/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.07.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 01:40:47,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 01:40:48,055 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 01:40:48,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 01:40:48,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 01:40:48,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 01:40:48,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 01:40:48,094 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 01:40:48,095 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 01:40:48,095 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 01:40:48,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 01:40:48,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 01:40:48,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 01:40:48,105 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 01:40:48,105 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 01:40:48,105 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 01:40:48,106 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 01:40:48,107 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 01:40:48,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 01:40:48,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 01:40:48,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 01:40:48,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 01:40:48,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 01:40:48,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 01:40:48,109 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 01:40:48,109 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 01:40:48,109 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 01:40:48,109 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 01:40:48,110 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 01:40:48,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 01:40:48,111 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 01:40:48,111 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 01:40:48,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 01:40:48,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 01:40:48,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 01:40:48,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 01:40:48,112 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 01:40:48,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 01:40:48,112 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 01:40:48,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 01:40:48,113 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 01:40:48,113 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 01:40:48,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 01:40:48,113 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 01:40:48,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 01:40:48,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 01:40:48,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 01:40:48,382 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 01:40:48,385 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 01:40:48,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.07.cil-1.c [2023-12-19 01:40:49,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 01:40:49,863 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 01:40:49,863 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.07.cil-1.c [2023-12-19 01:40:49,874 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a1365b34/f3516aa56ae54e339455390dc01f47f9/FLAG4ee75cddd [2023-12-19 01:40:49,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a1365b34/f3516aa56ae54e339455390dc01f47f9 [2023-12-19 01:40:49,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 01:40:49,888 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 01:40:49,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 01:40:49,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 01:40:49,897 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 01:40:49,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:40:49" (1/1) ... [2023-12-19 01:40:49,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c66e90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:49, skipping insertion in model container [2023-12-19 01:40:49,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:40:49" (1/1) ... [2023-12-19 01:40:49,953 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 01:40:50,154 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_3.cil+token_ring.07.cil-1.c[911,924] [2023-12-19 01:40:50,272 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_3.cil+token_ring.07.cil-1.c[8416,8429] [2023-12-19 01:40:50,382 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 01:40:50,397 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 01:40:50,411 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_3.cil+token_ring.07.cil-1.c[911,924] [2023-12-19 01:40:50,427 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_3.cil+token_ring.07.cil-1.c[8416,8429] [2023-12-19 01:40:50,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 01:40:50,485 INFO L206 MainTranslator]: Completed translation [2023-12-19 01:40:50,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50 WrapperNode [2023-12-19 01:40:50,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 01:40:50,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 01:40:50,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 01:40:50,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 01:40:50,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (1/1) ... [2023-12-19 01:40:50,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (1/1) ... [2023-12-19 01:40:50,576 INFO L138 Inliner]: procedures = 69, calls = 82, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 806 [2023-12-19 01:40:50,576 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 01:40:50,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 01:40:50,577 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 01:40:50,577 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 01:40:50,585 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (1/1) ... [2023-12-19 01:40:50,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (1/1) ... [2023-12-19 01:40:50,592 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (1/1) ... [2023-12-19 01:40:50,620 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]. [2023-12-19 01:40:50,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (1/1) ... [2023-12-19 01:40:50,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (1/1) ... [2023-12-19 01:40:50,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (1/1) ... [2023-12-19 01:40:50,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (1/1) ... [2023-12-19 01:40:50,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (1/1) ... [2023-12-19 01:40:50,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (1/1) ... [2023-12-19 01:40:50,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 01:40:50,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 01:40:50,644 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 01:40:50,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 01:40:50,645 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (1/1) ... [2023-12-19 01:40:50,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 01:40:50,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 01:40:50,673 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) [2023-12-19 01:40:50,678 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 [2023-12-19 01:40:50,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 01:40:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-19 01:40:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-19 01:40:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-19 01:40:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-19 01:40:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-19 01:40:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-19 01:40:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-19 01:40:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-19 01:40:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-19 01:40:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-19 01:40:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-19 01:40:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-19 01:40:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-19 01:40:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-19 01:40:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-19 01:40:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-19 01:40:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-19 01:40:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-19 01:40:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-19 01:40:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-19 01:40:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-19 01:40:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-19 01:40:50,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 01:40:50,712 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-19 01:40:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-19 01:40:50,713 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-19 01:40:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-19 01:40:50,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 01:40:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 01:40:50,713 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-19 01:40:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-19 01:40:50,834 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 01:40:50,836 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 01:40:51,453 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2023-12-19 01:40:51,453 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2023-12-19 01:40:51,509 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 01:40:51,548 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 01:40:51,548 INFO L309 CfgBuilder]: Removed 14 assume(true) statements. [2023-12-19 01:40:51,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:40:51 BoogieIcfgContainer [2023-12-19 01:40:51,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 01:40:51,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 01:40:51,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 01:40:51,552 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 01:40:51,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 01:40:49" (1/3) ... [2023-12-19 01:40:51,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eed9529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:40:51, skipping insertion in model container [2023-12-19 01:40:51,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:40:50" (2/3) ... [2023-12-19 01:40:51,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eed9529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:40:51, skipping insertion in model container [2023-12-19 01:40:51,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:40:51" (3/3) ... [2023-12-19 01:40:51,554 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.07.cil-1.c [2023-12-19 01:40:51,566 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 01:40:51,566 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-19 01:40:51,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 01:40:51,606 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;@133e2191, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 01:40:51,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-19 01:40:51,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 337 states, 283 states have (on average 1.6925795053003534) internal successors, (479), 289 states have internal predecessors, (479), 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) [2023-12-19 01:40:51,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-19 01:40:51,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:40:51,624 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] [2023-12-19 01:40:51,624 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:40:51,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:40:51,629 INFO L85 PathProgramCache]: Analyzing trace with hash -919630782, now seen corresponding path program 1 times [2023-12-19 01:40:51,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:40:51,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985035532] [2023-12-19 