/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:08:43,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:08:43,557 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 01:08:43,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:08:43,561 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:08:43,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:08:43,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:08:43,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:08:43,576 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:08:43,576 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:08:43,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:08:43,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:08:43,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:08:43,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:08:43,578 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:08:43,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:08:43,578 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:08:43,578 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:08:43,578 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:08:43,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:08:43,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:08:43,579 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:08:43,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:08:43,580 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:08:43,580 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:08:43,580 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:08:43,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:08:43,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:08:43,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:08:43,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:08:43,581 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:08:43,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:08:43,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:08:43,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:08:43,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:08:43,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:08:43,583 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:08:43,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:08:43,583 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:08:43,583 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:08:43,583 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:08:43,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:08:43,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:08:43,584 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:08:43,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:08:43,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:08:43,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:08:43,771 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:08:43,772 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:08:43,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-1.c [2023-12-16 01:08:45,157 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:08:45,486 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:08:45,486 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-1.c [2023-12-16 01:08:45,522 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f7558c5/efeba60a92534a2780876ce9eca10cbb/FLAGce2418fad [2023-12-16 01:08:45,535 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f7558c5/efeba60a92534a2780876ce9eca10cbb [2023-12-16 01:08:45,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:08:45,551 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:08:45,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:08:45,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:08:45,569 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:08:45,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:08:45" (1/1) ... [2023-12-16 01:08:45,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ecfdba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:45, skipping insertion in model container [2023-12-16 01:08:45,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:08:45" (1/1) ... [2023-12-16 01:08:45,654 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:08:45,882 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-1.c[914,927] [2023-12-16 01:08:45,920 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-1.c[7115,7128] [2023-12-16 01:08:45,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:08:45,975 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:08:45,983 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-1.c[914,927] [2023-12-16 01:08:45,997 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-1.c[7115,7128] [2023-12-16 01:08:46,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:08:46,040 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:08:46,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46 WrapperNode [2023-12-16 01:08:46,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:08:46,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:08:46,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:08:46,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:08:46,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (1/1) ... [2023-12-16 01:08:46,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (1/1) ... [2023-12-16 01:08:46,084 INFO L138 Inliner]: procedures = 67, calls = 78, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 768 [2023-12-16 01:08:46,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:08:46,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:08:46,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:08:46,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:08:46,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (1/1) ... [2023-12-16 01:08:46,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (1/1) ... [2023-12-16 01:08:46,106 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (1/1) ... [2023-12-16 01:08:46,146 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 01:08:46,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (1/1) ... [2023-12-16 01:08:46,146 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (1/1) ... [2023-12-16 01:08:46,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (1/1) ... [2023-12-16 01:08:46,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (1/1) ... [2023-12-16 01:08:46,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (1/1) ... [2023-12-16 01:08:46,201 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (1/1) ... [2023-12-16 01:08:46,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:08:46,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:08:46,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:08:46,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:08:46,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (1/1) ... [2023-12-16 01:08:46,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:08:46,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:08:46,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 01:08:46,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 01:08:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:08:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 01:08:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 01:08:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 01:08:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 01:08:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 01:08:46,367 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 01:08:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 01:08:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 01:08:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 01:08:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 01:08:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 01:08:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 01:08:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 01:08:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 01:08:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 01:08:46,368 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 01:08:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 01:08:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 01:08:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 01:08:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 01:08:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 01:08:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 01:08:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:08:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 01:08:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 01:08:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 01:08:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 01:08:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:08:46,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:08:46,370 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 01:08:46,370 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 01:08:46,489 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:08:46,490 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:08:47,027 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:08:47,058 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:08:47,058 INFO L309 CfgBuilder]: Removed 14 assume(true) statements. [2023-12-16 01:08:47,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:08:47 BoogieIcfgContainer [2023-12-16 01:08:47,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:08:47,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:08:47,060 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:08:47,062 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:08:47,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:08:45" (1/3) ... [2023-12-16 01:08:47,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609b79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:08:47, skipping insertion in model container [2023-12-16 01:08:47,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:46" (2/3) ... [2023-12-16 01:08:47,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609b79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:08:47, skipping insertion in model container [2023-12-16 01:08:47,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:08:47" (3/3) ... [2023-12-16 01:08:47,064 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.07.cil-1.c [2023-12-16 01:08:47,076 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:08:47,076 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 01:08:47,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:08:47,122 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;@46c5f3cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:08:47,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 01:08:47,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 324 states, 272 states have (on average 1.6911764705882353) internal successors, (460), 278 states have internal predecessors, (460), 35 states have call successors, (35), 14 states have call predecessors, (35), 14 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 01:08:47,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:47,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:47,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:47,134 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:47,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:47,138 INFO L85 PathProgramCache]: Analyzing trace with hash 266199912, now seen corresponding path program 1 times [2023-12-16 01:08:47,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:47,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804101415] [2023-12-16 01:08:47,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:47,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:47,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:47,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804101415] [2023-12-16 01:08:47,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804101415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:47,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:47,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:08:47,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234024332] [2023-12-16 01:08:47,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:47,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:08:47,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:47,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:08:47,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:08:47,483 INFO L87 Difference]: Start difference. First operand has 324 states, 272 states have (on average 1.6911764705882353) internal successors, (460), 278 states have internal predecessors, (460), 35 states have call successors, (35), 14 states have call predecessors, (35), 14 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-16 01:08:48,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:48,100 INFO L93 Difference]: Finished difference Result 647 states and 1054 transitions. [2023-12-16 01:08:48,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 01:08:48,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 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 58 [2023-12-16 01:08:48,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:48,110 INFO L225 Difference]: With dead ends: 647 [2023-12-16 01:08:48,110 INFO L226 Difference]: Without dead ends: 336 [2023-12-16 01:08:48,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:08:48,116 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 715 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:48,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 813 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:08:48,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-16 01:08:48,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 319. [2023-12-16 01:08:48,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 269 states have (on average 1.5762081784386617) internal successors, (424), 273 states have internal predecessors, (424), 35 states have call successors, (35), 14 states have call predecessors, (35), 13 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 01:08:48,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 492 transitions. [2023-12-16 01:08:48,161 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 492 transitions. Word has length 58 [2023-12-16 01:08:48,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:48,161 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 492 transitions. [2023-12-16 01:08:48,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-16 01:08:48,162 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 492 transitions. [2023-12-16 01:08:48,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:48,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:48,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:48,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:08:48,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:48,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:48,189 INFO L85 PathProgramCache]: Analyzing trace with hash -2000181274, now seen corresponding path program 1 times [2023-12-16 01:08:48,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:48,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093988425] [2023-12-16 01:08:48,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:48,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:48,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:48,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093988425] [2023-12-16 01:08:48,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093988425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:48,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:48,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:08:48,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742798231] [2023-12-16 