/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/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:27:07,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:27:07,186 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 04:27:07,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:27:07,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:27:07,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:27:07,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:27:07,228 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:27:07,229 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:27:07,232 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:27:07,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:27:07,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:27:07,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:27:07,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:27:07,234 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:27:07,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:27:07,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:27:07,235 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:27:07,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:27:07,235 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:27:07,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:27:07,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:27:07,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:27:07,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:27:07,237 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:27:07,237 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:27:07,237 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:27:07,237 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:27:07,238 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:27:07,238 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:27:07,239 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:27:07,239 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:27:07,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:27:07,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:27:07,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:27:07,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:27:07,240 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:27:07,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:27:07,240 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:27:07,240 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:27:07,241 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:27:07,241 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:27:07,241 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:27:07,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:27:07,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:27:07,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:27:07,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:27:07,512 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:27:07,513 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:27:07,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i [2023-12-16 04:27:08,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:27:08,898 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:27:08,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i [2023-12-16 04:27:08,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd78eaf00/a6c389a4d1d842bf92e2c41bc8846e1f/FLAG975958dad [2023-12-16 04:27:08,923 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd78eaf00/a6c389a4d1d842bf92e2c41bc8846e1f [2023-12-16 04:27:08,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:27:08,927 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:27:08,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:27:08,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:27:08,934 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:27:08,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:27:08" (1/1) ... [2023-12-16 04:27:08,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@641332d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:08, skipping insertion in model container [2023-12-16 04:27:08,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:27:08" (1/1) ... [2023-12-16 04:27:08,968 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:27:09,096 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i[916,929] [2023-12-16 04:27:09,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:27:09,148 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:27:09,158 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i[916,929] [2023-12-16 04:27:09,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:27:09,203 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:27:09,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09 WrapperNode [2023-12-16 04:27:09,204 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:27:09,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:27:09,206 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:27:09,206 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:27:09,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (1/1) ... [2023-12-16 04:27:09,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (1/1) ... [2023-12-16 04:27:09,250 INFO L138 Inliner]: procedures = 26, calls = 176, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 506 [2023-12-16 04:27:09,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:27:09,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:27:09,252 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:27:09,252 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:27:09,261 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (1/1) ... [2023-12-16 04:27:09,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (1/1) ... [2023-12-16 04:27:09,276 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (1/1) ... [2023-12-16 04:27:09,295 INFO L175 MemorySlicer]: Split 130 memory accesses to 16 slices as follows [2, 3, 6, 16, 8, 12, 13, 8, 14, 8, 6, 8, 6, 4, 12, 4]. 12 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 19 writes are split as follows [0, 1, 1, 1, 1, 1, 4, 1, 1, 2, 1, 1, 1, 1, 1, 1]. [2023-12-16 04:27:09,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (1/1) ... [2023-12-16 04:27:09,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (1/1) ... [2023-12-16 04:27:09,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (1/1) ... [2023-12-16 04:27:09,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (1/1) ... [2023-12-16 04:27:09,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (1/1) ... [2023-12-16 04:27:09,316 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (1/1) ... [2023-12-16 04:27:09,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:27:09,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:27:09,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:27:09,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:27:09,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (1/1) ... [2023-12-16 04:27:09,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:27:09,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:09,368 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 04:27:09,388 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 04:27:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:27:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:27:09,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:27:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-16 04:27:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-16 04:27:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-16 04:27:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-16 04:27:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-16 04:27:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-16 04:27:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-16 04:27:09,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-16 04:27:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-16 04:27:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-16 04:27:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-16 04:27:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-16 04:27:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-16 04:27:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-16 04:27:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:27:09,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:27:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-16 04:27:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-16 04:27:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-16 04:27:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-16 04:27:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-16 04:27:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-16 04:27:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-16 04:27:09,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-16 04:27:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-16 04:27:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-16 04:27:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-16 04:27:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-16 04:27:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-16 04:27:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-16 04:27:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:27:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:27:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:27:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:27:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 04:27:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 04:27:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 04:27:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-16 04:27:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-16 04:27:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-16 04:27:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-16 04:27:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-16 04:27:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-16 04:27:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-16 04:27:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-16 04:27:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-16 04:27:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-16 04:27:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-16 04:27:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:27:09,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:27:09,587 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:27:09,590 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:27:10,054 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:27:10,126 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:27:10,126 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:27:10,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:27:10 BoogieIcfgContainer [2023-12-16 04:27:10,127 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:27:10,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:27:10,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:27:10,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:27:10,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:27:08" (1/3) ... [2023-12-16 04:27:10,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303bc987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:27:10, skipping insertion in model container [2023-12-16 04:27:10,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:09" (2/3) ... [2023-12-16 04:27:10,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303bc987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:27:10, skipping insertion in model container [2023-12-16 04:27:10,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:27:10" (3/3) ... [2023-12-16 04:27:10,136 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-90.i [2023-12-16 04:27:10,150 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:27:10,151 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:27:10,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:27:10,201 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;@5f9c2db2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:27:10,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:27:10,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:27:10,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 04:27:10,225 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:10,226 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:10,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:10,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:10,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1750151490, now seen corresponding path program 1 times [2023-12-16 04:27:10,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:10,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283173934] [2023-12-16 04:27:10,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:10,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,689 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:10,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:10,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283173934] [2023-12-16 04:27:10,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283173934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:10,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:10,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:27:10,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045570316] [2023-12-16 04:27:10,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:10,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:27:10,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:10,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:27:10,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:27:10,732 INFO L87 Difference]: Start difference. First operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:27:10,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:10,801 INFO L93 Difference]: Finished difference Result 205 states and 326 transitions. [2023-12-16 04:27:10,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:27:10,803 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2023-12-16 04:27:10,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:10,809 INFO L225 Difference]: With dead ends: 205 [2023-12-16 04:27:10,809 INFO L226 Difference]: Without dead ends: 102 [2023-12-16 04:27:10,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:27:10,815 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:10,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:10,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-16 04:27:10,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-12-16 04:27:10,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.3625) internal successors, (109), 80 states have internal predecessors, (109), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:27:10,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 149 transitions. [2023-12-16 04:27:10,869 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 149 transitions. Word has length 148 [2023-12-16 04:27:10,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:10,870 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 149 transitions. [2023-12-16 04:27:10,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:27:10,873 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 149 transitions. [2023-12-16 04:27:10,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 04:27:10,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:10,876 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:10,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 04:27:10,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:10,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:10,877 INFO L85 PathProgramCache]: Analyzing trace with hash -305656682, now seen corresponding path program 1 times [2023-12-16 04:27:10,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:10,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531383789] [2023-12-16 04:27:10,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:10,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,371 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:11,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:11,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531383789] [2023-12-16 04:27:11,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531383789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:11,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:11,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:27:11,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952152524] [2023-12-16 04:27:11,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:11,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:27:11,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:11,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:27:11,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:27:11,380 INFO L87 Difference]: Start difference. First operand 102 states and 149 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:11,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:11,480 INFO L93 Difference]: Finished difference Result 231 states and 339 transitions. [2023-12-16 04:27:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:11,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2023-12-16 04:27:11,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:11,483 INFO L225 Difference]: With dead ends: 231 [2023-12-16 04:27:11,483 INFO L226 Difference]: Without dead ends: 130 [2023-12-16 04:27:11,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:11,485 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 61 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:11,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 466 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:11,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-16 