01:40:51,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:40:51,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:40:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:51,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:40:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:51,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:40:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:51,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:40:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:51,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:40:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:40:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:51,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:40:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:51,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:40:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:51,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:40:51,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:40:51,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985035532] [2023-12-19 01:40:51,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985035532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:40:51,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:40:51,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 01:40:51,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837201130] [2023-12-19 01:40:51,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:40:51,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 01:40:51,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:40:51,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 01:40:51,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:40:51,947 INFO L87 Difference]: Start difference. First operand has 337 states, 283 states have (on average 1.6925795053003534) internal successors, (479), 289 states have internal predecessors, (479), 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 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 01:40:52,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:40:52,726 INFO L93 Difference]: Finished difference Result 672 states and 1099 transitions. [2023-12-19 01:40:52,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 01:40:52,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 57 [2023-12-19 01:40:52,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:40:52,740 INFO L225 Difference]: With dead ends: 672 [2023-12-19 01:40:52,740 INFO L226 Difference]: Without dead ends: 349 [2023-12-19 01:40:52,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:40:52,746 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 775 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:40:52,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 845 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 01:40:52,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-12-19 01:40:52,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 332. [2023-12-19 01:40:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 280 states have (on average 1.582142857142857) internal successors, (443), 284 states have internal predecessors, (443), 37 states have call successors, (37), 14 states have call predecessors, (37), 13 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-19 01:40:52,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 515 transitions. [2023-12-19 01:40:52,794 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 515 transitions. Word has length 57 [2023-12-19 01:40:52,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:40:52,795 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 515 transitions. [2023-12-19 01:40:52,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-19 01:40:52,795 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 515 transitions. [2023-12-19 01:40:52,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-19 01:40:52,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:40:52,797 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] [2023-12-19 01:40:52,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 01:40:52,797 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:40:52,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:40:52,798 INFO L85 PathProgramCache]: Analyzing trace with hash -904112064, now seen corresponding path program 1 times [2023-12-19 01:40:52,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:40:52,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821578297] [2023-12-19 01:40:52,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:40:52,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:40:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:52,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:40:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:52,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:40:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:52,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:40:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:52,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:40:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:52,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:40:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:52,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:40:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:52,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:40:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:52,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:40:52,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:40:52,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821578297] [2023-12-19 01:40:52,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821578297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:40:52,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:40:52,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 01:40:52,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436362319] [2023-12-19 01:40:52,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:40:52,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 01:40:52,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:40:52,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 01:40:52,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 01:40:52,951 INFO L87 Difference]: Start difference. First operand 332 states and 515 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 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) [2023-12-19 01:40:53,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:40:53,857 INFO L93 Difference]: Finished difference Result 564 states and 861 transitions. [2023-12-19 01:40:53,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:40:53,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 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 57 [2023-12-19 01:40:53,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:40:53,861 INFO L225 Difference]: With dead ends: 564 [2023-12-19 01:40:53,861 INFO L226 Difference]: Without dead ends: 470 [2023-12-19 01:40:53,862 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 [2023-12-19 01:40:53,863 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 927 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:40:53,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 1405 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 01:40:53,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-12-19 01:40:53,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 433. [2023-12-19 01:40:53,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 359 states have (on average 1.5543175487465182) internal successors, (558), 365 states have internal predecessors, (558), 50 states have call successors, (50), 21 states have call predecessors, (50), 22 states have return successors, (53), 49 states have call predecessors, (53), 48 states have call successors, (53) [2023-12-19 01:40:53,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 661 transitions. [2023-12-19 01:40:53,896 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 661 transitions. Word has length 57 [2023-12-19 01:40:53,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:40:53,896 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 661 transitions. [2023-12-19 01:40:53,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 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) [2023-12-19 01:40:53,896 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 661 transitions. [2023-12-19 01:40:53,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-19 01:40:53,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:40:53,898 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] [2023-12-19 01:40:53,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 01:40:53,899 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:40:53,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:40:53,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1024160638, now seen corresponding path program 1 times [2023-12-19 01:40:53,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:40:53,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690261257] [2023-12-19 01:40:53,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:40:53,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:40:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:53,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:40:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:54,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:40:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:54,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:40:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:54,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:40:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:54,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:40:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:54,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:40:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:54,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:40:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:40:54,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:40:54,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690261257] [2023-12-19 01:40:54,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690261257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:40:54,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:40:54,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 01:40:54,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169399337] [2023-12-19 01:40:54,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:40:54,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 01:40:54,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:40:54,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 01:40:54,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 01:40:54,077 INFO L87 Difference]: Start difference. First operand 433 states and 661 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 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) [2023-12-19 01:40:55,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:40:55,024 INFO L93 Difference]: Finished difference Result 794 states and 1190 transitions. [2023-12-19 01:40:55,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 01:40:55,025 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 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 57 [2023-12-19 01:40:55,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:40:55,028 INFO L225 Difference]: With dead ends: 794 [2023-12-19 01:40:55,028 INFO L226 Difference]: Without dead ends: 606 [2023-12-19 01:40:55,029 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 [2023-12-19 01:40:55,030 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1240 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 1645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:40:55,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 1375 Invalid, 1645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1488 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 01:40:55,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2023-12-19 01:40:55,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 534. [2023-12-19 01:40:55,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 438 states have (on average 1.5342465753424657) internal successors, (672), 446 states have internal predecessors, (672), 63 states have call successors, (63), 28 states have call predecessors, (63), 31 states have return successors, (74), 63 states have call predecessors, (74), 61 states have call successors, (74) [2023-12-19 01:40:55,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 