01:08:48,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:48,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:08:48,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:48,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:08:48,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:08:48,322 INFO L87 Difference]: Start difference. First operand 319 states and 492 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:08:49,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:49,212 INFO L93 Difference]: Finished difference Result 525 states and 789 transitions. [2023-12-16 01:08:49,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:08:49,214 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2023-12-16 01:08:49,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:49,234 INFO L225 Difference]: With dead ends: 525 [2023-12-16 01:08:49,235 INFO L226 Difference]: Without dead ends: 444 [2023-12-16 01:08:49,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:08:49,238 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 616 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:49,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1252 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:08:49,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-12-16 01:08:49,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 407. [2023-12-16 01:08:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 337 states have (on average 1.543026706231454) internal successors, (520), 343 states have internal predecessors, (520), 46 states have call successors, (46), 21 states have call predecessors, (46), 22 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2023-12-16 01:08:49,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 615 transitions. [2023-12-16 01:08:49,310 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 615 transitions. Word has length 58 [2023-12-16 01:08:49,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:49,311 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 615 transitions. [2023-12-16 01:08:49,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:08:49,312 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 615 transitions. [2023-12-16 01:08:49,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:49,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:49,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:49,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:08:49,317 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:49,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:49,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1203623975, now seen corresponding path program 1 times [2023-12-16 01:08:49,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:49,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813029265] [2023-12-16 01:08:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:49,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:49,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:49,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813029265] [2023-12-16 01:08:49,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813029265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:49,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:49,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:08:49,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572148088] [2023-12-16 01:08:49,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:49,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:08:49,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:49,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:08:49,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:08:49,461 INFO L87 Difference]: Start difference. First operand 407 states and 615 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:08:50,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:50,414 INFO L93 Difference]: Finished difference Result 727 states and 1064 transitions. [2023-12-16 01:08:50,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 01:08:50,415 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2023-12-16 01:08:50,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:50,417 INFO L225 Difference]: With dead ends: 727 [2023-12-16 01:08:50,417 INFO L226 Difference]: Without dead ends: 565 [2023-12-16 01:08:50,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-12-16 01:08:50,419 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 1269 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:50,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 1263 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:08:50,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-12-16 01:08:50,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 495. [2023-12-16 01:08:50,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 405 states have (on average 1.5185185185185186) internal successors, (615), 413 states have internal predecessors, (615), 57 states have call successors, (57), 28 states have call predecessors, (57), 31 states have return successors, (68), 57 states have call predecessors, (68), 55 states have call successors, (68) [2023-12-16 01:08:50,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 740 transitions. [2023-12-16 01:08:50,452 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 740 transitions. Word has length 58 [2023-12-16 01:08:50,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:50,452 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 740 transitions. [2023-12-16 01:08:50,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:08:50,452 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 740 transitions. [2023-12-16 01:08:50,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:50,454 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:50,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:50,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:08:50,454 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:50,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:50,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1163070619, now seen corresponding path program 1 times [2023-12-16 01:08:50,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:50,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067894282] [2023-12-16 01:08:50,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:50,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:50,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:50,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067894282] [2023-12-16 01:08:50,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067894282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:50,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:50,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:08:50,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276989901] [2023-12-16 01:08:50,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:50,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:08:50,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:50,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:08:50,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:08:50,559 INFO L87 Difference]: Start difference. First operand 495 states and 740 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:08:51,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:51,519 INFO L93 Difference]: Finished difference Result 795 states and 1167 transitions. [2023-12-16 01:08:51,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 01:08:51,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-16 01:08:51,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:51,522 INFO L225 Difference]: With dead ends: 795 [2023-12-16 01:08:51,523 INFO L226 Difference]: Without dead ends: 551 [2023-12-16 01:08:51,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:08:51,524 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 427 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:51,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 1735 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1588 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:08:51,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-12-16 01:08:51,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 507. [2023-12-16 01:08:51,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 414 states have (on average 1.5072463768115942) internal successors, (624), 422 states have internal predecessors, (624), 57 states have call successors, (57), 28 states have call predecessors, (57), 34 states have return successors, (71), 60 states have call predecessors, (71), 55 states have call successors, (71) [2023-12-16 01:08:51,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 752 transitions. [2023-12-16 01:08:51,547 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 752 transitions. Word has length 58 [2023-12-16 01:08:51,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:51,548 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 752 transitions. [2023-12-16 01:08:51,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:08:51,548 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 752 transitions. [2023-12-16 01:08:51,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:51,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:51,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:51,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:08:51,549 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:51,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:51,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1225110233, now seen corresponding path program 1 times [2023-12-16 01:08:51,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:51,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385462487] [2023-12-16 01:08:51,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:51,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:51,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:51,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:51,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:51,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:51,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:51,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:51,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:51,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385462487] [2023-12-16 01:08:51,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385462487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:51,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:51,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:08:51,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85931484] [2023-12-16 01:08:51,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:51,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:08:51,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:51,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:08:51,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:08:51,662 INFO L87 Difference]: Start difference. First operand 507 states and 752 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:08:52,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:52,540 INFO L93 Difference]: Finished difference Result 797 states and 1156 transitions. [2023-12-16 01:08:52,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 01:08:52,540 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-16 01:08:52,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:52,543 INFO L225 Difference]: With dead ends: 797 [2023-12-16 01:08:52,543 INFO L226 Difference]: Without dead ends: 541 [2023-12-16 01:08:52,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:08:52,544 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 427 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:52,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1733 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:08:52,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-16 01:08:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 511. [2023-12-16 01:08:52,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 417 states have (on average 1.498800959232614) internal successors, (625), 425 states have internal predecessors, (625), 57 states have call successors, (57), 28 states have call predecessors, (57), 35 states have return successors, (72), 61 states have call predecessors, (72), 55 states have call successors, (72) [2023-12-16 01:08:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 754 transitions. [2023-12-16 01:08:52,562 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 754 transitions. Word has length 58 [2023-12-16 01:08:52,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:52,563 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 754 transitions. [2023-12-16 01:08:52,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:08:52,563 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 754 transitions. [2023-12-16 01:08:52,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:52,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:52,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:52,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:08:52,564 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:52,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:52,564 INFO L85 PathProgramCache]: Analyzing trace with hash 825873765, now seen corresponding path program 1 times [2023-12-16 01:08:52,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:52,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068623978] [2023-12-16 01:08:52,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:52,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:52,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:52,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:52,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:52,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:52,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:52,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:52,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:52,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:52,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:52,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068623978] [2023-12-16 01:08:52,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068623978] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:52,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:52,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 01:08:52,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798130228] [2023-12-16 01:08:52,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:52,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:08:52,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:52,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:08:52,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:08:52,647 INFO L87 Difference]: Start difference. First operand 511 states and 754 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-16 01:08:53,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:53,864 INFO L93 Difference]: Finished difference Result 1763 states and 2491 transitions. [2023-12-16 01:08:53,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-16 01:08:53,864 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 58 [2023-12-16 01:08:53,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:53,869 INFO L225 Difference]: With dead ends: 1763 [2023-12-16 01:08:53,869 INFO L226 Difference]: Without dead ends: 1485 [2023-12-16 01:08:53,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 01:08:53,872 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 2595 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2610 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 2191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:53,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2610 Valid, 1725 Invalid, 2191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:08:53,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2023-12-16 01:08:53,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1358. [2023-12-16 01:08:53,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1075 