04:27:11,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 104. [2023-12-16 04:27:11,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 82 states have (on average 1.353658536585366) internal successors, (111), 82 states have internal predecessors, (111), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:27:11,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 151 transitions. [2023-12-16 04:27:11,499 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 151 transitions. Word has length 148 [2023-12-16 04:27:11,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:11,500 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 151 transitions. [2023-12-16 04:27:11,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:11,501 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 151 transitions. [2023-12-16 04:27:11,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 04:27:11,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:11,503 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:11,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 04:27:11,504 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:11,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:11,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1329203845, now seen corresponding path program 1 times [2023-12-16 04:27:11,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:11,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607199816] [2023-12-16 04:27:11,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:11,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,018 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:12,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:12,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607199816] [2023-12-16 04:27:12,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607199816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:12,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:12,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:12,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631407372] [2023-12-16 04:27:12,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:12,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:12,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:12,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:12,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:12,024 INFO L87 Difference]: Start difference. First operand 104 states and 151 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:12,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:12,129 INFO L93 Difference]: Finished difference Result 312 states and 453 transitions. [2023-12-16 04:27:12,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:27:12,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-16 04:27:12,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:12,138 INFO L225 Difference]: With dead ends: 312 [2023-12-16 04:27:12,138 INFO L226 Difference]: Without dead ends: 209 [2023-12-16 04:27:12,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:12,145 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 143 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:12,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 949 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:12,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-16 04:27:12,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 109. [2023-12-16 04:27:12,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 87 states have internal predecessors, (117), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:27:12,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2023-12-16 04:27:12,163 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 150 [2023-12-16 04:27:12,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:12,163 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2023-12-16 04:27:12,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:12,164 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2023-12-16 04:27:12,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 04:27:12,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:12,175 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:12,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 04:27:12,176 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:12,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:12,176 INFO L85 PathProgramCache]: Analyzing trace with hash -906502019, now seen corresponding path program 1 times [2023-12-16 04:27:12,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:12,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164658283] [2023-12-16 04:27:12,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:12,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,759 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:12,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:12,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164658283] [2023-12-16 04:27:12,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164658283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:12,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:12,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:27:12,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608905744] [2023-12-16 04:27:12,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:12,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:27:12,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:12,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:27:12,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:12,762 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:13,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:13,059 INFO L93 Difference]: Finished difference Result 311 states and 449 transitions. [2023-12-16 04:27:13,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:27:13,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-16 04:27:13,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:13,063 INFO L225 Difference]: With dead ends: 311 [2023-12-16 04:27:13,063 INFO L226 Difference]: Without dead ends: 203 [2023-12-16 04:27:13,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:27:13,070 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 408 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:13,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 464 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:27:13,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-16 04:27:13,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 111. [2023-12-16 04:27:13,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 89 states have internal predecessors, (119), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:27:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2023-12-16 04:27:13,089 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 150 [2023-12-16 04:27:13,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:13,089 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2023-12-16 04:27:13,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2023-12-16 04:27:13,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 04:27:13,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:13,091 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:13,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 04:27:13,091 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:13,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:13,092 INFO L85 PathProgramCache]: Analyzing trace with hash -576930377, now seen corresponding path program 1 times [2023-12-16 04:27:13,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:13,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351826579] [2023-12-16 04:27:13,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:13,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,840 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:13,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:13,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351826579] [2023-12-16 04:27:13,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351826579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:13,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:13,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 04:27:13,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017767209] [2023-12-16 04:27:13,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:13,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:27:13,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:13,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:27:13,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:27:13,843 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:13,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:13,995 INFO L93 Difference]: Finished difference Result 245 states and 349 transitions. [2023-12-16 04:27:13,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:27:13,996 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 151 [2023-12-16 04:27:13,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:13,997 INFO L225 Difference]: With dead ends: 245 [2023-12-16 04:27:13,997 INFO L226 Difference]: Without dead ends: 135 [2023-12-16 04:27:13,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:27:13,998 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 199 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:13,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 719 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:13,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-12-16 04:27:14,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 118. [2023-12-16 04:27:14,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 95 states have (on average 1.3157894736842106) internal successors, (125), 95 states have internal predecessors, (125), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:27:14,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 165 transitions. [2023-12-16 04:27:14,015 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 165 transitions. Word has length 151 [2023-12-16 04:27:14,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:14,016 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 165 transitions. [2023-12-16 04:27:14,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:14,016 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 165 transitions. [2023-12-16 04:27:14,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 04:27:14,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:14,018 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:14,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 04:27:14,018 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:14,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:14,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1156097376, now seen corresponding path program 1 times [2023-12-16 04:27:14,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:14,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589835975] [2023-12-16 04:27:14,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:14,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 04:27:14,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:14,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589835975] [2023-12-16 04:27:14,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589835975] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:27:14,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691526897] [2023-12-16 04:27:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:14,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:14,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:14,712 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 04:27:14,730 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 04:27:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-16 04:27:14,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:15,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 59 [2023-12-16 04:27:15,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2023-12-16 04:27:15,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2023-12-16 04:27:15,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 53 [2023-12-16 04:27:15,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2023-12-16 04:27:15,654 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 04:27:15,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:27:15,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2023-12-16 04:27:15,864 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:27:15,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2023-12-16 04:27:15,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-16 04:27:16,032 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:16,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691526897] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:27:16,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:27:16,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 14] total 27 [2023-12-16 04:27:16,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199685580] [2023-12-16 04:27:16,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:16,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:27:16,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:16,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:27:16,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2023-12-16 04:27:16,034 INFO L87 Difference]: Start difference. First operand 118 states and 165 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:16,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:16,533 INFO L93 Difference]: Finished difference Result 376 states and 527 transitions. [2023-12-16 04:27:16,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:27:16,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2023-12-16 04:27:16,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:16,535 INFO L225 Difference]: With dead ends: 376 [2023-12-16 04:27:16,535 INFO L226 Difference]: Without dead ends: 259 [2023-12-16 04:27:16,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 324 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=1070, Unknown=0, NotChecked=0, Total=1190 [2023-12-16 04:27:16,537 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 272 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:16,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 1356 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:27:16,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-12-16 04:27:16,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 167. [2023-12-16 04:27:16,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 141 states have (on average 1.3333333333333333) internal successors, (188), 142 states have internal predecessors, (188), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 04:27:16,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 232 transitions. [2023-12-16 04:27:16,548 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 232 transitions. Word has length 152 [2023-12-16 04:27:16,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:16,549 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 232 transitions. [2023-12-16 04:27:16,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:16,549 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 232 transitions. [2023-12-16 04:27:16,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 04:27:16,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:16,551 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:16,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:16,759 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,SelfDestructingSolverStorable5 [2023-12-16 04:27:16,760 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:16,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:16,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1742903390, now seen corresponding path program 1 times [2023-12-16 04:27:16,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:16,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239371839] [2023-12-16 04:27:16,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:16,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,177 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:17,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:17,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239371839] [2023-12-16 04:27:17,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239371839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:17,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:17,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:27:17,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142724857] [2023-12-16 04:27:17,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:17,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:27:17,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:17,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:27:17,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:17,180 INFO L87 Difference]: Start difference. First operand 167 states and 232 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:17,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:17,328 INFO L93 Difference]: Finished difference Result 404 states and 560 transitions. [2023-12-16 04:27:17,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:27:17,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2023-12-16 04:27:17,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:17,331 INFO L225 Difference]: With dead ends: 404 [2023-12-16 04:27:17,331 INFO L226 Difference]: Without dead ends: 238 [2023-12-16 04:27:17,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:27:17,332 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 119 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:17,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 956 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:17,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-16 