809 transitions. [2023-12-19 01:40:55,060 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 809 transitions. Word has length 57 [2023-12-19 01:40:55,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:40:55,060 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 809 transitions. [2023-12-19 01:40:55,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 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) [2023-12-19 01:40:55,060 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 809 transitions. [2023-12-19 01:40:55,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-19 01:40:55,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:40:55,065 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] [2023-12-19 01:40:55,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 01:40:55,065 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:40:55,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:40:55,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1917646976, now seen corresponding path program 1 times [2023-12-19 01:40:55,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:40:55,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923863127] [2023-12-19 01:40:55,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:40:55,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:40:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:55,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:40:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:55,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:40:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:55,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:40:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:55,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:40:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:55,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 01:40:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:55,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 01:40:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:55,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 01:40:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:55,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:40:55,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:40:55,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923863127] [2023-12-19 01:40:55,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923863127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:40:55,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:40:55,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:40:55,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498004445] [2023-12-19 01:40:55,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:40:55,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:40:55,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:40:55,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:40:55,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:40:55,141 INFO L87 Difference]: Start difference. First operand 534 states and 809 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-19 01:40:55,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:40:55,871 INFO L93 Difference]: Finished difference Result 1140 states and 1685 transitions. [2023-12-19 01:40:55,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 01:40:55,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 57 [2023-12-19 01:40:55,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:40:55,876 INFO L225 Difference]: With dead ends: 1140 [2023-12-19 01:40:55,876 INFO L226 Difference]: Without dead ends: 857 [2023-12-19 01:40:55,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-12-19 01:40:55,878 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1100 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:40:55,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 1255 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 01:40:55,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2023-12-19 01:40:55,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 786. [2023-12-19 01:40:55,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 635 states have (on average 1.4960629921259843) internal successors, (950), 647 states have internal predecessors, (950), 93 states have call successors, (93), 49 states have call predecessors, (93), 56 states have return successors, (112), 93 states have call predecessors, (112), 91 states have call successors, (112) [2023-12-19 01:40:55,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1155 transitions. [2023-12-19 01:40:55,973 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1155 transitions. Word has length 57 [2023-12-19 01:40:55,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:40:55,974 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1155 transitions. [2023-12-19 01:40:55,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-19 01:40:55,974 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1155 transitions. [2023-12-19 01:40:55,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 01:40:55,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:40:55,975 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] [2023-12-19 01:40:55,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 01:40:55,975 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:40:55,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:40:55,976 INFO L85 PathProgramCache]: Analyzing trace with hash 659776351, now seen corresponding path program 1 times [2023-12-19 01:40:55,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:40:55,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612781169] [2023-12-19 01:40:55,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:40:55,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:40:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:56,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:40:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:56,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:40:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:56,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:40:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:56,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:40:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:56,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:40:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:56,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 01:40:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:56,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:40:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:56,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:40:56,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:40:56,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612781169] [2023-12-19 01:40:56,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612781169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:40:56,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:40:56,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 01:40:56,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982437885] [2023-12-19 01:40:56,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:40:56,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 01:40:56,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:40:56,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 01:40:56,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:40:56,094 INFO L87 Difference]: Start difference. First operand 786 states and 1155 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) [2023-12-19 01:40:56,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:40:56,934 INFO L93 Difference]: Finished difference Result 1433 states and 2091 transitions. [2023-12-19 01:40:56,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 01:40:56,935 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 [2023-12-19 01:40:56,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:40:56,939 INFO L225 Difference]: With dead ends: 1433 [2023-12-19 01:40:56,939 INFO L226 Difference]: Without dead ends: 898 [2023-12-19 01:40:56,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-19 01:40:56,945 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 436 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:40:56,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1821 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1677 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:40:56,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2023-12-19 01:40:57,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 810. [2023-12-19 01:40:57,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 653 states have (on average 1.4823889739663094) internal successors, (968), 665 states have internal predecessors, (968), 93 states have call successors, (93), 49 states have call predecessors, (93), 62 states have return successors, (118), 99 states have call predecessors, (118), 91 states have call successors, (118) [2023-12-19 01:40:57,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1179 transitions. [2023-12-19 01:40:57,012 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1179 transitions. Word has length 58 [2023-12-19 01:40:57,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:40:57,013 INFO L495 AbstractCegarLoop]: Abstraction has 810 states and 1179 transitions. [2023-12-19 01:40:57,014 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) [2023-12-19 01:40:57,014 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1179 transitions. [2023-12-19 01:40:57,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 01:40:57,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:40:57,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:40:57,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 01:40:57,018 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:40:57,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:40:57,018 INFO L85 PathProgramCache]: Analyzing trace with hash 519227741, now seen corresponding path program 1 times [2023-12-19 01:40:57,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:40:57,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5592476] [2023-12-19 01:40:57,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:40:57,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:40:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:57,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:40:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:57,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:40:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:57,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:40:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:57,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:40:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:57,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:40:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:57,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 01:40:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:40:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:40:57,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:40:57,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5592476] [2023-12-19 01:40:57,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5592476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:40:57,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:40:57,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 01:40:57,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881874554] [2023-12-19 01:40:57,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:40:57,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 01:40:57,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:40:57,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 01:40:57,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:40:57,183 INFO L87 Difference]: Start difference. First operand 810 states and 1179 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) [2023-12-19 01:40:58,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:40:58,024 INFO L93 Difference]: Finished difference Result 1448 states and 2082 transitions. [2023-12-19 01:40:58,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 01:40:58,024 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 [2023-12-19 01:40:58,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:40:58,031 INFO L225 Difference]: With dead ends: 1448 [2023-12-19 01:40:58,031 INFO L226 Difference]: Without dead ends: 889 [2023-12-19 01:40:58,033 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 [2023-12-19 01:40:58,053 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 443 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:40:58,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 1823 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:40:58,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2023-12-19 01:40:58,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 822. [2023-12-19 01:40:58,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 662 states have (on average 1.4712990936555892) internal successors, (974), 674 states have internal predecessors, (974), 93 states have call successors, (93), 49 states have call predecessors, (93), 65 states have return successors, (121), 102 states have call predecessors, (121), 91 states have call successors, (121) [2023-12-19 01:40:58,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1188 transitions. [2023-12-19 01:40:58,160 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1188 transitions. Word has length 58 [2023-12-19 01:40:58,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:40:58,161 INFO L495 AbstractCegarLoop]: Abstraction has 822 states and 1188 transitions. [2023-12-19 01:40:58,161 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) [2023-12-19 01:40:58,161 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1188 transitions. [2023-12-19 01:40:58,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-19 01:40:58,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:40:58,163 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] [2023-12-19 01:40:58,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 01:40:58,163 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:40:58,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:40:58,166 INFO L85 PathProgramCache]: Analyzing trace with hash 446841183, now seen corresponding path program 1 times [2023-12-19 01:40:58,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:40:58,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261378498] [2023-12-19 01:40:58,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:40:58,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:40:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:58,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:40:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:58,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:40:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:40:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:58,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:40:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:58,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:40:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:58,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 01:40:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:58,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 01:40:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:40:58,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:40:58,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:40:58,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261378498] [2023-12-19 01:40:58,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261378498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:40:58,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:40:58,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 01:40:58,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370456362] [2023-12-19 01:40:58,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:40:58,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 01:40:58,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:40:58,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 01:40:58,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:40:58,325 INFO L87 Difference]: Start difference. First operand 822 states and 1188 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-19 01:41:00,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:00,104 INFO L93 Difference]: Finished difference Result 2927 states and 4250 transitions. [2023-12-19 01:41:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-19 01:41:00,104 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 58 [2023-12-19 01:41:00,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:00,109 INFO L225 Difference]: With dead ends: 2927 [2023-12-19 01:41:00,109 INFO L226 Difference]: Without dead ends: 1175 [2023-12-19 01:41:00,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2023-12-19 01:41:00,114 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 1820 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:00,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 1924 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-19 01:41:00,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2023-12-19 01:41:00,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1037. [2023-12-19 01:41:00,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 818 states have (on average 1.4205378973105134) internal successors, (1162), 834 states have internal predecessors, (1162), 123 states have call successors, (123), 70 states have call predecessors, (123), 94 states have return successors, (173), 136 states have call predecessors, (173), 121 states have call successors, (173) [2023-12-19 01:41:00,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1458 transitions. [2023-12-19 01:41:00,156 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1458 transitions. Word has length 58 [2023-12-19 01:41:00,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:00,157 INFO L495 AbstractCegarLoop]: Abstraction has 1037 states and 1458 transitions. [2023-12-19 01:41:00,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-19 01:41:00,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1458 transitions. [2023-12-19 01:41:00,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-19 01:41:00,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:00,173 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] [2023-12-19 01:41:00,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 01:41:00,174 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:00,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:00,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1077960567, now seen corresponding path program 1 times [2023-12-19 01:41:00,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:00,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965157954] [2023-12-19 01:41:00,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:00,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:00,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:00,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:41:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:00,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:00,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 01:41:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:00,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 01:41:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:00,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 01:41:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:00,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 01:41:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:00,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:00,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:00,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965157954] [2023-12-19 01:41:00,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965157954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:00,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:00,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 01:41:00,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15345575] [2023-12-19 01:41:00,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:00,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 01:41:00,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:00,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 01:41:00,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-19 01:41:00,315 INFO L87 Difference]: Start difference. First operand 1037 states and 1458 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-19 01:41:01,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:01,237 INFO L93 Difference]: Finished difference Result 2129 states and 3007 transitions. [2023-12-19 01:41:01,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 01:41:01,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 59 [2023-12-19 01:41:01,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:01,239 INFO L225 Difference]: With dead ends: 2129 [2023-12-19 01:41:01,239 INFO L226 Difference]: Without dead ends: 232 [2023-12-19 01:41:01,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-12-19 01:41:01,244 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1332 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:01,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 1310 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:41:01,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-12-19 01:41:01,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2023-12-19 01:41:01,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 204 states have (on average 1.607843137254902) internal successors, (328), 205 states have internal predecessors, (328), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-19 01:41:01,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 370 transitions. [2023-12-19 01:41:01,253 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 370 transitions. Word has length 59 [2023-12-19 01:41:01,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:01,253 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 370 transitions. [2023-12-19 01:41:01,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-19 01:41:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 370 transitions. [2023-12-19 01:41:01,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:41:01,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:01,254 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] [2023-12-19 01:41:01,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 01:41:01,254 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:01,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:01,255 INFO L85 PathProgramCache]: Analyzing trace with hash -2042337974, now seen corresponding path program 1 times [2023-12-19 01:41:01,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:01,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652631326] [2023-12-19 01:41:01,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:01,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:01,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:01,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:01,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:41:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:01,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:41:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:01,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:41:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:01,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:01,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:01,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652631326] [2023-12-19 01:41:01,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652631326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:01,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:01,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 01:41:01,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781656888] [2023-12-19 01:41:01,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:01,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 01:41:01,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:01,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 01:41:01,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 01:41:01,352 INFO L87 Difference]: Start difference. First operand 232 states and 370 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 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) [2023-12-19 01:41:02,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:02,223 INFO L93 Difference]: Finished difference Result 539 states and 876 transitions. [2023-12-19 01:41:02,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 01:41:02,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 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 111 [2023-12-19 