states have (on average 1.4037209302325582) internal successors, (1509), 1098 states have internal predecessors, (1509), 145 states have call successors, (145), 111 states have call predecessors, (145), 136 states have return successors, (189), 151 states have call predecessors, (189), 143 states have call successors, (189) [2023-12-16 01:08:53,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1843 transitions. [2023-12-16 01:08:53,971 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1843 transitions. Word has length 58 [2023-12-16 01:08:53,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:53,972 INFO L495 AbstractCegarLoop]: Abstraction has 1358 states and 1843 transitions. [2023-12-16 01:08:53,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-16 01:08:53,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1843 transitions. [2023-12-16 01:08:53,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 01:08:53,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:53,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:53,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:08:53,984 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:53,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:53,984 INFO L85 PathProgramCache]: Analyzing trace with hash -16093825, now seen corresponding path program 1 times [2023-12-16 01:08:53,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:53,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461989131] [2023-12-16 01:08:53,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:53,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:54,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:54,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461989131] [2023-12-16 01:08:54,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461989131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:54,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:54,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:08:54,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264471079] [2023-12-16 01:08:54,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:54,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:08:54,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:54,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:08:54,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:08:54,082 INFO L87 Difference]: Start difference. First operand 1358 states and 1843 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:08:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:54,884 INFO L93 Difference]: Finished difference Result 2532 states and 3324 transitions. [2023-12-16 01:08:54,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 01:08:54,885 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2023-12-16 01:08:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:54,890 INFO L225 Difference]: With dead ends: 2532 [2023-12-16 01:08:54,891 INFO L226 Difference]: Without dead ends: 1620 [2023-12-16 01:08:54,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-16 01:08:54,893 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 1204 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:54,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 1063 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:08:54,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2023-12-16 01:08:54,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1303. [2023-12-16 01:08:54,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1036 states have (on average 1.3996138996138996) internal successors, (1450), 1054 states have internal predecessors, (1450), 139 states have call successors, (139), 106 states have call predecessors, (139), 126 states have return successors, (174), 144 states have call predecessors, (174), 137 states have call successors, (174) [2023-12-16 01:08:54,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1763 transitions. [2023-12-16 01:08:54,968 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1763 transitions. Word has length 59 [2023-12-16 01:08:54,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:54,968 INFO L495 AbstractCegarLoop]: Abstraction has 1303 states and 1763 transitions. [2023-12-16 01:08:54,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:08:54,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1763 transitions. [2023-12-16 01:08:54,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 01:08:54,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:54,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:54,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 01:08:54,969 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:54,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:54,969 INFO L85 PathProgramCache]: Analyzing trace with hash 202760893, now seen corresponding path program 1 times [2023-12-16 01:08:54,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:54,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799004501] [2023-12-16 01:08:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:54,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:55,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:55,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799004501] [2023-12-16 01:08:55,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799004501] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:55,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:55,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:08:55,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576232564] [2023-12-16 01:08:55,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:55,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:08:55,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:55,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:08:55,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:08:55,031 INFO L87 Difference]: Start difference. First operand 1303 states and 1763 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:08:55,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:55,571 INFO L93 Difference]: Finished difference Result 3475 states and 4570 transitions. [2023-12-16 01:08:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 01:08:55,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2023-12-16 01:08:55,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:55,579 INFO L225 Difference]: With dead ends: 3475 [2023-12-16 01:08:55,579 INFO L226 Difference]: Without dead ends: 2412 [2023-12-16 01:08:55,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-12-16 01:08:55,583 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1189 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:55,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 850 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:08:55,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2023-12-16 01:08:55,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2268. [2023-12-16 01:08:55,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 1761 states have (on average 1.3373083475298126) internal successors, (2355), 1795 states have internal predecessors, (2355), 255 states have call successors, (255), 205 states have call predecessors, (255), 250 states have return successors, (362), 269 states have call predecessors, (362), 253 states have call successors, (362) [2023-12-16 01:08:55,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 2972 transitions. [2023-12-16 01:08:55,719 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 2972 transitions. Word has length 59 [2023-12-16 01:08:55,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:55,719 INFO L495 AbstractCegarLoop]: Abstraction has 2268 states and 2972 transitions. [2023-12-16 01:08:55,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 01:08:55,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 2972 transitions. [2023-12-16 01:08:55,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 01:08:55,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:55,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:55,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 01:08:55,720 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:55,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:55,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1621455622, now seen corresponding path program 1 times [2023-12-16 01:08:55,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:55,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044334094] [2023-12-16 01:08:55,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:55,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:55,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:55,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044334094] [2023-12-16 01:08:55,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044334094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:55,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:55,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:08:55,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026273916] [2023-12-16 01:08:55,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:55,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:08:55,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:55,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:08:55,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:08:55,765 INFO L87 Difference]: Start difference. First operand 2268 states and 2972 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:08:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:56,389 INFO L93 Difference]: Finished difference Result 5289 states and 6834 transitions. [2023-12-16 01:08:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:08:56,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2023-12-16 01:08:56,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:56,401 INFO L225 Difference]: With dead ends: 5289 [2023-12-16 01:08:56,401 INFO L226 Difference]: Without dead ends: 3261 [2023-12-16 01:08:56,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:08:56,407 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 589 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:56,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1037 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:08:56,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3261 states. [2023-12-16 01:08:56,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3261 to 2975. [2023-12-16 01:08:56,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2297 states have (on average 1.3208532868959513) internal successors, (3034), 2336 states have internal predecessors, (3034), 339 states have call successors, (339), 278 states have call predecessors, (339), 337 states have return successors, (466), 362 states have call predecessors, (466), 337 states have call successors, (466) [2023-12-16 01:08:56,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 3839 transitions. [2023-12-16 01:08:56,558 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 3839 transitions. Word has length 60 [2023-12-16 01:08:56,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:56,559 INFO L495 AbstractCegarLoop]: Abstraction has 2975 states and 3839 transitions. [2023-12-16 01:08:56,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:08:56,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 3839 transitions. [2023-12-16 01:08:56,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 01:08:56,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:56,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:56,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:08:56,561 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:56,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:56,562 INFO L85 PathProgramCache]: Analyzing trace with hash -2046954023, now seen corresponding path program 1 times [2023-12-16 01:08:56,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:56,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526302818] [2023-12-16 01:08:56,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:56,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:56,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:56,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526302818] [2023-12-16 01:08:56,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526302818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:56,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:56,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:08:56,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539209860] [2023-12-16 01:08:56,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:56,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:08:56,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:56,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:08:56,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:08:56,610 INFO L87 Difference]: Start difference. First operand 2975 states and 3839 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:08:57,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:57,195 INFO L93 Difference]: Finished difference Result 6241 states and 7934 transitions. [2023-12-16 01:08:57,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:08:57,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2023-12-16 01:08:57,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:57,207 INFO L225 Difference]: With dead ends: 6241 [2023-12-16 01:08:57,207 INFO L226 Difference]: Without dead ends: 3505 [2023-12-16 01:08:57,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:08:57,211 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 1139 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:57,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 707 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:08:57,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3505 states. [2023-12-16 01:08:57,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3505 to 3228. [2023-12-16 01:08:57,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3228 states, 2493 states have (on average 1.312876052948255) internal successors, (3273), 2534 states have internal predecessors, (3273), 367 states have call successors, (367), 303 states have call predecessors, (367), 366 states have return successors, (498), 392 states have call predecessors, (498), 365 states have call successors, (498) [2023-12-16 01:08:57,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3228 states to 3228 states and 4138 transitions. [2023-12-16 01:08:57,334 INFO L78 Accepts]: Start accepts. Automaton has 3228 states and 4138 transitions. Word has length 66 [2023-12-16 01:08:57,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:57,335 INFO L495 AbstractCegarLoop]: Abstraction has 3228 states and 4138 transitions. [2023-12-16 01:08:57,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:08:57,335 INFO L276 IsEmpty]: Start isEmpty. Operand 3228 states and 4138 transitions. [2023-12-16 01:08:57,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 01:08:57,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:57,337 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:57,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 01:08:57,337 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:57,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:57,338 INFO L85 PathProgramCache]: Analyzing trace with hash 452364123, now seen corresponding path program 1 times [2023-12-16 01:08:57,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:57,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566765] [2023-12-16 01:08:57,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:57,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:57,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:57,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566765] [2023-12-16 01:08:57,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:57,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:57,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:08:57,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128266385] [2023-12-16 