04:27:17,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 164. [2023-12-16 04:27:17,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 138 states have (on average 1.326086956521739) internal successors, (183), 139 states have internal predecessors, (183), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 04:27:17,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 227 transitions. [2023-12-16 04:27:17,343 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 227 transitions. Word has length 152 [2023-12-16 04:27:17,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:17,344 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 227 transitions. [2023-12-16 04:27:17,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:17,344 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 227 transitions. [2023-12-16 04:27:17,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 04:27:17,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:17,346 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:17,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 04:27:17,346 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:17,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:17,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1550522018, now seen corresponding path program 1 times [2023-12-16 04:27:17,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:17,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029780159] [2023-12-16 04:27:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:17,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,717 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:17,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:17,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029780159] [2023-12-16 04:27:17,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029780159] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:17,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:17,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:27:17,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154334232] [2023-12-16 04:27:17,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:17,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:27:17,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:17,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:27:17,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:17,719 INFO L87 Difference]: Start difference. First operand 164 states and 227 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:17,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:17,856 INFO L93 Difference]: Finished difference Result 400 states and 553 transitions. [2023-12-16 04:27:17,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:27:17,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2023-12-16 04:27:17,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:17,858 INFO L225 Difference]: With dead ends: 400 [2023-12-16 04:27:17,858 INFO L226 Difference]: Without dead ends: 237 [2023-12-16 04:27:17,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:27:17,859 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 134 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:17,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 806 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:17,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-12-16 04:27:17,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 164. [2023-12-16 04:27:17,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 138 states have (on average 1.318840579710145) internal successors, (182), 139 states have internal predecessors, (182), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 04:27:17,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 226 transitions. [2023-12-16 04:27:17,870 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 226 transitions. Word has length 152 [2023-12-16 04:27:17,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:17,871 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 226 transitions. [2023-12-16 04:27:17,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:17,871 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 226 transitions. [2023-12-16 04:27:17,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 04:27:17,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:17,873 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:17,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 04:27:17,873 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:17,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:17,873 INFO L85 PathProgramCache]: Analyzing trace with hash 963716004, now seen corresponding path program 1 times [2023-12-16 04:27:17,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:17,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586192953] [2023-12-16 04:27:17,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:17,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,455 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 04:27:18,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:18,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586192953] [2023-12-16 04:27:18,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586192953] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:27:18,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203997591] [2023-12-16 04:27:18,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:18,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:18,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:18,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:18,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 04:27:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-16 04:27:18,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:18,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-16 04:27:18,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 51 [2023-12-16 04:27:18,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-12-16 04:27:18,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2023-12-16 04:27:18,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2023-12-16 04:27:19,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2023-12-16 04:27:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 04:27:19,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:27:19,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2023-12-16 04:27:19,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:27:19,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2023-12-16 04:27:19,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 42 [2023-12-16 04:27:19,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-16 04:27:19,393 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:19,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203997591] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:27:19,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:27:19,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 12] total 22 [2023-12-16 04:27:19,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799940430] [2023-12-16 04:27:19,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:19,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:27:19,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:19,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:27:19,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2023-12-16 04:27:19,396 INFO L87 Difference]: Start difference. First operand 164 states and 226 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:19,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:19,858 INFO L93 Difference]: Finished difference Result 443 states and 610 transitions. [2023-12-16 04:27:19,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 04:27:19,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2023-12-16 04:27:19,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:19,861 INFO L225 Difference]: With dead ends: 443 [2023-12-16 04:27:19,861 INFO L226 Difference]: Without dead ends: 280 [2023-12-16 04:27:19,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 329 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=716, Unknown=0, NotChecked=0, Total=812 [2023-12-16 04:27:19,863 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 214 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:19,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1341 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:19,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-12-16 04:27:19,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 215. [2023-12-16 04:27:19,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 181 states have (on average 1.3149171270718232) internal successors, (238), 183 states have internal predecessors, (238), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 04:27:19,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 294 transitions. [2023-12-16 04:27:19,885 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 294 transitions. Word has length 152 [2023-12-16 04:27:19,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:19,888 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 294 transitions. [2023-12-16 04:27:19,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:19,888 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 294 transitions. [2023-12-16 04:27:19,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:27:19,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:19,891 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:19,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:20,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-16 04:27:20,098 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:20,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:20,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1738577047, now seen corresponding path program 1 times [2023-12-16 04:27:20,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:20,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173784651] [2023-12-16 04:27:20,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:20,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,299 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:20,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:20,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173784651] [2023-12-16 04:27:20,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173784651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:20,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:20,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:27:20,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107746553] [2023-12-16 04:27:20,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:20,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:27:20,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:27:20,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:20,302 INFO L87 Difference]: Start difference. First operand 215 states and 294 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:20,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:20,417 INFO L93 Difference]: Finished difference Result 697 states and 970 transitions. [2023-12-16 04:27:20,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:27:20,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-16 04:27:20,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:20,422 INFO L225 Difference]: With dead ends: 697 [2023-12-16 04:27:20,422 INFO L226 Difference]: Without dead ends: 483 [2023-12-16 04:27:20,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:27:20,423 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 180 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:20,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 703 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:20,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-12-16 04:27:20,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 260. [2023-12-16 04:27:20,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 226 states have (on average 1.3185840707964602) internal successors, (298), 228 states have internal predecessors, (298), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 04:27:20,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 354 transitions. [2023-12-16 04:27:20,450 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 354 transitions. Word has length 153 [2023-12-16 04:27:20,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:20,450 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 354 transitions. [2023-12-16 04:27:20,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:20,450 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 354 transitions. [2023-12-16 04:27:20,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:27:20,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:20,453 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:20,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 04:27:20,453 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:20,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:20,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1545272999, now seen corresponding path program 1 times [2023-12-16 04:27:20,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:20,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557839952] [2023-12-16 04:27:20,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:20,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:20,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:20,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557839952] [2023-12-16 04:27:20,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557839952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:20,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:20,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:20,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065259882] [2023-12-16 04:27:20,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:20,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:20,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:20,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:20,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:20,669 INFO L87 Difference]: Start difference. First operand 260 states and 354 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:20,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:20,774 INFO L93 Difference]: Finished difference Result 763 states and 1044 transitions. [2023-12-16 04:27:20,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:27:20,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-16 04:27:20,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:20,777 INFO L225 Difference]: With dead ends: 763 [2023-12-16 04:27:20,777 INFO L226 Difference]: Without dead ends: 504 [2023-12-16 04:27:20,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:20,778 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 126 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:20,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 558 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:20,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2023-12-16 04:27:20,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 295. [2023-12-16 04:27:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 261 states have (on average 1.314176245210728) internal successors, (343), 263 states have internal predecessors, (343), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 04:27:20,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 399 transitions. [2023-12-16 04:27:20,798 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 399 transitions. Word has length 153 [2023-12-16 04:27:20,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:20,798 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 399 transitions. [2023-12-16 04:27:20,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:20,799 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 399 transitions. [2023-12-16 04:27:20,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:27:20,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:20,800 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:20,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 04:27:20,801 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:20,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:20,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1036977173, now seen corresponding path program 1 times [2023-12-16 04:27:20,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:20,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685390590] [2023-12-16 04:27:20,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:20,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:20,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,022 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:21,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:21,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685390590] [2023-12-16 04:27:21,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685390590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:21,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:21,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:21,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81575291] [2023-12-16 04:27:21,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:21,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:21,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:21,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:21,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:21,024 INFO L87 Difference]: Start difference. First operand 295 states and 399 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:21,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:21,135 INFO L93 Difference]: Finished difference Result 673 states and 907 transitions. [2023-12-16 04:27:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:27:21,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-16 