01:41:02,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:02,226 INFO L225 Difference]: With dead ends: 539 [2023-12-19 01:41:02,226 INFO L226 Difference]: Without dead ends: 312 [2023-12-19 01:41:02,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 01:41:02,227 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 622 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:02,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 417 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 01:41:02,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-12-19 01:41:02,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 232. [2023-12-19 01:41:02,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 204 states have (on average 1.6029411764705883) internal successors, (327), 205 states have internal predecessors, (327), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-19 01:41:02,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 369 transitions. [2023-12-19 01:41:02,238 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 369 transitions. Word has length 111 [2023-12-19 01:41:02,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:02,238 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 369 transitions. [2023-12-19 01:41:02,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 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) [2023-12-19 01:41:02,238 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 369 transitions. [2023-12-19 01:41:02,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:41:02,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:02,239 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] [2023-12-19 01:41:02,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 01:41:02,240 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:02,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:02,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2134187848, now seen corresponding path program 1 times [2023-12-19 01:41:02,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:02,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610263581] [2023-12-19 01:41:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:02,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:02,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:02,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:02,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:41:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:02,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:41:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:02,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:41:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:02,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:02,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:02,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610263581] [2023-12-19 01:41:02,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610263581] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:02,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:02,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 01:41:02,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078082867] [2023-12-19 01:41:02,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:02,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 01:41:02,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:02,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 01:41:02,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 01:41:02,373 INFO L87 Difference]: Start difference. First operand 232 states and 369 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 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) [2023-12-19 01:41:03,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:03,751 INFO L93 Difference]: Finished difference Result 837 states and 1365 transitions. [2023-12-19 01:41:03,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 01:41:03,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 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 111 [2023-12-19 01:41:03,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:03,756 INFO L225 Difference]: With dead ends: 837 [2023-12-19 01:41:03,756 INFO L226 Difference]: Without dead ends: 619 [2023-12-19 01:41:03,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-19 01:41:03,757 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 932 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:03,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 701 Invalid, 1541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 01:41:03,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2023-12-19 01:41:03,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 460. [2023-12-19 01:41:03,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 409 states have (on average 1.6136919315403424) internal successors, (660), 411 states have internal predecessors, (660), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2023-12-19 01:41:03,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 737 transitions. [2023-12-19 01:41:03,775 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 737 transitions. Word has length 111 [2023-12-19 01:41:03,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:03,776 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 737 transitions. [2023-12-19 01:41:03,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 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) [2023-12-19 01:41:03,776 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 737 transitions. [2023-12-19 01:41:03,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:41:03,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:03,776 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] [2023-12-19 01:41:03,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 01:41:03,777 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:03,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:03,777 INFO L85 PathProgramCache]: Analyzing trace with hash -881780788, now seen corresponding path program 1 times [2023-12-19 01:41:03,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:03,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171141596] [2023-12-19 01:41:03,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:03,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:03,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:03,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:03,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:41:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:03,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:41:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:03,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:41:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:03,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:03,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:03,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171141596] [2023-12-19 01:41:03,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171141596] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:03,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:03,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:41:03,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177872198] [2023-12-19 01:41:03,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:03,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:41:03,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:03,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:41:03,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:41:03,906 INFO L87 Difference]: Start difference. First operand 460 states and 737 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:05,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:05,803 INFO L93 Difference]: Finished difference Result 1382 states and 2251 transitions. [2023-12-19 01:41:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:41:05,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2023-12-19 01:41:05,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:05,808 INFO L225 Difference]: With dead ends: 1382 [2023-12-19 01:41:05,808 INFO L226 Difference]: Without dead ends: 936 [2023-12-19 01:41:05,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:41:05,809 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 947 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:05,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 1321 Invalid, 2424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-19 01:41:05,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2023-12-19 01:41:05,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 671. [2023-12-19 01:41:05,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 597 states have (on average 1.6063651591289783) internal successors, (959), 600 states have internal predecessors, (959), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2023-12-19 01:41:05,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1070 transitions. [2023-12-19 01:41:05,835 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1070 transitions. Word has length 111 [2023-12-19 01:41:05,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:05,835 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 1070 transitions. [2023-12-19 01:41:05,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:05,836 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1070 transitions. [2023-12-19 01:41:05,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:41:05,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:05,837 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] [2023-12-19 01:41:05,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 01:41:05,837 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:05,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:05,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1794211594, now seen corresponding path program 1 times [2023-12-19 01:41:05,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:05,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094436585] [2023-12-19 01:41:05,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:05,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:05,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:05,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:06,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:41:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:06,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:41:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:06,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:41:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:06,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:06,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:06,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094436585] [2023-12-19 01:41:06,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094436585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:06,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:06,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:41:06,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714150564] [2023-12-19 01:41:06,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:06,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:41:06,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:06,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:41:06,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:41:06,020 INFO L87 Difference]: Start difference. First operand 671 states and 1070 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:08,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:08,022 INFO L93 Difference]: Finished difference Result 2180 states and 3542 transitions. [2023-12-19 01:41:08,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:41:08,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2023-12-19 01:41:08,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:08,029 INFO L225 Difference]: With dead ends: 2180 [2023-12-19 01:41:08,029 INFO L226 Difference]: Without dead ends: 1523 [2023-12-19 01:41:08,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:41:08,033 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 945 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 2369 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:08,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 1319 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2369 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-19 01:41:08,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2023-12-19 