01:08:57,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:57,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:08:57,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:57,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:08:57,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:08:57,403 INFO L87 Difference]: Start difference. First operand 3228 states and 4138 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 01:08:58,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:58,069 INFO L93 Difference]: Finished difference Result 4249 states and 5371 transitions. [2023-12-16 01:08:58,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 01:08:58,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2023-12-16 01:08:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:58,084 INFO L225 Difference]: With dead ends: 4249 [2023-12-16 01:08:58,085 INFO L226 Difference]: Without dead ends: 4246 [2023-12-16 01:08:58,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-12-16 01:08:58,087 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 1604 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:58,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 685 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:08:58,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2023-12-16 01:08:58,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 3648. [2023-12-16 01:08:58,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 2806 states have (on average 1.300784034212402) internal successors, (3650), 2850 states have internal predecessors, (3650), 417 states have call successors, (417), 347 states have call predecessors, (417), 423 states have return successors, (575), 452 states have call predecessors, (575), 416 states have call successors, (575) [2023-12-16 01:08:58,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 4642 transitions. [2023-12-16 01:08:58,306 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 4642 transitions. Word has length 67 [2023-12-16 01:08:58,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:58,307 INFO L495 AbstractCegarLoop]: Abstraction has 3648 states and 4642 transitions. [2023-12-16 01:08:58,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 01:08:58,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 4642 transitions. [2023-12-16 01:08:58,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 01:08:58,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:58,308 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:58,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 01:08:58,309 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:58,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:58,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1137311331, now seen corresponding path program 1 times [2023-12-16 01:08:58,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:58,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200284178] [2023-12-16 01:08:58,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:58,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:58,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:58,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200284178] [2023-12-16 01:08:58,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200284178] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:08:58,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277647576] [2023-12-16 01:08:58,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:58,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:08:58,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:08:58,427 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:08:58,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 01:08:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 01:08:58,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:08:58,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:58,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 01:08:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:58,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277647576] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 01:08:58,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 01:08:58,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2023-12-16 01:08:58,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493138673] [2023-12-16 01:08:58,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 01:08:58,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:08:58,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:58,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:08:58,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:08:58,832 INFO L87 Difference]: Start difference. First operand 3648 states and 4642 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 01:09:00,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:00,105 INFO L93 Difference]: Finished difference Result 7648 states and 9548 transitions. [2023-12-16 01:09:00,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-16 01:09:00,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 68 [2023-12-16 01:09:00,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:00,130 INFO L225 Difference]: With dead ends: 7648 [2023-12-16 01:09:00,131 INFO L226 Difference]: Without dead ends: 7645 [2023-12-16 01:09:00,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=593, Unknown=0, NotChecked=0, Total=756 [2023-12-16 01:09:00,135 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 1560 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:00,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 1600 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:09:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7645 states. [2023-12-16 01:09:00,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7645 to 6765. [2023-12-16 01:09:00,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6765 states, 5181 states have (on average 1.2823779193205944) internal successors, (6644), 5260 states have internal predecessors, (6644), 776 states have call successors, (776), 661 states have call predecessors, (776), 806 states have return successors, (1076), 845 states have call predecessors, (1076), 775 states have call successors, (1076) [2023-12-16 01:09:00,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6765 states to 6765 states and 8496 transitions. [2023-12-16 01:09:00,559 INFO L78 Accepts]: Start accepts. Automaton has 6765 states and 8496 transitions. Word has length 68 [2023-12-16 01:09:00,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:00,560 INFO L495 AbstractCegarLoop]: Abstraction has 6765 states and 8496 transitions. [2023-12-16 01:09:00,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 01:09:00,561 INFO L276 IsEmpty]: Start isEmpty. Operand 6765 states and 8496 transitions. [2023-12-16 01:09:00,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 01:09:00,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:00,561 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:00,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 01:09:00,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-16 01:09:00,766 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:00,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:00,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1674462171, now seen corresponding path program 2 times [2023-12-16 01:09:00,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:00,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698646866] [2023-12-16 01:09:00,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:00,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:00,825 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:00,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:00,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698646866] [2023-12-16 01:09:00,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698646866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:00,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:00,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:09:00,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281871644] [2023-12-16 01:09:00,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:00,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:09:00,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:00,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:09:00,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:09:00,826 INFO L87 Difference]: Start difference. First operand 6765 states and 8496 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 01:09:01,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:01,518 INFO L93 Difference]: Finished difference Result 9160 states and 11512 transitions. [2023-12-16 01:09:01,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 01:09:01,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2023-12-16 01:09:01,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:01,538 INFO L225 Difference]: With dead ends: 9160 [2023-12-16 01:09:01,538 INFO L226 Difference]: Without dead ends: 3522 [2023-12-16 01:09:01,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:09:01,547 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 871 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:01,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 942 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:09:01,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2023-12-16 01:09:01,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 2599. [2023-12-16 01:09:01,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 2019 states have (on average 1.2887568103021299) internal successors, (2602), 2044 states have internal predecessors, (2602), 296 states have call successors, (296), 244 states have call predecessors, (296), 282 states have return successors, (377), 312 states have call predecessors, (377), 295 states have call successors, (377) [2023-12-16 01:09:01,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 3275 transitions. [2023-12-16 01:09:01,759 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 3275 transitions. Word has length 71 [2023-12-16 01:09:01,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:01,759 INFO L495 AbstractCegarLoop]: Abstraction has 2599 states and 3275 transitions. [2023-12-16 01:09:01,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 01:09:01,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 3275 transitions. [2023-12-16 01:09:01,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 01:09:01,761 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:01,761 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:01,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 01:09:01,761 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:01,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:01,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1869570032, now seen corresponding path program 1 times [2023-12-16 01:09:01,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:01,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321453441] [2023-12-16 01:09:01,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:01,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 01:09:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,859 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 01:09:01,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:01,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321453441] [2023-12-16 01:09:01,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321453441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:01,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:01,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:09:01,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319493220] [2023-12-16 01:09:01,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:01,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:09:01,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:01,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:09:01,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:09:01,861 INFO L87 Difference]: Start difference. First operand 2599 states and 3275 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 01:09:02,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:02,891 INFO L93 Difference]: Finished difference Result 7380 states and 9161 transitions. [2023-12-16 01:09:02,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 01:09:02,891 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2023-12-16 01:09:02,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:02,908 INFO L225 Difference]: With dead ends: 7380 [2023-12-16 01:09:02,908 INFO L226 Difference]: Without dead ends: 5021 [2023-12-16 01:09:02,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-12-16 01:09:02,912 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1151 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:02,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 1341 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:09:02,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5021 states. [2023-12-16 01:09:03,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5021 to 4714. [2023-12-16 01:09:03,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4714 states, 3568 states have (on average 1.2494394618834082) internal successors, (4458), 3667 states have internal predecessors, (4458), 563 states have call successors, (563), 472 states have call predecessors, (563), 581 states have return successors, (822), 577 states have call predecessors, (822), 562 states have call successors, (822) [2023-12-16 01:09:03,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4714 states to 4714 states and 5843 transitions. [2023-12-16 01:09:03,118 INFO L78 Accepts]: Start accepts. Automaton has 4714 states and 5843 transitions. Word has length 76 [2023-12-16 01:09:03,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:03,118 INFO L495 AbstractCegarLoop]: Abstraction has 4714 states and 5843 transitions. [2023-12-16 01:09:03,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 01:09:03,118 INFO L276 IsEmpty]: Start isEmpty. Operand 4714 states and 5843 transitions. [2023-12-16 01:09:03,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 01:09:03,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:03,121 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:03,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 01:09:03,121 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:03,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:03,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1003178990, now seen corresponding path program 1 times [2023-12-16 01:09:03,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:03,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729291147] [2023-12-16 01:09:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:03,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:09:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:09:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:09:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:09:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:09:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 01:09:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 01:09:03,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:03,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729291147] [2023-12-16 01:09:03,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729291147] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:03,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:03,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:09:03,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802743306] [2023-12-16 01:09:03,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:03,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:09:03,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:03,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:09:03,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:09:03,213 INFO L87 Difference]: Start