04:27:21,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:21,138 INFO L225 Difference]: With dead ends: 673 [2023-12-16 04:27:21,138 INFO L226 Difference]: Without dead ends: 379 [2023-12-16 04:27:21,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:21,139 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 113 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:21,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 655 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:21,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-12-16 04:27:21,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 258. [2023-12-16 04:27:21,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 226 states have (on average 1.2920353982300885) internal successors, (292), 227 states have internal predecessors, (292), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 04:27:21,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 344 transitions. [2023-12-16 04:27:21,161 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 344 transitions. Word has length 153 [2023-12-16 04:27:21,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:21,162 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 344 transitions. [2023-12-16 04:27:21,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:21,162 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 344 transitions. [2023-12-16 04:27:21,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:27:21,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:21,165 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:21,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 04:27:21,165 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:21,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:21,165 INFO L85 PathProgramCache]: Analyzing trace with hash -2048094423, now seen corresponding path program 1 times [2023-12-16 04:27:21,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:21,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844652453] [2023-12-16 04:27:21,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:21,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:21,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:21,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844652453] [2023-12-16 04:27:21,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844652453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:21,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:21,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:27:21,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059934615] [2023-12-16 04:27:21,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:21,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:27:21,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:21,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:27:21,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:21,337 INFO L87 Difference]: Start difference. First operand 258 states and 344 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:21,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:21,433 INFO L93 Difference]: Finished difference Result 636 states and 854 transitions. [2023-12-16 04:27:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:27:21,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-16 04:27:21,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:21,436 INFO L225 Difference]: With dead ends: 636 [2023-12-16 04:27:21,436 INFO L226 Difference]: Without dead ends: 379 [2023-12-16 04:27:21,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:27:21,437 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 130 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:21,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 949 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:21,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-12-16 04:27:21,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 295. [2023-12-16 04:27:21,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 263 states have (on average 1.2927756653992395) internal successors, (340), 264 states have internal predecessors, (340), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 04:27:21,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 392 transitions. [2023-12-16 04:27:21,457 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 392 transitions. Word has length 153 [2023-12-16 04:27:21,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:21,457 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 392 transitions. [2023-12-16 04:27:21,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:21,457 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 392 transitions. [2023-12-16 04:27:21,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 04:27:21,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:21,460 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:21,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 04:27:21,460 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:21,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:21,460 INFO L85 PathProgramCache]: Analyzing trace with hash -980410223, now seen corresponding path program 1 times [2023-12-16 04:27:21,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:21,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118862319] [2023-12-16 04:27:21,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:21,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:22,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:22,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118862319] [2023-12-16 04:27:22,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118862319] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:22,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:22,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 04:27:22,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788491751] [2023-12-16 04:27:22,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:22,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 04:27:22,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:22,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 04:27:22,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:27:22,108 INFO L87 Difference]: Start difference. First operand 295 states and 392 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:22,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:22,314 INFO L93 Difference]: Finished difference Result 665 states and 893 transitions. [2023-12-16 04:27:22,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 04:27:22,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-16 04:27:22,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:22,316 INFO L225 Difference]: With dead ends: 665 [2023-12-16 04:27:22,316 INFO L226 Difference]: Without dead ends: 371 [2023-12-16 04:27:22,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-12-16 04:27:22,318 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 244 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:22,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 824 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:22,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-12-16 04:27:22,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 297. [2023-12-16 04:27:22,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 265 states have (on average 1.290566037735849) internal successors, (342), 266 states have internal predecessors, (342), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 04:27:22,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 394 transitions. [2023-12-16 04:27:22,335 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 394 transitions. Word has length 154 [2023-12-16 04:27:22,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:22,336 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 394 transitions. [2023-12-16 04:27:22,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:22,336 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 394 transitions. [2023-12-16 04:27:22,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:27:22,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:22,338 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:22,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 04:27:22,338 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:22,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:22,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1554002775, now seen corresponding path program 1 times [2023-12-16 04:27:22,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:22,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103817370] [2023-12-16 04:27:22,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:22,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,612 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:22,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:22,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103817370] [2023-12-16 04:27:22,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103817370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:22,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:22,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:22,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508225187] [2023-12-16 04:27:22,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:22,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:22,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:22,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:22,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:22,614 INFO L87 Difference]: Start difference. First operand 297 states and 394 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:22,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:22,683 INFO L93 Difference]: Finished difference Result 816 states and 1072 transitions. [2023-12-16 04:27:22,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:22,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2023-12-16 04:27:22,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:22,686 INFO L225 Difference]: With dead ends: 816 [2023-12-16 04:27:22,686 INFO L226 Difference]: Without dead ends: 520 [2023-12-16 04:27:22,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:22,687 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 98 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:22,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 572 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:22,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-12-16 04:27:22,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 517. [2023-12-16 04:27:22,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 458 states have (on average 1.2641921397379912) internal successors, (579), 461 states have internal predecessors, (579), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-16 04:27:22,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 675 transitions. [2023-12-16 04:27:22,719 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 675 transitions. Word has length 155 [2023-12-16 04:27:22,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:22,719 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 675 transitions. [2023-12-16 04:27:22,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:22,719 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 675 transitions. [2023-12-16 04:27:22,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:27:22,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:22,722 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:22,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 04:27:22,723 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:22,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:22,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1947029785, now seen corresponding path program 1 times [2023-12-16 04:27:22,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:22,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948894749] [2023-12-16 04:27:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:22,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:23,573 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:23,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:23,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948894749] [2023-12-16 04:27:23,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948894749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:23,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:23,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:27:23,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349303255] [2023-12-16 04:27:23,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:23,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:27:23,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:23,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:27:23,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:27:23,575 INFO L87 Difference]: Start difference. First operand 517 states and 675 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:24,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:24,042 INFO L93 Difference]: Finished difference Result 1331 states and 1725 transitions. [2023-12-16 04:27:24,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 04:27:24,043 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2023-12-16 04:27:24,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:24,046 INFO L225 Difference]: With dead ends: 1331 [2023-12-16 04:27:24,046 INFO L226 Difference]: Without dead ends: 815 [2023-12-16 04:27:24,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2023-12-16 04:27:24,048 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 384 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:24,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1148 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:27:24,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2023-12-16 04:27:24,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 744. [2023-12-16 04:27:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 659 states have (on average 1.2488619119878603) internal successors, (823), 664 states have internal predecessors, (823), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-16 04:27:24,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 959 transitions. [2023-12-16 04:27:24,096 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 959 transitions. Word has length 155 [2023-12-16 04:27:24,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:24,097 INFO L495 AbstractCegarLoop]: Abstraction has 744 states and 959 transitions. [2023-12-16 04:27:24,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:24,097 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 959 transitions. [2023-12-16 04:27:24,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:27:24,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:24,099 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:24,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 04:27:24,100 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:24,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:24,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1705467200, now seen corresponding path program 1 times [2023-12-16 04:27:24,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:24,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412034563] [2023-12-16 04:27:24,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:24,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,339 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:24,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:24,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412034563] [2023-12-16 04:27:24,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412034563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:24,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:24,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:24,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461703440] [2023-12-16 04:27:24,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:24,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:24,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:24,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:24,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:24,341 INFO L87 Difference]: Start difference. First operand 744 states and 959 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:24,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:24,426 INFO L93 Difference]: Finished difference Result 1550 states and 2005 transitions. [2023-12-16 04:27:24,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:27:24,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2023-12-16 04:27:24,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:24,430 INFO L225 Difference]: With dead ends: 1550 [2023-12-16 04:27:24,430 INFO L226 Difference]: Without dead ends: 807 [2023-12-16 04:27:24,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:24,433 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 78 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:24,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 617 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:24,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2023-12-16 04:27:24,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 736. [2023-12-16 04:27:24,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 651 states have (on average 1.2380952380952381) internal successors, (806), 656 states have internal predecessors, (806), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-16 04:27:24,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 942 transitions. [2023-12-16 04:27:24,481 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 942 transitions. Word has length 155 [2023-12-16 04:27:24,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:24,481 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 942 transitions. [2023-12-16 