01:41:08,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1094. [2023-12-19 01:41:08,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 974 states have (on average 1.5995893223819302) internal successors, (1558), 979 states have internal predecessors, (1558), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-19 01:41:08,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1741 transitions. [2023-12-19 01:41:08,077 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1741 transitions. Word has length 111 [2023-12-19 01:41:08,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:08,078 INFO L495 AbstractCegarLoop]: Abstraction has 1094 states and 1741 transitions. [2023-12-19 01:41:08,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:08,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1741 transitions. [2023-12-19 01:41:08,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:41:08,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:08,079 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] [2023-12-19 01:41:08,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 01:41:08,079 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:08,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:08,079 INFO L85 PathProgramCache]: Analyzing trace with hash 910702604, now seen corresponding path program 1 times [2023-12-19 01:41:08,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:08,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540790266] [2023-12-19 01:41:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:08,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:08,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:41:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:41:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:08,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:41:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:08,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:08,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:08,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540790266] [2023-12-19 01:41:08,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540790266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:08,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:08,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:41:08,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228288825] [2023-12-19 01:41:08,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:08,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:41:08,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:08,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:41:08,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:41:08,254 INFO L87 Difference]: Start difference. First operand 1094 states and 1741 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:10,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:10,556 INFO L93 Difference]: Finished difference Result 3711 states and 6009 transitions. [2023-12-19 01:41:10,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:41:10,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2023-12-19 01:41:10,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:10,566 INFO L225 Difference]: With dead ends: 3711 [2023-12-19 01:41:10,567 INFO L226 Difference]: Without dead ends: 2631 [2023-12-19 01:41:10,570 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 [2023-12-19 01:41:10,571 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 947 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 2408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:10,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 1319 Invalid, 2408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2355 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-19 01:41:10,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2023-12-19 01:41:10,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 1941. [2023-12-19 01:41:10,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1941 states, 1729 states have (on average 1.593984962406015) internal successors, (2756), 1738 states have internal predecessors, (2756), 149 states have call successors, (149), 54 states have call predecessors, (149), 62 states have return successors, (184), 156 states have call predecessors, (184), 149 states have call successors, (184) [2023-12-19 01:41:10,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 3089 transitions. [2023-12-19 01:41:10,694 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 3089 transitions. Word has length 111 [2023-12-19 01:41:10,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:10,694 INFO L495 AbstractCegarLoop]: Abstraction has 1941 states and 3089 transitions. [2023-12-19 01:41:10,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:10,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 3089 transitions. [2023-12-19 01:41:10,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:41:10,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:10,696 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] [2023-12-19 01:41:10,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 01:41:10,696 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:10,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:10,696 INFO L85 PathProgramCache]: Analyzing trace with hash 882202314, now seen corresponding path program 1 times [2023-12-19 01:41:10,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:10,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796814216] [2023-12-19 01:41:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:10,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:10,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:10,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:10,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:41:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:10,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:41:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:10,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:41:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:10,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:10,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796814216] [2023-12-19 01:41:10,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796814216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:10,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:10,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:41:10,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014376060] [2023-12-19 01:41:10,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:10,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:41:10,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:10,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:41:10,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:41:10,825 INFO L87 Difference]: Start difference. First operand 1941 states and 3089 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:12,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:12,863 INFO L93 Difference]: Finished difference Result 6765 states and 10947 transitions. [2023-12-19 01:41:12,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:41:12,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2023-12-19 01:41:12,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:12,883 INFO L225 Difference]: With dead ends: 6765 [2023-12-19 01:41:12,883 INFO L226 Difference]: Without dead ends: 4838 [2023-12-19 01:41:12,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:41:12,890 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 943 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 2380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:12,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 1319 Invalid, 2380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2327 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-19 01:41:12,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2023-12-19 01:41:13,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 3649. [2023-12-19 01:41:13,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3649 states, 3253 states have (on average 1.5911466338764217) internal successors, (5176), 3270 states have internal predecessors, (5176), 277 states have call successors, (277), 102 states have call predecessors, (277), 118 states have return successors, (374), 292 states have call predecessors, (374), 277 states have call successors, (374) [2023-12-19 01:41:13,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3649 states to 3649 states and 5827 transitions. [2023-12-19 01:41:13,071 INFO L78 Accepts]: Start accepts. Automaton has 3649 states and 5827 transitions. Word has length 111 [2023-12-19 01:41:13,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:13,071 INFO L495 AbstractCegarLoop]: Abstraction has 3649 states and 5827 transitions. [2023-12-19 01:41:13,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:13,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3649 states and 5827 transitions. [2023-12-19 01:41:13,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:41:13,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:13,076 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] [2023-12-19 01:41:13,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 01:41:13,077 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:13,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:13,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1535701752, now seen corresponding path program 1 times [2023-12-19 01:41:13,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:13,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183623980] [2023-12-19 01:41:13,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:13,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:13,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:13,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:13,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:41:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:13,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:41:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:13,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:41:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:13,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:13,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:13,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183623980] [2023-12-19 01:41:13,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183623980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:13,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:13,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:41:13,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797683306] [2023-12-19 01:41:13,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:13,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:41:13,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:13,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:41:13,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:41:13,248 INFO L87 Difference]: Start difference. First operand 3649 states and 5827 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:15,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:15,283 INFO L93 Difference]: Finished difference Result 12891 states and 20915 transitions. [2023-12-19 01:41:15,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:41:15,283 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2023-12-19 01:41:15,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:15,317 INFO L225 Difference]: With dead ends: 12891 [2023-12-19 01:41:15,317 INFO L226 Difference]: Without dead ends: 9256 [2023-12-19 01:41:15,331 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 [2023-12-19 01:41:15,332 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1010 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 2006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:15,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 870 Invalid, 2006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-19 01:41:15,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9256 states. [2023-12-19 01:41:15,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9256 to 7078. [2023-12-19 01:41:15,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7078 states, 6314 states have (on average 1.5891669306303453) internal successors, (10034), 6347 states have internal predecessors, (10034), 533 states have call successors, (533), 198 states have call predecessors, (533), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2023-12-19 01:41:15,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7078 