difference. First operand 4714 states and 5843 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 01:09:04,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:04,328 INFO L93 Difference]: Finished difference Result 7381 states and 9128 transitions. [2023-12-16 01:09:04,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 01:09:04,329 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2023-12-16 01:09:04,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:04,358 INFO L225 Difference]: With dead ends: 7381 [2023-12-16 01:09:04,358 INFO L226 Difference]: Without dead ends: 3447 [2023-12-16 01:09:04,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2023-12-16 01:09:04,379 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 2054 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2088 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:04,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2088 Valid, 1123 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:09:04,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2023-12-16 01:09:04,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3093. [2023-12-16 01:09:04,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 2342 states have (on average 1.2421007685738685) internal successors, (2909), 2412 states have internal predecessors, (2909), 365 states have call successors, (365), 299 states have call predecessors, (365), 384 states have return successors, (507), 384 states have call predecessors, (507), 364 states have call successors, (507) [2023-12-16 01:09:04,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 3781 transitions. [2023-12-16 01:09:04,566 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 3781 transitions. Word has length 86 [2023-12-16 01:09:04,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:04,566 INFO L495 AbstractCegarLoop]: Abstraction has 3093 states and 3781 transitions. [2023-12-16 01:09:04,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 01:09:04,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 3781 transitions. [2023-12-16 01:09:04,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:04,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:04,569 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] [2023-12-16 01:09:04,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 01:09:04,569 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:04,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:04,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1922821528, now seen corresponding path program 1 times [2023-12-16 01:09:04,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:04,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695440662] [2023-12-16 01:09:04,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:04,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:04,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:04,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:04,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:04,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:04,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:04,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:04,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:04,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695440662] [2023-12-16 01:09:04,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695440662] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:04,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:04,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:04,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411174024] [2023-12-16 01:09:04,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:04,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:04,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:04,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:04,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:04,660 INFO L87 Difference]: Start difference. First operand 3093 states and 3781 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) [2023-12-16 01:09:06,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:06,151 INFO L93 Difference]: Finished difference Result 3433 states and 4349 transitions. [2023-12-16 01:09:06,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 01:09:06,152 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 [2023-12-16 01:09:06,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:06,159 INFO L225 Difference]: With dead ends: 3433 [2023-12-16 01:09:06,159 INFO L226 Difference]: Without dead ends: 3209 [2023-12-16 01:09:06,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-12-16 01:09:06,160 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 862 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:06,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1069 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:09:06,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3209 states. [2023-12-16 01:09:06,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3209 to 3095. [2023-12-16 01:09:06,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3095 states, 2344 states have (on average 1.2414675767918089) internal successors, (2910), 2414 states have internal predecessors, (2910), 365 states have call successors, (365), 299 states have call predecessors, (365), 384 states have return successors, (507), 384 states have call predecessors, (507), 364 states have call successors, (507) [2023-12-16 01:09:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 3782 transitions. [2023-12-16 01:09:06,459 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 3782 transitions. Word has length 111 [2023-12-16 01:09:06,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:06,459 INFO L495 AbstractCegarLoop]: Abstraction has 3095 states and 3782 transitions. [2023-12-16 01:09:06,459 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) [2023-12-16 01:09:06,459 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 3782 transitions. [2023-12-16 01:09:06,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:06,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:06,461 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] [2023-12-16 01:09:06,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 01:09:06,461 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:06,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:06,462 INFO L85 PathProgramCache]: Analyzing trace with hash 173835160, now seen corresponding path program 1 times [2023-12-16 01:09:06,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:06,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229005309] [2023-12-16 01:09:06,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:06,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:06,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:06,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:06,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:06,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:06,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:06,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:06,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:06,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229005309] [2023-12-16 01:09:06,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229005309] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:06,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:06,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:09:06,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894711834] [2023-12-16 01:09:06,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:06,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:09:06,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:06,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:09:06,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:09:06,575 INFO L87 Difference]: Start difference. First operand 3095 states and 3782 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) [2023-12-16 01:09:08,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:08,261 INFO L93 Difference]: Finished difference Result 3708 states and 4786 transitions. [2023-12-16 01:09:08,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:09:08,262 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 [2023-12-16 01:09:08,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:08,269 INFO L225 Difference]: With dead ends: 3708 [2023-12-16 01:09:08,270 INFO L226 Difference]: Without dead ends: 3488 [2023-12-16 01:09:08,271 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 [2023-12-16 01:09:08,271 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1132 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:08,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 888 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 01:09:08,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3488 states. [2023-12-16 01:09:08,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3488 to 3325. [2023-12-16 01:09:08,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3325 states, 2551 states have (on average 1.2720501764014112) internal successors, (3245), 2622 states have internal predecessors, (3245), 381 states have call successors, (381), 305 states have call predecessors, (381), 391 states have return successors, (526), 400 states have call predecessors, (526), 380 states have call successors, (526) [2023-12-16 01:09:08,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3325 states to 3325 states and 4152 transitions. [2023-12-16 01:09:08,551 INFO L78 Accepts]: Start accepts. Automaton has 3325 states and 4152 transitions. Word has length 111 [2023-12-16 01:09:08,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:08,551 INFO L495 AbstractCegarLoop]: Abstraction has 3325 states and 4152 transitions. [2023-12-16 01:09:08,551 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) [2023-12-16 01:09:08,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3325 states and 4152 transitions. [2023-12-16 01:09:08,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:08,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:08,553 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] [2023-12-16 01:09:08,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 01:09:08,553 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:08,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:08,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1525220378, now seen corresponding path program 1 times [2023-12-16 01:09:08,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:08,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750944723] [2023-12-16 01:09:08,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:08,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:08,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:08,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750944723] [2023-12-16 01:09:08,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750944723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:08,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:08,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:08,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282375428] [2023-12-16 01:09:08,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:08,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:08,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:08,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:08,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:08,680 INFO L87 Difference]: Start difference. First operand 3325 states and 4152 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) [2023-12-16 01:09:10,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:10,905 INFO L93 Difference]: Finished difference Result 4259 states and 5678 transitions. [2023-12-16 01:09:10,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:09:10,906 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 [2023-12-16 01:09:10,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:10,913 INFO L225 Difference]: With dead ends: 4259 [2023-12-16 01:09:10,913 INFO L226 Difference]: Without dead ends: 3809 [2023-12-16 01:09:10,914 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 [2023-12-16 01:09:10,915 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 1147 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 2618 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 2703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:10,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1552 Invalid, 2703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2618 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 01:09:10,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3809 states. [2023-12-16 01:09:11,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3809 to 3538. [2023-12-16 01:09:11,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3538 states, 2741 states have (on average 1.2936884348777817) internal successors, (3546), 2813 states have internal predecessors, (3546), 397 states have call successors, (397), 311 states have call predecessors, (397), 398 states have return successors, (544), 417 states have call predecessors, (544), 396 states have call successors, (544) [2023-12-16 01:09:11,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 4487 transitions. [2023-12-16 01:09:11,263 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 4487 transitions. Word has length 111 [2023-12-16 01:09:11,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:11,263 INFO L495 AbstractCegarLoop]: Abstraction has 3538 states and 4487 transitions. [2023-12-16 01:09:11,263 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) [2023-12-16 01:09:11,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 4487 transitions. [2023-12-16 01:09:11,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:11,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:11,266 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] [2023-12-16 01:09:11,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 01:09:11,266 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:11,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:11,266 INFO L85 PathProgramCache]: Analyzing trace with hash -93754536, now seen corresponding path program 1 times [2023-12-16 01:09:11,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:11,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970359831] [2023-12-16 01:09:11,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:11,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:11,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:11,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:11,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970359831] [2023-12-16 01:09:11,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970359831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:11,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:11,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:11,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180555768] [2023-12-16 01:09:11,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:11,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:11,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:11,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:11,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:11,430 INFO L87 Difference]: Start difference. First operand 3538 states and 4487 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) [2023-12-16 01:09:13,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:13,831 INFO L93 Difference]: Finished difference Result 5067 states and 6979 transitions. [2023-12-16 01:09:13,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:09:13,832 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 [2023-12-16 01:09:13,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:13,840 INFO L225 Difference]: With dead ends: 5067 [2023-12-16 01:09:13,841 INFO L226 Difference]: Without dead ends: 4404 [2023-12-16 01:09:13,843 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 [2023-12-16 01:09:13,843 