04:27:24,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:24,481 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 942 transitions. [2023-12-16 04:27:24,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:27:24,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:24,483 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:24,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 04:27:24,484 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:24,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:24,484 INFO L85 PathProgramCache]: Analyzing trace with hash -382757696, now seen corresponding path program 1 times [2023-12-16 04:27:24,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:24,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510453829] [2023-12-16 04:27:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:24,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,720 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:24,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:24,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510453829] [2023-12-16 04:27:24,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510453829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:24,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:24,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:24,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614945609] [2023-12-16 04:27:24,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:24,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:24,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:24,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:24,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:24,722 INFO L87 Difference]: Start difference. First operand 736 states and 942 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:24,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:24,805 INFO L93 Difference]: Finished difference Result 1492 states and 1911 transitions. [2023-12-16 04:27:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:24,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2023-12-16 04:27:24,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:24,809 INFO L225 Difference]: With dead ends: 1492 [2023-12-16 04:27:24,810 INFO L226 Difference]: Without dead ends: 757 [2023-12-16 04:27:24,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:24,813 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 81 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:24,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 660 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:24,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-12-16 04:27:24,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 732. [2023-12-16 04:27:24,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 647 states have (on average 1.23338485316847) internal successors, (798), 652 states have internal predecessors, (798), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-16 04:27:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 934 transitions. [2023-12-16 04:27:24,859 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 934 transitions. Word has length 155 [2023-12-16 04:27:24,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:24,860 INFO L495 AbstractCegarLoop]: Abstraction has 732 states and 934 transitions. [2023-12-16 04:27:24,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:24,860 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 934 transitions. [2023-12-16 04:27:24,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:27:24,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:24,862 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:24,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 04:27:24,862 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:24,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:24,862 INFO L85 PathProgramCache]: Analyzing trace with hash -534222121, now seen corresponding path program 1 times [2023-12-16 04:27:24,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:24,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023985525] [2023-12-16 04:27:24,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:24,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,161 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:25,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:25,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023985525] [2023-12-16 04:27:25,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023985525] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:25,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:25,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:25,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217700789] [2023-12-16 04:27:25,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:25,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:25,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:25,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:25,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:25,165 INFO L87 Difference]: Start difference. First operand 732 states and 934 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:25,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:25,282 INFO L93 Difference]: Finished difference Result 1678 states and 2136 transitions. [2023-12-16 04:27:25,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:25,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2023-12-16 04:27:25,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:25,285 INFO L225 Difference]: With dead ends: 1678 [2023-12-16 04:27:25,286 INFO L226 Difference]: Without dead ends: 947 [2023-12-16 04:27:25,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:25,287 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 139 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:25,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 562 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:25,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2023-12-16 04:27:25,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 944. [2023-12-16 04:27:25,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 836 states have (on average 1.2284688995215312) internal successors, (1027), 843 states have internal predecessors, (1027), 86 states have call successors, (86), 21 states have call predecessors, (86), 21 states have return successors, (86), 79 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 04:27:25,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1199 transitions. [2023-12-16 04:27:25,344 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1199 transitions. Word has length 155 [2023-12-16 04:27:25,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:25,345 INFO L495 AbstractCegarLoop]: Abstraction has 944 states and 1199 transitions. [2023-12-16 04:27:25,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:25,345 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1199 transitions. [2023-12-16 04:27:25,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:27:25,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:25,347 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:25,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 04:27:25,347 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:25,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:25,347 INFO L85 PathProgramCache]: Analyzing trace with hash -927249131, now seen corresponding path program 1 times [2023-12-16 04:27:25,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:25,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568077936] [2023-12-16 04:27:25,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:25,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,150 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:26,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:26,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568077936] [2023-12-16 04:27:26,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568077936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:26,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:26,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:27:26,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145482787] [2023-12-16 04:27:26,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:26,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:27:26,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:26,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:27:26,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:27:26,152 INFO L87 Difference]: Start difference. First operand 944 states and 1199 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:26,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:26,655 INFO L93 Difference]: Finished difference Result 2092 states and 2655 transitions. [2023-12-16 04:27:26,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 04:27:26,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2023-12-16 04:27:26,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:26,661 INFO L225 Difference]: With dead ends: 2092 [2023-12-16 04:27:26,661 INFO L226 Difference]: Without dead ends: 1149 [2023-12-16 04:27:26,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2023-12-16 04:27:26,664 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 406 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:26,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 1626 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:27:26,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2023-12-16 04:27:26,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 922. [2023-12-16 04:27:26,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 838 states have (on average 1.224343675417661) internal successors, (1026), 843 states have internal predecessors, (1026), 66 states have call successors, (66), 17 states have call predecessors, (66), 17 states have return successors, (66), 61 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-16 04:27:26,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1158 transitions. [2023-12-16 04:27:26,758 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1158 transitions. Word has length 155 [2023-12-16 04:27:26,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:26,758 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1158 transitions. [2023-12-16 04:27:26,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:26,759 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1158 transitions. [2023-12-16 04:27:26,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:27:26,761 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:26,761 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:26,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 04:27:26,762 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:26,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:26,762 INFO L85 PathProgramCache]: Analyzing trace with hash -596261735, now seen corresponding path program 1 times [2023-12-16 04:27:26,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:26,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639385351] [2023-12-16 04:27:26,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:26,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,046 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:27,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:27,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639385351] [2023-12-16 04:27:27,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639385351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:27,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:27,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:27,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770084298] [2023-12-16 04:27:27,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:27,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:27,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:27,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:27,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:27,050 INFO L87 Difference]: Start difference. First operand 922 states and 1158 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:27,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:27,172 INFO L93 Difference]: Finished difference Result 1964 states and 2489 transitions. [2023-12-16 04:27:27,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:27:27,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2023-12-16 04:27:27,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:27,176 INFO L225 Difference]: With dead ends: 1964 [2023-12-16 04:27:27,176 INFO L226 Difference]: Without dead ends: 1043 [2023-12-16 04:27:27,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:27,179 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 138 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:27,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 953 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:27,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2023-12-16 04:27:27,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 883. [2023-12-16 04:27:27,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 799 states have (on average 1.2240300375469337) internal successors, (978), 804 states have internal predecessors, (978), 66 states have call successors, (66), 17 states have call predecessors, (66), 17 states have return successors, (66), 61 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-16 04:27:27,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1110 transitions. [2023-12-16 04:27:27,251 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1110 transitions. Word has length 155 [2023-12-16 04:27:27,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:27,251 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1110 transitions. [2023-12-16 04:27:27,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:27,251 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1110 transitions. [2023-12-16 04:27:27,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-16 04:27:27,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:27,253 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:27,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 04:27:27,254 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:27,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:27,254 INFO L85 PathProgramCache]: Analyzing trace with hash -991014282, now seen corresponding path program 1 times [2023-12-16 04:27:27,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:27,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25065887] [2023-12-16 04:27:27,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:27,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,432 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:27,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:27,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25065887] [2023-12-16 04:27:27,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25065887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:27,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:27,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:27:27,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038908306] [2023-12-16 04:27:27,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:27,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:27:27,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:27,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:27:27,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:27:27,434 INFO L87 Difference]: Start difference. First operand 883 states and 1110 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:27,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:27,589 INFO L93 Difference]: Finished difference Result 2513 states and 3160 transitions. [2023-12-16 04:27:27,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 04:27:27,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2023-12-16 04:27:27,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:27,595 INFO L225 Difference]: With dead ends: 2513 [2023-12-16 04:27:27,595 INFO L226 Difference]: Without dead ends: 1631 [2023-12-16 04:27:27,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:27,598 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 107 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:27,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 417 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:27,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2023-12-16 04:27:27,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1193. [2023-12-16 04:27:27,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1084 states have (on average 1.2306273062730628) internal successors, (1334), 1089 states have internal predecessors, (1334), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 04:27:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1506 transitions. [2023-12-16 04:27:27,693 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1506 transitions. Word has length 156 [2023-12-16 04:27:27,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:27,694 INFO L495 AbstractCegarLoop]: Abstraction has 1193 states and 1506 transitions. [2023-12-16 04:27:27,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1506 transitions. [2023-12-16 04:27:27,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-16 04:27:27,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:27,696 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:27,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 04:27:27,696 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:27,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:27,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1577820296, now seen corresponding path program 1 times [2023-12-16 04:27:27,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:27,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121001419] [2023-12-16 