states to 7078 states and 11375 transitions. [2023-12-19 01:41:15,730 INFO L78 Accepts]: Start accepts. Automaton has 7078 states and 11375 transitions. Word has length 111 [2023-12-19 01:41:15,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:15,730 INFO L495 AbstractCegarLoop]: Abstraction has 7078 states and 11375 transitions. [2023-12-19 01:41:15,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:15,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7078 states and 11375 transitions. [2023-12-19 01:41:15,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:41:15,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:15,737 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] [2023-12-19 01:41:15,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 01:41:15,737 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:15,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:15,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1988531978, now seen corresponding path program 1 times [2023-12-19 01:41:15,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:15,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640264986] [2023-12-19 01:41:15,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:15,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:15,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:15,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:41:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:15,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:41:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:15,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:41:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:15,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:15,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640264986] [2023-12-19 01:41:15,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640264986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:15,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:15,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:41:15,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709019941] [2023-12-19 01:41:15,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:15,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:41:15,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:15,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:41:15,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:41:15,952 INFO L87 Difference]: Start difference. First operand 7078 states and 11375 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:18,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:18,256 INFO L93 Difference]: Finished difference Result 25142 states and 41041 transitions. [2023-12-19 01:41:18,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 01:41:18,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2023-12-19 01:41:18,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:18,329 INFO L225 Difference]: With dead ends: 25142 [2023-12-19 01:41:18,329 INFO L226 Difference]: Without dead ends: 18078 [2023-12-19 01:41:18,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-19 01:41:18,357 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 941 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:18,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 1319 Invalid, 2354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 01:41:18,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18078 states. [2023-12-19 01:41:19,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18078 to 13967. [2023-12-19 01:41:19,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13967 states, 12467 states have (on average 1.587871982032566) internal successors, (19796), 12532 states have internal predecessors, (19796), 1045 states have call successors, (1045), 390 states have call predecessors, (1045), 454 states have return successors, (1838), 1108 states have call predecessors, (1838), 1045 states have call successors, (1838) [2023-12-19 01:41:19,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13967 states to 13967 states and 22679 transitions. [2023-12-19 01:41:19,331 INFO L78 Accepts]: Start accepts. Automaton has 13967 states and 22679 transitions. Word has length 111 [2023-12-19 01:41:19,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:19,331 INFO L495 AbstractCegarLoop]: Abstraction has 13967 states and 22679 transitions. [2023-12-19 01:41:19,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:19,331 INFO L276 IsEmpty]: Start isEmpty. Operand 13967 states and 22679 transitions. [2023-12-19 01:41:19,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:41:19,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:19,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 01:41:19,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 01:41:19,357 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:19,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:19,358 INFO L85 PathProgramCache]: Analyzing trace with hash 993838280, now seen corresponding path program 1 times [2023-12-19 01:41:19,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:19,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740773724] [2023-12-19 01:41:19,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:19,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:19,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:19,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:19,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:41:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:19,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:41:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:19,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:41:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:19,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:19,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740773724] [2023-12-19 01:41:19,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740773724] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:19,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:19,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:41:19,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687715061] [2023-12-19 01:41:19,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:19,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:41:19,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:19,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:41:19,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:41:19,521 INFO L87 Difference]: Start difference. First operand 13967 states and 22679 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:22,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:22,620 INFO L93 Difference]: Finished difference Result 55533 states and 91305 transitions. [2023-12-19 01:41:22,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 01:41:22,621 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2023-12-19 01:41:22,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:22,798 INFO L225 Difference]: With dead ends: 55533 [2023-12-19 01:41:22,798 INFO L226 Difference]: Without dead ends: 41580 [2023-12-19 01:41:22,855 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 [2023-12-19 01:41:22,855 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1005 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 2712 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 2767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:22,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 1312 Invalid, 2767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2712 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-19 01:41:22,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41580 states. [2023-12-19 01:41:24,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41580 to 27680. [2023-12-19 01:41:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27680 states, 24772 states have (on average 1.5884870014532537) internal successors, (39350), 24901 states have internal predecessors, (39350), 2005 states have call successors, (2005), 774 states have call predecessors, (2005), 902 states have return successors, (4320), 2132 states have call predecessors, (4320), 2005 states have call successors, (4320) [2023-12-19 01:41:25,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27680 states to 27680 states and 45675 transitions. [2023-12-19 01:41:25,093 INFO L78 Accepts]: Start accepts. Automaton has 27680 states and 45675 transitions. Word has length 111 [2023-12-19 01:41:25,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:25,094 INFO L495 AbstractCegarLoop]: Abstraction has 27680 states and 45675 transitions. [2023-12-19 01:41:25,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:25,094 INFO L276 IsEmpty]: Start isEmpty. Operand 27680 states and 45675 transitions. [2023-12-19 01:41:25,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:41:25,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:25,112 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] [2023-12-19 01:41:25,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 01:41:25,113 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:25,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:25,113 INFO L85 PathProgramCache]: Analyzing trace with hash 407562058, now seen corresponding path program 1 times [2023-12-19 01:41:25,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:25,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855953187] [2023-12-19 01:41:25,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:25,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:25,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:25,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:41:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:25,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:41:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:25,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:41:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:25,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:25,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:25,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855953187] [2023-12-19 01:41:25,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855953187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:25,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:25,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:41:25,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924682932] [2023-12-19 01:41:25,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:25,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:41:25,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:25,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:41:25,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:41:25,260 INFO L87 Difference]: Start difference. First operand 27680 states and 45675 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:29,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:29,477 INFO L93 Difference]: Finished difference Result 108636 states and 181391 transitions. [2023-12-19 01:41:29,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 01:41:29,477 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2023-12-19 01:41:29,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:30,013 INFO L225 Difference]: With dead ends: 108636 [2023-12-19 01:41:30,013 INFO L226 Difference]: Without dead ends: 80970 [2023-12-19 01:41:30,082 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 [2023-12-19 01:41:30,083 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1162 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:30,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 1308 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-19 01:41:30,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80970 states. [2023-12-19 01:41:33,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80970 to 54465. [2023-12-19 01:41:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54465 states, 48805 states have (on average 1.589181436328245) internal successors, (77560), 49062 states have internal predecessors, (77560), 3861 states have call successors, (3861), 1542 states have call predecessors, (3861), 1798 states have return successors, (10678), 4116 states have call predecessors, (10678), 3861 states have call successors, (10678) [2023-12-19 01:41:33,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54465 states to 54465 states and 92099 transitions. [2023-12-19 01:41:33,698 INFO L78 Accepts]: Start accepts. Automaton has 54465 states and 92099 