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 1145 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 2614 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:13,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1169 Valid, 1550 Invalid, 2701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2614 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 01:09:13,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4404 states. [2023-12-16 01:09:14,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4404 to 3965. [2023-12-16 01:09:14,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 3122 states have (on average 1.328955797565663) internal successors, (4149), 3196 states have internal predecessors, (4149), 429 states have call successors, (429), 323 states have call predecessors, (429), 412 states have return successors, (584), 451 states have call predecessors, (584), 428 states have call successors, (584) [2023-12-16 01:09:14,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5162 transitions. [2023-12-16 01:09:14,140 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5162 transitions. Word has length 111 [2023-12-16 01:09:14,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:14,140 INFO L495 AbstractCegarLoop]: Abstraction has 3965 states and 5162 transitions. [2023-12-16 01:09:14,141 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) [2023-12-16 01:09:14,141 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5162 transitions. [2023-12-16 01:09:14,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:14,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:14,143 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] [2023-12-16 01:09:14,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 01:09:14,143 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:14,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:14,144 INFO L85 PathProgramCache]: Analyzing trace with hash -977263526, now seen corresponding path program 1 times [2023-12-16 01:09:14,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:14,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627194964] [2023-12-16 01:09:14,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:14,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:14,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:14,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627194964] [2023-12-16 01:09:14,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627194964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:14,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:14,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:14,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821491972] [2023-12-16 01:09:14,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:14,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:14,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:14,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:14,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:14,263 INFO L87 Difference]: Start difference. First operand 3965 states and 5162 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) [2023-12-16 01:09:15,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:15,511 INFO L93 Difference]: Finished difference Result 5484 states and 7647 transitions. [2023-12-16 01:09:15,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:15,511 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 [2023-12-16 01:09:15,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:15,520 INFO L225 Difference]: With dead ends: 5484 [2023-12-16 01:09:15,520 INFO L226 Difference]: Without dead ends: 4394 [2023-12-16 01:09:15,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:15,523 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 1038 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:15,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 752 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:09:15,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2023-12-16 01:09:15,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 3965. [2023-12-16 01:09:15,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 3122 states have (on average 1.3273542600896862) internal successors, (4144), 3196 states have internal predecessors, (4144), 429 states have call successors, (429), 323 states have call predecessors, (429), 412 states have return successors, (584), 451 states have call predecessors, (584), 428 states have call successors, (584) [2023-12-16 01:09:15,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5157 transitions. [2023-12-16 01:09:15,867 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5157 transitions. Word has length 111 [2023-12-16 01:09:15,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:15,867 INFO L495 AbstractCegarLoop]: Abstraction has 3965 states and 5157 transitions. [2023-12-16 01:09:15,867 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) [2023-12-16 01:09:15,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5157 transitions. [2023-12-16 01:09:15,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:15,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:15,869 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] [2023-12-16 01:09:15,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 01:09:15,869 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:15,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:15,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1005763816, now seen corresponding path program 1 times [2023-12-16 01:09:15,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:15,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898887911] [2023-12-16 01:09:15,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:15,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:15,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:15,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:15,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:15,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:15,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:15,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:15,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898887911] [2023-12-16 01:09:15,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898887911] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:15,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:15,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:15,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272950534] [2023-12-16 01:09:15,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:15,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:15,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:15,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:15,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:15,984 INFO L87 Difference]: Start difference. First operand 3965 states and 5157 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) [2023-12-16 01:09:17,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:17,494 INFO L93 Difference]: Finished difference Result 5473 states and 7611 transitions. [2023-12-16 01:09:17,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:17,494 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 [2023-12-16 01:09:17,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:17,516 INFO L225 Difference]: With dead ends: 5473 [2023-12-16 01:09:17,516 INFO L226 Difference]: Without dead ends: 4383 [2023-12-16 01:09:17,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:17,518 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 890 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:17,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 904 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 01:09:17,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4383 states. [2023-12-16 01:09:17,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4383 to 3965. [2023-12-16 01:09:17,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 3122 states have (on average 1.3257527226137091) internal successors, (4139), 3196 states have internal predecessors, (4139), 429 states have call successors, (429), 323 states have call predecessors, (429), 412 states have return successors, (584), 451 states have call predecessors, (584), 428 states have call successors, (584) [2023-12-16 01:09:17,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5152 transitions. [2023-12-16 01:09:17,841 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5152 transitions. Word has length 111 [2023-12-16 01:09:17,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:17,842 INFO L495 AbstractCegarLoop]: Abstraction has 3965 states and 5152 transitions. [2023-12-16 01:09:17,842 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) [2023-12-16 01:09:17,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5152 transitions. [2023-12-16 01:09:17,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:17,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:17,844 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] [2023-12-16 01:09:17,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 01:09:17,844 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:17,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:17,845 INFO L85 PathProgramCache]: Analyzing trace with hash 871299414, now seen corresponding path program 1 times [2023-12-16 01:09:17,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:17,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548899781] [2023-12-16 01:09:17,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:17,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:17,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:17,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548899781] [2023-12-16 01:09:17,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548899781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:17,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:17,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:17,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86324733] [2023-12-16 01:09:17,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:17,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:17,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:17,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:17,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:17,979 INFO L87 Difference]: Start difference. First operand 3965 states and 5152 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) [2023-12-16 01:09:20,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:20,110 INFO L93 Difference]: Finished difference Result 6601 states and 9388 transitions. [2023-12-16 01:09:20,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:09:20,111 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 [2023-12-16 01:09:20,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:20,122 INFO L225 Difference]: With dead ends: 6601 [2023-12-16 01:09:20,122 INFO L226 Difference]: Without dead ends: 5511 [2023-12-16 01:09:20,126 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 [2023-12-16 01:09:20,127 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 1132 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 2532 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 2619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:20,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 1550 Invalid, 2619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2532 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 01:09:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5511 states. [2023-12-16 01:09:20,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5511 to 4834. [2023-12-16 01:09:20,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4834 states, 3899 states have (on average 1.374198512439087) internal successors, (5358), 3977 states have internal predecessors, (5358), 493 states have call successors, (493), 347 states have call predecessors, (493), 440 states have return successors, (670), 519 states have call predecessors, (670), 492 states have call successors, (670) [2023-12-16 01:09:20,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4834 states to 4834 states and 6521 transitions. [2023-12-16 01:09:20,504 INFO L78 Accepts]: Start accepts. Automaton has 4834 states and 6521 transitions. Word has length 111 [2023-12-16 01:09:20,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:20,504 INFO L495 AbstractCegarLoop]: Abstraction has 4834 states and 6521 transitions. [2023-12-16 01:09:20,504 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) [2023-12-16 01:09:20,504 INFO L276 IsEmpty]: Start isEmpty. Operand 4834 states and 6521 transitions. [2023-12-16 01:09:20,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:20,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:20,507 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] [2023-12-16 01:09:20,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 01:09:20,507 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:20,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:20,507 INFO L85 PathProgramCache]: Analyzing trace with hash 100565848, now seen corresponding path program 1 times [2023-12-16 01:09:20,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:20,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154840601] [2023-12-16 01:09:20,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:20,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:20,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:20,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154840601] [2023-12-16 01:09:20,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154840601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:20,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:20,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:20,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695373729] [2023-12-16 01:09:20,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:20,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:20,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:20,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:20,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:20,607 INFO L87 Difference]: Start difference. First operand 4834 states and 6521 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) [2023-12-16 01:09:21,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:21,928 INFO L93 Difference]: Finished difference Result 7475 states and 10792 transitions. [2023-12-16 01:09:21,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:21,929 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 [2023-12-16 01:09:21,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:21,939 INFO L225 Difference]: With dead ends: 7475 [2023-12-16 01:09:21,940 INFO L226 Difference]: Without dead ends: 5516 [2023-12-16 01:09:21,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:21,943 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 1033 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:21,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 752 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:09:21,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5516 states. [2023-12-16 01:09:22,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5516 to 4834. [2023-12-16 01:09:22,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4834 states, 3899 states have (on average 1.3718902282636574) internal successors, (5349), 3977 states have internal predecessors, (5349), 493 states have call successors, (493), 347 states have call predecessors, (493), 440 states have return successors, (670), 519 states have call predecessors, (670), 492 states have call successors, (670) [2023-12-16 01:09:22,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4834 states to 4834 states and 6512 transitions. [2023-12-16 01:09:22,337 INFO L78 Accepts]: Start accepts. Automaton has 4834 states and 6512 transitions. Word has length 111 [2023-12-16 01:09:22,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:22,337 INFO L495 AbstractCegarLoop]: Abstraction has 4834 states and 6512 transitions. [2023-12-16 01:09:22,337 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) [2023-12-16 01:09:22,337 INFO L276 IsEmpty]: Start isEmpty. Operand 4834 states and 6512 transitions. [2023-12-16 01:09:22,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:22,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:22,355 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] [2023-12-16 01:09:22,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 01:09:22,355 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:22,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:22,355 INFO L85 PathProgramCache]: Analyzing trace with hash -894127850, now seen corresponding path program 1 times [2023-12-16 01:09:22,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:22,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406260657] [2023-12-16 01:09:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:22,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:22,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:22,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:22,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:22,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:22,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:22,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:22,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406260657] [2023-12-16 01:09:22,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406260657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:22,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:22,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:22,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314227645] [2023-12-16 01:09:22,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:22,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:22,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:22,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:22,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:22,481 INFO L87 Difference]: Start difference. First operand 4834 states and 6512 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) [2023-12-16 01:09:25,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:25,053 INFO L93 Difference]: Finished difference Result 10464 states and 15487 transitions. [2023-12-16 01:09:25,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:09:25,060 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 [2023-12-16 01:09:25,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:25,075 INFO L225 Difference]: With dead ends: 10464 [2023-12-16 01:09:25,075 INFO L226 Difference]: Without dead ends: 8505 [2023-12-16 01:09:25,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:25,080 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1251 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 2563 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 2676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 2563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:25,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 1101 Invalid, 2676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 2563 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 01:09:25,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8505 states. [2023-12-16 01:09:25,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8505 to 6566. [2023-12-16 01:09:25,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6566 states, 5455 states have (on average 1.4260311640696608) internal successors, (7779), 5541 states have internal predecessors, (7779), 613 states have call successors, (613), 395 states have call predecessors, (613), 496 states have return successors, (852), 647 states have call predecessors, (852), 612 states have call successors, (852) [2023-12-16 01:09:25,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6566 states to 6566 states and 9244 transitions. [2023-12-16 01:09:25,508 INFO L78 Accepts]: Start accepts. Automaton has 6566 states and 9244 transitions. Word has length 111 [2023-12-16 01:09:25,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:25,508 INFO L495 AbstractCegarLoop]: Abstraction has 6566 states and 9244 transitions. [2023-12-16 01:09:25,508 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) [2023-12-16 01:09:25,508 INFO L276 IsEmpty]: Start isEmpty. Operand 6566 states and 9244 transitions. [2023-12-16 01:09:25,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:25,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:25,512 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] [2023-12-16 01:09:25,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 01:09:25,512 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:25,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:25,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1480404072, now seen corresponding path program 1 times [2023-12-16 01:09:25,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:25,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557935473] [2023-12-16 01:09:25,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:25,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:25,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:25,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:25,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:25,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:25,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:25,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:25,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:25,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557935473] [2023-12-16 01:09:25,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557935473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:25,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:25,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:25,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669424950] [2023-12-16 01:09:25,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:25,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:25,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:25,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:25,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:25,670 INFO L87 Difference]: Start difference. First operand 6566 states and 9244 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) [2023-12-16 01:09:28,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:28,242 INFO L93 Difference]: Finished difference Result 17214 states and 26245 transitions. [2023-12-16 01:09:28,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:09:28,242 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 [2023-12-16 01:09:28,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:28,271 INFO L225 Difference]: With dead ends: 17214 [2023-12-16 01:09:28,271 INFO L226 Difference]: Without dead ends: 13523 [2023-12-16 01:09:28,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:28,281 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1346 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 2470 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 2560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:28,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1539 Invalid, 2560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2470 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 01:09:28,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13523 states. [2023-12-16 01:09:28,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13523 to 9947. [2023-12-16 01:09:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9947 states, 8492 states have (on average 1.4744465379180405) internal successors, (12521), 8594 states have internal predecessors, (12521), 845 states have call successors, (845), 491 states have call predecessors, (845), 608 states have return successors, (1262), 895 states have call predecessors, (1262), 844 states have call successors, (1262) [2023-12-16 01:09:28,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9947 states to 9947 states and 14628 transitions. [2023-12-16 01:09:28,926 INFO L78 Accepts]: Start accepts. Automaton has 9947 states and 14628 transitions. Word has length 111 [2023-12-16 01:09:28,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:28,926 INFO L495 AbstractCegarLoop]: Abstraction has 9947 states and 14628 transitions. [2023-12-16 01:09:28,927 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) [2023-12-16 01:09:28,927 INFO L276 IsEmpty]: Start isEmpty. Operand 9947 states and 14628 transitions. [2023-12-16 01:09:28,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:28,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:28,933 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] [2023-12-16 01:09:28,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 01:09:28,933 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:28,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:28,933 INFO L85 PathProgramCache]: Analyzing trace with hash 855988438, now seen corresponding path program 1 times [2023-12-16 01:09:28,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:28,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410580998] [2023-12-16 01:09:28,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:28,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:29,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:29,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:29,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:29,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:29,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:29,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:29,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:29,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410580998] [2023-12-16 01:09:29,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410580998] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:29,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:29,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:29,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909119072] [2023-12-16 01:09:29,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:29,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:29,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:29,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:29,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:29,116 INFO L87 Difference]: Start difference. First operand 9947 states and 14628 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) [2023-12-16 01:09:30,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:30,917 INFO L93 Difference]: Finished difference Result 19191 states and 29633 transitions. [2023-12-16 01:09:30,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:30,917 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 [2023-12-16 01:09:30,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:30,948 INFO L225 Difference]: With dead ends: 19191 [2023-12-16 01:09:30,948 INFO L226 Difference]: Without dead ends: 12119 [2023-12-16 01:09:30,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:30,968 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 887 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:30,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 903 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:09:30,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12119 states. [2023-12-16 01:09:31,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12119 to 9947. [2023-12-16 01:09:31,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9947 states, 8492 states have (on average 1.4705605275553462) internal successors, (12488), 8594 states have internal predecessors, (12488), 845 states have call successors, (845), 491 states have call predecessors, (845), 608 states have return successors, (1262), 895 states have call predecessors, (1262), 844 states have call successors, (1262) [2023-12-16 01:09:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9947 states to 9947 states and 14595 transitions. [2023-12-16 01:09:31,733 INFO L78 Accepts]: Start accepts. Automaton has 9947 states and 14595 transitions. Word has length 111 [2023-12-16 01:09:31,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:31,733 INFO L495 AbstractCegarLoop]: Abstraction has 9947 states and 14595 transitions. [2023-12-16 01:09:31,733 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) [2023-12-16 01:09:31,733 INFO L276 IsEmpty]: Start isEmpty. Operand 9947 states and 14595 transitions. [2023-12-16 01:09:31,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:31,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:31,739 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] [2023-12-16 01:09:31,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 01:09:31,739 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:31,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:31,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1562496040, now seen corresponding path program 1 times [2023-12-16 01:09:31,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:31,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552770297] [2023-12-16 01:09:31,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:31,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:31,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:31,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552770297] [2023-12-16 01:09:31,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552770297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:31,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:31,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:31,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532079429] [2023-12-16 01:09:31,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:31,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:31,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:31,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:31,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:31,860 INFO L87 Difference]: Start difference. First operand 9947 states and 14595 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) [2023-12-16 01:09:34,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:34,337 INFO L93 Difference]: Finished difference Result 29703 states and 46239 transitions. [2023-12-16 01:09:34,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:09:34,337 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 [2023-12-16 01:09:34,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:34,408 INFO L225 Difference]: With dead ends: 29703 [2023-12-16 01:09:34,408 INFO L226 Difference]: Without dead ends: 22631 [2023-12-16 01:09:34,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:34,434 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 1275 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 2428 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:34,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1543 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2428 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 01:09:34,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22631 states. [2023-12-16 01:09:35,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22631 to 16821. [2023-12-16 01:09:35,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16821 states, 14694 states have (on average 1.5061930039471894) internal successors, (22132), 14828 states have internal predecessors, (22132), 1293 states have call successors, (1293), 683 states have call predecessors, (1293), 832 states have return successors, (2228), 1375 states have call predecessors, (2228), 1292 states have call successors, (2228) [2023-12-16 01:09:35,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16821 states to 16821 states and 25653 transitions. [2023-12-16 01:09:35,636 INFO L78 Accepts]: Start accepts. Automaton has 16821 states and 25653 transitions. Word has length 111 [2023-12-16 01:09:35,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:35,636 INFO L495 AbstractCegarLoop]: Abstraction has 16821 