04:27:27,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:27,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:28,350 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:28,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:28,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121001419] [2023-12-16 04:27:28,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121001419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:28,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:28,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:27:28,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844473284] [2023-12-16 04:27:28,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:28,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:27:28,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:28,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:27:28,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:27:28,352 INFO L87 Difference]: Start difference. First operand 1193 states and 1506 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 04:27:29,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:29,079 INFO L93 Difference]: Finished difference Result 3605 states and 4547 transitions. [2023-12-16 04:27:29,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 04:27:29,080 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 156 [2023-12-16 04:27:29,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:29,089 INFO L225 Difference]: With dead ends: 3605 [2023-12-16 04:27:29,090 INFO L226 Difference]: Without dead ends: 2713 [2023-12-16 04:27:29,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:27:29,092 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 511 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:29,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 1123 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:27:29,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2023-12-16 04:27:29,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 1423. [2023-12-16 04:27:29,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1314 states have (on average 1.2328767123287672) internal successors, (1620), 1319 states have internal predecessors, (1620), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 04:27:29,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1792 transitions. [2023-12-16 04:27:29,195 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1792 transitions. Word has length 156 [2023-12-16 04:27:29,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:29,196 INFO L495 AbstractCegarLoop]: Abstraction has 1423 states and 1792 transitions. [2023-12-16 04:27:29,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 04:27:29,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1792 transitions. [2023-12-16 04:27:29,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:27:29,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:29,198 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:29,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 04:27:29,199 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:29,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:29,199 INFO L85 PathProgramCache]: Analyzing trace with hash -124374938, now seen corresponding path program 1 times [2023-12-16 04:27:29,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:29,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375621685] [2023-12-16 04:27:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:29,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:29,510 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:29,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:29,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375621685] [2023-12-16 04:27:29,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375621685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:29,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:29,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:27:29,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010637029] [2023-12-16 04:27:29,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:29,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:27:29,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:29,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:27:29,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:29,512 INFO L87 Difference]: Start difference. First operand 1423 states and 1792 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:29,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:29,712 INFO L93 Difference]: Finished difference Result 2735 states and 3459 transitions. [2023-12-16 04:27:29,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:27:29,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:27:29,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:29,718 INFO L225 Difference]: With dead ends: 2735 [2023-12-16 04:27:29,718 INFO L226 Difference]: Without dead ends: 1605 [2023-12-16 04:27:29,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:27:29,721 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 173 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:29,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 967 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:29,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2023-12-16 04:27:29,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1423. [2023-12-16 04:27:29,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1314 states have (on average 1.2207001522070016) internal successors, (1604), 1319 states have internal predecessors, (1604), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 04:27:29,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1776 transitions. [2023-12-16 04:27:29,810 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1776 transitions. Word has length 157 [2023-12-16 04:27:29,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:29,810 INFO L495 AbstractCegarLoop]: Abstraction has 1423 states and 1776 transitions. [2023-12-16 04:27:29,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:29,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1776 transitions. [2023-12-16 04:27:29,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:27:29,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:29,813 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:29,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 04:27:29,814 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:29,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:29,815 INFO L85 PathProgramCache]: Analyzing trace with hash -537483444, now seen corresponding path program 1 times [2023-12-16 04:27:29,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:29,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709241064] [2023-12-16 04:27:29,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:29,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:30,934 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:30,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:30,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709241064] [2023-12-16 04:27:30,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709241064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:30,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:30,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-16 04:27:30,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005811752] [2023-12-16 04:27:30,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:30,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 04:27:30,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:30,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 04:27:30,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-12-16 04:27:30,936 INFO L87 Difference]: Start difference. First operand 1423 states and 1776 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:31,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:31,807 INFO L93 Difference]: Finished difference Result 4207 states and 5234 transitions. [2023-12-16 04:27:31,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-16 04:27:31,807 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:27:31,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:31,817 INFO L225 Difference]: With dead ends: 4207 [2023-12-16 04:27:31,817 INFO L226 Difference]: Without dead ends: 3095 [2023-12-16 04:27:31,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=256, Invalid=800, Unknown=0, NotChecked=0, Total=1056 [2023-12-16 04:27:31,823 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 673 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:31,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1438 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:27:31,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2023-12-16 04:27:31,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 1910. [2023-12-16 04:27:31,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1718 states have (on average 1.2054714784633294) internal successors, (2071), 1728 states have internal predecessors, (2071), 152 states have call successors, (152), 39 states have call predecessors, (152), 39 states have return successors, (152), 142 states have call predecessors, (152), 152 states have call successors, (152) [2023-12-16 04:27:31,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2375 transitions. [2023-12-16 04:27:31,988 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2375 transitions. Word has length 157 [2023-12-16 04:27:31,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:31,989 INFO L495 AbstractCegarLoop]: Abstraction has 1910 states and 2375 transitions. [2023-12-16 04:27:31,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2375 transitions. [2023-12-16 04:27:31,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:27:31,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:31,992 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:31,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 04:27:31,992 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:31,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:31,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1237523918, now seen corresponding path program 1 times [2023-12-16 04:27:31,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:31,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958816265] [2023-12-16 04:27:31,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:31,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,207 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:32,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:32,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958816265] [2023-12-16 04:27:32,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958816265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:32,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:32,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:27:32,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469379349] [2023-12-16 04:27:32,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:32,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:27:32,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:32,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:27:32,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:32,209 INFO L87 Difference]: Start difference. First operand 1910 states and 2375 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:32,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:32,472 INFO L93 Difference]: Finished difference Result 4667 states and 5774 transitions. [2023-12-16 04:27:32,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:27:32,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:27:32,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:32,483 INFO L225 Difference]: With dead ends: 4667 [2023-12-16 04:27:32,483 INFO L226 Difference]: Without dead ends: 3068 [2023-12-16 04:27:32,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:27:32,487 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 81 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:32,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 621 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:32,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2023-12-16 04:27:32,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2832. [2023-12-16 04:27:32,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2832 states, 2640 states have (on average 1.1981060606060605) internal successors, (3163), 2650 states have internal predecessors, (3163), 152 states have call successors, (152), 39 states have call predecessors, (152), 39 states have return successors, (152), 142 states have call predecessors, (152), 152 states have call successors, (152) [2023-12-16 04:27:32,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3467 transitions. [2023-12-16 04:27:32,670 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3467 transitions. Word has length 157 [2023-12-16 04:27:32,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:32,670 INFO L495 AbstractCegarLoop]: Abstraction has 2832 states and 3467 transitions. [2023-12-16 04:27:32,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:32,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3467 transitions. [2023-12-16 04:27:32,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:27:32,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:32,677 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:32,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 04:27:32,677 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:32,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:32,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1026875038, now seen corresponding path program 1 times [2023-12-16 04:27:32,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:32,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785524755] [2023-12-16 04:27:32,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:32,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:32,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,020 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:33,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:33,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785524755] [2023-12-16 04:27:33,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785524755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:33,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:33,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:27:33,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188045997] [2023-12-16 04:27:33,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:33,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:27:33,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:33,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:27:33,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:33,023 INFO L87 Difference]: Start difference. First operand 2832 states and 3467 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:33,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:33,414 INFO L93 Difference]: Finished difference Result 5622 states and 6907 transitions. [2023-12-16 04:27:33,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:27:33,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:27:33,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:33,424 INFO L225 Difference]: With dead ends: 5622 [2023-12-16 04:27:33,424 INFO L226 Difference]: Without dead ends: 3195 [2023-12-16 04:27:33,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:33,429 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 319 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:33,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 739 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:27:33,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2023-12-16 04:27:33,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 2947. [2023-12-16 04:27:33,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2947 states, 2719 states have (on average 1.1585141596175064) internal successors, (3150), 2731 states have internal predecessors, (3150), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-16 04:27:33,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2947 states to 2947 states and 3510 transitions. [2023-12-16 04:27:33,612 INFO L78 Accepts]: Start accepts. Automaton has 2947 states and 3510 transitions. Word has length 157 [2023-12-16 04:27:33,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:33,612 INFO L495 AbstractCegarLoop]: Abstraction has 2947 states and 3510 transitions. [2023-12-16 04:27:33,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:33,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2947 states and 3510 transitions. [2023-12-16 04:27:33,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:27:33,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:33,616 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:33,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 04:27:33,617 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:33,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:33,617 INFO L85 PathProgramCache]: Analyzing trace with hash -396934834, now seen corresponding path program 1 times [2023-12-16 04:27:33,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:33,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034513227] [2023-12-16 04:27:33,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:33,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:33,847 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:33,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:33,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034513227] [2023-12-16 04:27:33,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034513227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:33,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:33,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:27:33,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087065341] [2023-12-16 04:27:33,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:33,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:27:33,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:33,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:27:33,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:33,849 INFO L87 Difference]: Start difference. First operand 2947 states and 3510 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:34,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:34,136 INFO L93 Difference]: Finished difference Result 5029 states and 5995 transitions. [2023-12-16 04:27:34,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:27:34,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:27:34,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:34,162 INFO L225 Difference]: With dead ends: 5029 [2023-12-16 04:27:34,162 INFO L226 Difference]: Without dead ends: 3131 [2023-12-16 04:27:34,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:27:34,166 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 74 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:34,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 823 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:34,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2023-12-16 04:27:34,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 2947. [2023-12-16 04:27:34,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2947 states, 2719 states have (on average 1.1559396837072453) internal successors, (3143), 2731 states have internal predecessors, (3143), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-16 04:27:34,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2947 states to 2947 states and 3503 transitions. [2023-12-16 04:27:34,378 INFO L78 Accepts]: Start accepts. Automaton has 2947 states and 3503 transitions. Word has length 157 [2023-12-16 04:27:34,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:34,378 INFO L495 AbstractCegarLoop]: Abstraction has 2947 states and 3503 transitions. [2023-12-16 04:27:34,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:34,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2947 states and 3503 transitions. [2023-12-16 04:27:34,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:27:34,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:34,383 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:34,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-16 04:27:34,384 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:34,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:34,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1378072528, now seen corresponding path program 1 times [2023-12-16 04:27:34,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:34,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111282988] [2023-12-16 04:27:34,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:34,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:35,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:35,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111282988] [2023-12-16 04:27:35,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111282988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:35,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:35,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 04:27:35,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911607946] [2023-12-16 04:27:35,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:35,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 04:27:35,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:35,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 04:27:35,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:27:35,177 INFO L87 Difference]: Start difference. First operand 2947 states and 3503 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:35,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:35,916 INFO L93 Difference]: Finished difference Result 5207 states and 6209 transitions. [2023-12-16 04:27:35,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 04:27:35,917 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:27:35,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:35,924 INFO L225 Difference]: With dead ends: 5207 [2023-12-16 04:27:35,925 INFO L226 Difference]: Without dead ends: 3309 [2023-12-16 04:27:35,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-16 04:27:35,929 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 141 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:35,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1673 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:27:35,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3309 states. [2023-12-16 04:27:36,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3309 to 3271. [2023-12-16 04:27:36,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 2944 states have (on average 1.153532608695652) internal successors, (3396), 2963 states have internal predecessors, (3396), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2023-12-16 04:27:36,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 3912 transitions. [2023-12-16 04:27:36,197 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 3912 transitions. Word has length 157 [2023-12-16 04:27:36,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:36,197 INFO L495 AbstractCegarLoop]: Abstraction has 3271 states and 3912 transitions. [2023-12-16 04:27:36,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:36,198 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 3912 transitions. [2023-12-16 04:27:36,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:27:36,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:36,202 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:36,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-16 04:27:36,202 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:36,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:36,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1803870151, now seen corresponding path program 1 times [2023-12-16 04:27:36,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:36,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662714275] [2023-12-16 04:27:36,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:36,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:36,797 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:36,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:36,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662714275] [2023-12-16 04:27:36,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662714275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:36,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:36,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:27:36,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958670392] [2023-12-16 04:27:36,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:36,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:27:36,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:36,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:27:36,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:27:36,800 INFO L87 Difference]: Start difference. First operand 3271 states and 3912 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:37,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:37,298 INFO L93 Difference]: Finished difference Result 6039 states and 7225 transitions. [2023-12-16 04:27:37,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:27:37,299 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:27:37,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:37,307 INFO L225 Difference]: With dead ends: 6039 [2023-12-16 04:27:37,307 INFO L226 Difference]: Without dead ends: 3817 [2023-12-16 04:27:37,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2023-12-16 04:27:37,312 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 303 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:37,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 936 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:37,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3817 states. [2023-12-16 04:27:37,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3817 to 3185. [2023-12-16 04:27:37,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 2858 states have (on average 1.150104968509447) internal successors, (3287), 2877 states have internal predecessors, (3287), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2023-12-16 04:27:37,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 3803 transitions. [2023-12-16 04:27:37,694 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 3803 transitions. Word has length 157 [2023-12-16 04:27:37,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:37,695 INFO L495 AbstractCegarLoop]: Abstraction has 3185 states and 3803 transitions. [2023-12-16 04:27:37,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:37,695 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 3803 transitions. [2023-12-16 04:27:37,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:27:37,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:37,699 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:37,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-16 04:27:37,699 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:37,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:37,700 INFO L85 PathProgramCache]: Analyzing trace with hash 919333644, now seen corresponding path program 1 times [2023-12-16 04:27:37,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:37,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10495671] [2023-12-16 04:27:37,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:37,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:39,392 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:39,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:39,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10495671] [2023-12-16 04:27:39,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10495671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:39,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:39,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-16 04:27:39,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820508548] [2023-12-16 04:27:39,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:39,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 04:27:39,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:39,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 04:27:39,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-12-16 04:27:39,394 INFO L87 Difference]: Start difference. First operand 3185 states and 3803 transitions. Second operand has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 04:27:40,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:40,868 INFO L93 Difference]: Finished difference Result 7704 states and 9181 transitions. [2023-12-16 04:27:40,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-16 04:27:40,868 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 157 [2023-12-16 04:27:40,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:40,878 INFO L225 Difference]: With dead ends: 7704 [2023-12-16 04:27:40,878 INFO L226 Difference]: Without dead ends: 5568 [2023-12-16 04:27:40,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=291, Invalid=969, Unknown=0, NotChecked=0, Total=1260 [2023-12-16 04:27:40,883 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 1054 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:40,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1555 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:27:40,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5568 states. [2023-12-16 04:27:41,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5568 to 3292. [2023-12-16 04:27:41,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 2965 states have (on average 1.1500843170320405) internal successors, (3410), 2984 states have internal predecessors, (3410), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2023-12-16 04:27:41,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 3926 transitions. [2023-12-16 04:27:41,161 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 3926 transitions. Word has length 157 [2023-12-16 04:27:41,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:41,161 INFO L495 AbstractCegarLoop]: Abstraction has 3292 states and 3926 transitions. [2023-12-16 04:27:41,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 04:27:41,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 3926 transitions. [2023-12-16 04:27:41,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-16 04:27:41,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:41,165 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:41,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-16 04:27:41,166 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:41,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:41,166 INFO L85 PathProgramCache]: Analyzing trace with hash -302479244, now seen corresponding path program 1 times [2023-12-16 04:27:41,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:41,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988996815] [2023-12-16 04:27:41,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:41,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:41,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:41,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988996815] [2023-12-16 04:27:41,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988996815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:41,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:41,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:27:41,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194853780] [2023-12-16 04:27:41,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:41,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:27:41,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:41,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:27:41,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:41,309 INFO L87 Difference]: Start difference. First operand 3292 states and 3926 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:41,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:41,678 INFO L93 Difference]: Finished difference Result 6284 states and 7576 transitions. [2023-12-16 04:27:41,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:27:41,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2023-12-16 04:27:41,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:41,686 INFO L225 Difference]: With dead ends: 6284 [2023-12-16 04:27:41,686 INFO L226 Difference]: Without dead ends: 4148 [2023-12-16 04:27:41,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:27:41,691 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 156 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:41,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 824 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:41,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2023-12-16 04:27:41,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 3352. [2023-12-16 04:27:41,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3025 states have (on average 1.147107438016529) internal successors, (3470), 3044 states have internal predecessors, (3470), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2023-12-16 04:27:41,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 3986 transitions. [2023-12-16 04:27:41,959 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 3986 transitions. Word has length 158 [2023-12-16 04:27:41,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:41,959 INFO L495 AbstractCegarLoop]: Abstraction has 3352 states and 3986 transitions. [2023-12-16 04:27:41,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:41,959 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 3986 transitions. [2023-12-16 04:27:41,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-16 04:27:41,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:41,963 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:41,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-16 04:27:41,963 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:41,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:41,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1603976560, now seen corresponding path program 1 times [2023-12-16 04:27:41,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:41,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963684743] [2023-12-16 04:27:41,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:41,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:42,113 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:42,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:42,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963684743] [2023-12-16 04:27:42,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963684743] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:42,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:42,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:27:42,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467337129] [2023-12-16 04:27:42,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:42,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:27:42,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:42,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:27:42,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:42,115 INFO L87 Difference]: Start difference. First operand 3352 states and 3986 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:42,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:42,435 INFO L93 Difference]: Finished difference Result 6324 states and 7556 transitions. [2023-12-16 04:27:42,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:27:42,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2023-12-16 