transitions. Word has length 111 [2023-12-19 01:41:33,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:33,699 INFO L495 AbstractCegarLoop]: Abstraction has 54465 states and 92099 transitions. [2023-12-19 01:41:33,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:33,699 INFO L276 IsEmpty]: Start isEmpty. Operand 54465 states and 92099 transitions. [2023-12-19 01:41:33,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:41:33,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:33,743 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] [2023-12-19 01:41:33,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 01:41:33,744 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:33,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:33,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1551012728, now seen corresponding path program 1 times [2023-12-19 01:41:33,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:33,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124949834] [2023-12-19 01:41:33,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:33,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:33,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:33,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:33,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:41:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:33,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:41:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:33,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:41:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:33,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:33,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:33,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124949834] [2023-12-19 01:41:33,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124949834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:33,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:33,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:41:33,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114631023] [2023-12-19 01:41:33,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:33,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:41:33,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:33,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:41:33,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:41:33,881 INFO L87 Difference]: Start difference. First operand 54465 states and 92099 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:40,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:40,217 INFO L93 Difference]: Finished difference Result 211131 states and 360997 transitions. [2023-12-19 01:41:40,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 01:41:40,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2023-12-19 01:41:40,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:41:41,030 INFO L225 Difference]: With dead ends: 211131 [2023-12-19 01:41:41,030 INFO L226 Difference]: Without dead ends: 156680 [2023-12-19 01:41:41,277 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 [2023-12-19 01:41:41,277 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 985 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 2603 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-19 01:41:41,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 1312 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2603 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-19 01:41:41,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156680 states. [2023-12-19 01:41:46,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156680 to 108674. [2023-12-19 01:41:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108674 states, 97638 states have (on average 1.5901390851922408) internal successors, (155258), 98151 states have internal predecessors, (155258), 7445 states have call successors, (7445), 3078 states have call predecessors, (7445), 3590 states have return successors, (27640), 7956 states have call predecessors, (27640), 7445 states have call successors, (27640) [2023-12-19 01:41:47,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108674 states to 108674 states and 190343 transitions. [2023-12-19 01:41:47,975 INFO L78 Accepts]: Start accepts. Automaton has 108674 states and 190343 transitions. Word has length 111 [2023-12-19 01:41:47,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:41:47,976 INFO L495 AbstractCegarLoop]: Abstraction has 108674 states and 190343 transitions. [2023-12-19 01:41:47,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:47,977 INFO L276 IsEmpty]: Start isEmpty. Operand 108674 states and 190343 transitions. [2023-12-19 01:41:48,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:41:48,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:41:48,064 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] [2023-12-19 01:41:48,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 01:41:48,064 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:41:48,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:41:48,064 INFO L85 PathProgramCache]: Analyzing trace with hash 325470090, now seen corresponding path program 1 times [2023-12-19 01:41:48,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:41:48,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972614551] [2023-12-19 01:41:48,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:41:48,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:41:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:48,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:41:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:48,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:41:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:48,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:41:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:48,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:41:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:48,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:41:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:41:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:41:48,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:41:48,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972614551] [2023-12-19 01:41:48,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972614551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:41:48,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:41:48,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:41:48,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31542750] [2023-12-19 01:41:48,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:41:48,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:41:48,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:41:48,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:41:48,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:41:48,183 INFO L87 Difference]: Start difference. First operand 108674 states and 190343 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:41:59,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:41:59,082 INFO L93 Difference]: Finished difference Result 413946 states and 733867 transitions. [2023-12-19 01:41:59,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 01:41:59,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2023-12-19 01:41:59,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:42:00,743 INFO L225 Difference]: With dead ends: 413946 [2023-12-19 01:42:00,744 INFO L226 Difference]: Without dead ends: 305286 [2023-12-19 01:42:01,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 01:42:01,190 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1097 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-19 01:42:01,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 1312 Invalid, 2290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-19 01:42:01,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305286 states. [2023-12-19 01:42:12,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305286 to 217091. [2023-12-19 01:42:13,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217091 states, 195559 states have (on average 1.5911515194902817) internal successors, (311164), 196584 states have internal predecessors, (311164), 14357 states have call successors, (14357), 6150 states have call predecessors, (14357), 7174 states have return successors, (74430), 15380 states have call predecessors, (74430), 14357 states have call successors, (74430) [2023-12-19 01:42:14,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217091 states to 217091 states and 399951 transitions. [2023-12-19 01:42:14,896 INFO L78 Accepts]: Start accepts. Automaton has 217091 states and 399951 transitions. Word has length 111 [2023-12-19 01:42:14,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 01:42:14,896 INFO L495 AbstractCegarLoop]: Abstraction has 217091 states and 399951 transitions. [2023-12-19 01:42:14,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:42:14,897 INFO L276 IsEmpty]: Start isEmpty. Operand 217091 states and 399951 transitions. [2023-12-19 01:42:15,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 01:42:15,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 01:42:15,033 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] [2023-12-19 01:42:15,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 01:42:15,034 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 01:42:15,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 01:42:15,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1553660856, now seen corresponding path program 1 times [2023-12-19 01:42:15,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 01:42:15,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40593919] [2023-12-19 01:42:15,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 01:42:15,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 01:42:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:42:15,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 01:42:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:42:15,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 01:42:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:42:15,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 01:42:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:42:15,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 01:42:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:42:15,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 01:42:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 01:42:15,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 01:42:15,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 01:42:15,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40593919] [2023-12-19 01:42:15,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40593919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 01:42:15,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 01:42:15,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 01:42:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138582267] [2023-12-19 01:42:15,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 01:42:15,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 01:42:15,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 01:42:15,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 01:42:15,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 01:42:15,160 INFO L87 Difference]: Start difference. First operand 217091 states and 399951 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-19 01:42:36,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 01:42:36,427 INFO L93 Difference]: Finished difference Result 798583 states and 1498301 transitions. [2023-12-19 01:42:36,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 01:42:36,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 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 111 [2023-12-19 01:42:36,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 01:42:40,213 INFO L225 Difference]: With dead ends: 798583 [2023-12-19 01:42:40,213 INFO L226 Difference]: Without dead ends: 581506 [2023-12-19 01:42:41,261 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 [2023-12-19 01:42:41,262 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 958 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-19 01:42:41,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1312 Invalid, 2475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2420 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-19 01:42:41,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581506 states.