states and 25653 transitions. [2023-12-16 01:09:35,636 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) [2023-12-16 01:09:35,636 INFO L276 IsEmpty]: Start isEmpty. Operand 16821 states and 25653 transitions. [2023-12-16 01:09:35,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:35,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:35,645 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] [2023-12-16 01:09:35,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 01:09:35,645 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:35,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:35,646 INFO L85 PathProgramCache]: Analyzing trace with hash 853340310, now seen corresponding path program 1 times [2023-12-16 01:09:35,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:35,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971337165] [2023-12-16 01:09:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:35,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:35,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:35,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:35,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:35,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:35,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:35,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:35,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:35,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971337165] [2023-12-16 01:09:35,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971337165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:35,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:35,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:35,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760478038] [2023-12-16 01:09:35,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:35,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:35,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:35,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:35,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:35,779 INFO L87 Difference]: Start difference. First operand 16821 states and 25653 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) [2023-12-16 01:09:37,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:37,713 INFO L93 Difference]: Finished difference Result 34693 states and 54876 transitions. [2023-12-16 01:09:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:37,713 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 [2023-12-16 01:09:37,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:37,763 INFO L225 Difference]: With dead ends: 34693 [2023-12-16 01:09:37,763 INFO L226 Difference]: Without dead ends: 20747 [2023-12-16 01:09:37,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:37,788 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 890 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:37,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 903 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:09:37,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20747 states. [2023-12-16 01:09:38,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20747 to 16821. [2023-12-16 01:09:38,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16821 states, 14694 states have (on average 1.501769429699197) internal successors, (22067), 14828 states have internal predecessors, (22067), 1293 states have call successors, (1293), 683 states have call predecessors, (1293), 832 states have return successors, (2228), 1375 states have call predecessors, (2228), 1292 states have call successors, (2228) [2023-12-16 01:09:38,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16821 states to 16821 states and 25588 transitions. [2023-12-16 01:09:38,825 INFO L78 Accepts]: Start accepts. Automaton has 16821 states and 25588 transitions. Word has length 111 [2023-12-16 01:09:38,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:38,825 INFO L495 AbstractCegarLoop]: Abstraction has 16821 states and 25588 transitions. [2023-12-16 01:09:38,826 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) [2023-12-16 01:09:38,826 INFO L276 IsEmpty]: Start isEmpty. Operand 16821 states and 25588 transitions. [2023-12-16 01:09:38,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:38,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:38,834 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] [2023-12-16 01:09:38,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-16 01:09:38,835 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:38,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:38,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1874869036, now seen corresponding path program 1 times [2023-12-16 01:09:38,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:38,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332685202] [2023-12-16 01:09:38,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:38,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:38,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:38,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:38,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:38,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:38,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:38,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:38,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332685202] [2023-12-16 01:09:38,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332685202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:38,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:38,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:38,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896347391] [2023-12-16 01:09:38,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:38,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:38,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:38,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:38,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:38,990 INFO L87 Difference]: Start difference. First operand 16821 states and 25588 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) [2023-12-16 01:09:42,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:42,379 INFO L93 Difference]: Finished difference Result 53323 states and 84483 transitions. [2023-12-16 01:09:42,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:09:42,379 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 [2023-12-16 01:09:42,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:42,487 INFO L225 Difference]: With dead ends: 53323 [2023-12-16 01:09:42,491 INFO L226 Difference]: Without dead ends: 39377 [2023-12-16 01:09:42,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:42,544 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 1158 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 2466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:42,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 1543 Invalid, 2466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:09:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39377 states. [2023-12-16 01:09:44,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39377 to 30696. [2023-12-16 01:09:44,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30696 states, 27257 states have (on average 1.5241956194738966) internal successors, (41545), 27455 states have internal predecessors, (41545), 2157 states have call successors, (2157), 1067 states have call predecessors, (2157), 1280 states have return successors, (4614), 2303 states have call predecessors, (4614), 2156 states have call successors, (4614) [2023-12-16 01:09:44,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30696 states to 30696 states and 48316 transitions. [2023-12-16 01:09:44,558 INFO L78 Accepts]: Start accepts. Automaton has 30696 states and 48316 transitions. Word has length 111 [2023-12-16 01:09:44,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:44,559 INFO L495 AbstractCegarLoop]: Abstraction has 30696 states and 48316 transitions. [2023-12-16 01:09:44,562 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) [2023-12-16 01:09:44,562 INFO L276 IsEmpty]: Start isEmpty. Operand 30696 states and 48316 transitions. [2023-12-16 01:09:44,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:09:44,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:44,575 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] [2023-12-16 01:09:44,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-16 01:09:44,575 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:44,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:44,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1362260182, now seen corresponding path program 1 times [2023-12-16 01:09:44,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:44,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728220100] [2023-12-16 01:09:44,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:44,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:44,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:44,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:09:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:44,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:09:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:44,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:09:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:44,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:09:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:44,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:44,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:44,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728220100] [2023-12-16 01:09:44,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728220100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:44,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:44,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:44,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024856852] [2023-12-16 01:09:44,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:44,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:44,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:44,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:44,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:44,777 INFO L87 Difference]: Start difference. First operand 30696 states and 48316 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) Received shutdown request... [2023-12-16 01:09:47,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 01:09:47,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-12-16 01:09:47,040 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 702 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:47,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 682 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:09:47,041 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 01:09:47,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-16 01:09:47,042 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (30696states) and FLOYD_HOARE automaton (currently 12 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (20743 states constructed, input type IntersectNwa). [2023-12-16 01:09:47,043 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 01:09:47,045 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:47,046 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:09:47,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:09:47 BoogieIcfgContainer [2023-12-16 01:09:47,048 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:09:47,048 INFO L158 Benchmark]: Toolchain (without parser) took 61497.25ms. Allocated memory was 317.7MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 266.8MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 718.8MB. Max. memory is 8.0GB. [2023-12-16 01:09:47,048 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 184.5MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:09:47,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.62ms. Allocated memory is still 317.7MB. Free memory was 266.8MB in the beginning and 243.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 01:09:47,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.04ms. Allocated memory is still 317.7MB. Free memory was 243.8MB in the beginning and 240.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 01:09:47,048 INFO L158 Benchmark]: Boogie Preprocessor took 119.97ms. Allocated memory is still 317.7MB. Free memory was 240.1MB in the beginning and 235.2MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 01:09:47,048 INFO L158 Benchmark]: RCFGBuilder took 853.73ms. Allocated memory is still 317.7MB. Free memory was 235.2MB in the beginning and 263.0MB in the end (delta: -27.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-16 01:09:47,048 INFO L158 Benchmark]: TraceAbstraction took 59987.37ms. Allocated memory was 317.7MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 261.9MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 713.5MB. Max. memory is 8.0GB. [2023-12-16 01:09:47,049 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 184.5MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 475.62ms. Allocated memory is still 317.7MB. Free memory was 266.8MB in the beginning and 243.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.04ms. Allocated memory is still 317.7MB. Free memory was 243.8MB in the beginning and 240.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 119.97ms. Allocated memory is still 317.7MB. Free memory was 240.1MB in the beginning and 235.2MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 853.73ms. Allocated memory is still 317.7MB. Free memory was 235.2MB in the beginning and 263.0MB in the end (delta: -27.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 59987.37ms. Allocated memory was 317.7MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 261.9MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 713.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 496]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 496). Cancelled while NwaCegarLoop was constructing difference of abstraction (30696states) and FLOYD_HOARE automaton (currently 12 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (20743 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 28]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 28). Cancelled while NwaCegarLoop was constructing difference of abstraction (30696states) and FLOYD_HOARE automaton (currently 12 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (20743 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 324 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 59.9s, OverallIterations: 30, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 44.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33971 SdHoareTripleChecker+Valid, 27.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33298 mSDsluCounter, 35100 SdHoareTripleChecker+Invalid, 23.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26870 mSDsCounter, 4286 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44843 IncrementalHoareTripleChecker+Invalid, 49129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4286 mSolverCounterUnsat, 8230 mSDtfsCounter, 44843 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1082 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 429 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1467 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30696occurred in iteration=29, InterpolantAutomatonStates: 389, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.7s AutomataMinimizationTime, 29 MinimizatonAttempts, 33708 StatesRemovedByMinimization, 29 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 2693 NumberOfCodeBlocks, 2693 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 2729 ConstructedInterpolants, 0 QuantifiedInterpolants, 7329 SizeOfPredicates, 0 NumberOfNonLiveVariables, 341 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 32 InterpolantComputations, 29 PerfectInterpolantSequences, 43/49 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown