internal successors, (49437), 31674 states have internal predecessors, (49437), 2343 states have call successors, (2343), 890 states have call predecessors, (2343), 1063 states have return successors, (4724), 2505 states have call predecessors, (4724), 2342 states have call successors, (4724) [2023-12-16 01:09:48,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34942 states to 34942 states and 56504 transitions. [2023-12-16 01:09:48,168 INFO L78 Accepts]: Start accepts. Automaton has 34942 states and 56504 transitions. Word has length 131 [2023-12-16 01:09:48,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:48,169 INFO L495 AbstractCegarLoop]: Abstraction has 34942 states and 56504 transitions. [2023-12-16 01:09:48,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:48,169 INFO L276 IsEmpty]: Start isEmpty. Operand 34942 states and 56504 transitions. [2023-12-16 01:09:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 01:09:48,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:48,215 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] [2023-12-16 01:09:48,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-16 01:09:48,215 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:48,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:48,216 INFO L85 PathProgramCache]: Analyzing trace with hash -429938519, now seen corresponding path program 1 times [2023-12-16 01:09:48,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:48,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127614404] [2023-12-16 01:09:48,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:48,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 01:09:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 01:09:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 01:09:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 01:09:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:48,365 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 01:09:48,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:48,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127614404] [2023-12-16 01:09:48,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127614404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:48,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:48,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:48,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600160839] [2023-12-16 01:09:48,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:48,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:48,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:48,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:48,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:48,367 INFO L87 Difference]: Start difference. First operand 34942 states and 56504 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 01:09:52,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:09:52,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:52,172 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 1247 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 2655 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:52,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 1362 Invalid, 2731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2655 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 01:09:52,173 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 01:09:52,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-16 01:09:52,174 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (34942states) and FLOYD_HOARE automaton (currently 15 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (106855 states constructed, input type IntersectNwa). [2023-12-16 01:09:52,175 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 01:09:52,178 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, 1, 1] [2023-12-16 01:09:52,179 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:09:52,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:09:52 BoogieIcfgContainer [2023-12-16 01:09:52,181 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:09:52,181 INFO L158 Benchmark]: Toolchain (without parser) took 58667.56ms. Allocated memory was 324.0MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 269.3MB in the beginning and 1.0GB in the end (delta: -751.8MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 01:09:52,181 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 195.0MB. Free memory is still 144.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:09:52,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.03ms. Allocated memory is still 324.0MB. Free memory was 269.3MB in the beginning and 244.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-16 01:09:52,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.32ms. Allocated memory is still 324.0MB. Free memory was 244.1MB in the beginning and 239.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 01:09:52,182 INFO L158 Benchmark]: Boogie Preprocessor took 82.38ms. Allocated memory is still 324.0MB. Free memory was 239.9MB in the beginning and 234.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 01:09:52,182 INFO L158 Benchmark]: RCFGBuilder took 929.34ms. Allocated memory is still 324.0MB. Free memory was 234.7MB in the beginning and 174.9MB in the end (delta: 59.8MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. [2023-12-16 01:09:52,182 INFO L158 Benchmark]: TraceAbstraction took 57236.98ms. Allocated memory was 324.0MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 174.4MB in the beginning and 1.0GB in the end (delta: -846.7MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 01:09:52,182 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 195.0MB. Free memory is still 144.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 362.03ms. Allocated memory is still 324.0MB. Free memory was 269.3MB in the beginning and 244.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.32ms. Allocated memory is still 324.0MB. Free memory was 244.1MB in the beginning and 239.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 82.38ms. Allocated memory is still 324.0MB. Free memory was 239.9MB in the beginning and 234.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 929.34ms. Allocated memory is still 324.0MB. Free memory was 234.7MB in the beginning and 174.9MB in the end (delta: 59.8MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. * TraceAbstraction took 57236.98ms. Allocated memory was 324.0MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 174.4MB in the beginning and 1.0GB in the end (delta: -846.7MB). Peak memory consumption was 1.4GB. 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 (34942states) and FLOYD_HOARE automaton (currently 15 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (106855 states constructed, input type IntersectNwa). - 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 (34942states) and FLOYD_HOARE automaton (currently 15 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (106855 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 370 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 57.2s, OverallIterations: 29, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 45.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35156 SdHoareTripleChecker+Valid, 29.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34473 mSDsluCounter, 41542 SdHoareTripleChecker+Invalid, 25.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32091 mSDsCounter, 3725 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50181 IncrementalHoareTripleChecker+Invalid, 53906 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3725 mSolverCounterUnsat, 9451 mSDtfsCounter, 50181 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1196 GetRequests, 796 SyntacticMatches, 0 SemanticMatches, 400 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1194 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34942occurred in iteration=28, InterpolantAutomatonStates: 362, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.2s AutomataMinimizationTime, 28 MinimizatonAttempts, 40248 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 3067 NumberOfCodeBlocks, 3067 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 3103 ConstructedInterpolants, 0 QuantifiedInterpolants, 7965 SizeOfPredicates, 1 NumberOfNonLiveVariables, 892 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 32 InterpolantComputations, 28 PerfectInterpolantSequences, 257/267 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 [2023-12-16 01:09:52,192 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 01:09:52,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0