04:27:42,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:42,443 INFO L225 Difference]: With dead ends: 6324 [2023-12-16 04:27:42,443 INFO L226 Difference]: Without dead ends: 4148 [2023-12-16 04:27:42,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:27:42,448 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 122 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:42,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1065 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:42,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2023-12-16 04:27:42,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 3292. [2023-12-16 04:27:42,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 2965 states have (on average 1.129848229342327) internal successors, (3350), 2984 states have internal predecessors, (3350), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2023-12-16 04:27:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 3866 transitions. [2023-12-16 04:27:42,783 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 3866 transitions. Word has length 158 [2023-12-16 04:27:42,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:42,784 INFO L495 AbstractCegarLoop]: Abstraction has 3292 states and 3866 transitions. [2023-12-16 04:27:42,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:42,784 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 3866 transitions. [2023-12-16 04:27:42,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:27:42,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:42,788 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:42,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-16 04:27:42,788 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:42,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:42,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1242179295, now seen corresponding path program 1 times [2023-12-16 04:27:42,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:42,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517589635] [2023-12-16 04:27:42,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:42,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:43,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:43,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517589635] [2023-12-16 04:27:43,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517589635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:43,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:43,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:27:43,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777976091] [2023-12-16 04:27:43,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:43,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:27:43,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:43,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:27:43,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:27:43,389 INFO L87 Difference]: Start difference. First operand 3292 states and 3866 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:43,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:43,934 INFO L93 Difference]: Finished difference Result 6571 states and 7794 transitions. [2023-12-16 04:27:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:27:43,934 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-16 04:27:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:43,940 INFO L225 Difference]: With dead ends: 6571 [2023-12-16 04:27:43,941 INFO L226 Difference]: Without dead ends: 3792 [2023-12-16 04:27:43,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2023-12-16 04:27:43,945 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 199 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:43,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1827 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:43,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2023-12-16 04:27:44,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3316. [2023-12-16 04:27:44,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3316 states, 2989 states have (on average 1.1288056206088992) internal successors, (3374), 3008 states have internal predecessors, (3374), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2023-12-16 04:27:44,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 3890 transitions. [2023-12-16 04:27:44,210 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 3890 transitions. Word has length 159 [2023-12-16 04:27:44,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:44,211 INFO L495 AbstractCegarLoop]: Abstraction has 3316 states and 3890 transitions. [2023-12-16 04:27:44,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:44,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 3890 transitions. [2023-12-16 04:27:44,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:27:44,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:44,215 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:44,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-16 04:27:44,215 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:44,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:44,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1635206305, now seen corresponding path program 1 times [2023-12-16 04:27:44,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:44,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243348541] [2023-12-16 04:27:44,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:44,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:44,443 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:44,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:44,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243348541] [2023-12-16 04:27:44,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243348541] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:44,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:44,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:44,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094068553] [2023-12-16 04:27:44,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:44,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:44,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:44,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:44,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:44,446 INFO L87 Difference]: Start difference. First operand 3316 states and 3890 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:44,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:44,725 INFO L93 Difference]: Finished difference Result 6388 states and 7521 transitions. [2023-12-16 04:27:44,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:44,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-16 04:27:44,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:44,732 INFO L225 Difference]: With dead ends: 6388 [2023-12-16 04:27:44,732 INFO L226 Difference]: Without dead ends: 3585 [2023-12-16 04:27:44,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:44,737 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 102 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:44,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 700 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:44,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3585 states. [2023-12-16 04:27:45,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3585 to 3298. [2023-12-16 04:27:45,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3298 states, 2971 states have (on average 1.127566475934029) internal successors, (3350), 2990 states have internal predecessors, (3350), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2023-12-16 04:27:45,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 3866 transitions. [2023-12-16 04:27:45,014 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 3866 transitions. Word has length 159 [2023-12-16 04:27:45,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:45,014 INFO L495 AbstractCegarLoop]: Abstraction has 3298 states and 3866 transitions. [2023-12-16 04:27:45,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:45,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 3866 transitions. [2023-12-16 04:27:45,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:27:45,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:45,018 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:45,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-16 04:27:45,018 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:45,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:45,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1648432006, now seen corresponding path program 1 times [2023-12-16 04:27:45,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:45,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540869963] [2023-12-16 04:27:45,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:45,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:45,231 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:45,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:45,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540869963] [2023-12-16 04:27:45,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540869963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:45,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:45,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:45,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039672323] [2023-12-16 04:27:45,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:45,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:45,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:45,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:45,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:45,233 INFO L87 Difference]: Start difference. First operand 3298 states and 3866 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:45,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:45,489 INFO L93 Difference]: Finished difference Result 3363 states and 3951 transitions. [2023-12-16 04:27:45,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:45,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-16 04:27:45,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:45,498 INFO L225 Difference]: With dead ends: 3363 [2023-12-16 04:27:45,498 INFO L226 Difference]: Without dead ends: 3361 [2023-12-16 04:27:45,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:45,500 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 7 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:45,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 550 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:45,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2023-12-16 04:27:45,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 3361. [2023-12-16 04:27:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3361 states, 3034 states have (on average 1.1249176005273567) internal successors, (3413), 3053 states have internal predecessors, (3413), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2023-12-16 04:27:45,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 3929 transitions. [2023-12-16 04:27:45,783 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 3929 transitions. Word has length 159 [2023-12-16 04:27:45,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:45,784 INFO L495 AbstractCegarLoop]: Abstraction has 3361 states and 3929 transitions. [2023-12-16 04:27:45,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:45,784 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 3929 transitions. [2023-12-16 04:27:45,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:27:45,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:45,787 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:45,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-16 04:27:45,788 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:45,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:45,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1612574051, now seen corresponding path program 1 times [2023-12-16 04:27:45,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:45,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569309290] [2023-12-16 04:27:45,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:45,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:46,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:46,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569309290] [2023-12-16 04:27:46,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569309290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:46,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:46,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:27:46,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211136027] [2023-12-16 04:27:46,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:46,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:27:46,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:46,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:27:46,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:27:46,639 INFO L87 Difference]: Start difference. First operand 3361 states and 3929 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:47,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:47,438 INFO L93 Difference]: Finished difference Result 6649 states and 7805 transitions. [2023-12-16 04:27:47,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 04:27:47,439 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-16 04:27:47,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:47,447 INFO L225 Difference]: With dead ends: 6649 [2023-12-16 04:27:47,447 INFO L226 Difference]: Without dead ends: 3801 [2023-12-16 04:27:47,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:27:47,453 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 291 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:47,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 1509 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:27:47,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3801 states. [2023-12-16 04:27:47,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3801 to 3237. [2023-12-16 04:27:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 2910 states have (on average 1.1247422680412371) internal successors, (3273), 2929 states have internal predecessors, (3273), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2023-12-16 04:27:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 3789 transitions. [2023-12-16 04:27:47,744 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 3789 transitions. Word has length 159 [2023-12-16 04:27:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:47,744 INFO L495 AbstractCegarLoop]: Abstraction has 3237 states and 3789 transitions. [2023-12-16 04:27:47,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:47,744 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 3789 transitions. [2023-12-16 04:27:47,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:27:47,748 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:47,748 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:47,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-16 04:27:47,748 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:47,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:47,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1623903563, now seen corresponding path program 1 times [2023-12-16 04:27:47,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:47,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153013585] [2023-12-16 04:27:47,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:47,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:48,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:48,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153013585] [2023-12-16 04:27:48,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153013585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:48,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:48,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:27:48,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560039012] [2023-12-16 04:27:48,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:48,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:27:48,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:48,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:27:48,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:27:48,528 INFO L87 Difference]: Start difference. First operand 3237 states and 3789 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:49,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:49,311 INFO L93 Difference]: Finished difference Result 6005 states and 7026 transitions. [2023-12-16 04:27:49,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 04:27:49,311 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-16 04:27:49,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:49,318 INFO L225 Difference]: With dead ends: 6005 [2023-12-16 04:27:49,318 INFO L226 Difference]: Without dead ends: 3263 [2023-12-16 04:27:49,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2023-12-16 04:27:49,324 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 318 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:49,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1704 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:27:49,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3263 states. [2023-12-16 04:27:49,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3263 to 2975. [2023-12-16 04:27:49,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2693 states have (on average 1.1251392499071666) internal successors, (3030), 2709 states have internal predecessors, (3030), 222 states have call successors, (222), 59 states have call predecessors, (222), 59 states have return successors, (222), 206 states have call predecessors, (222), 222 states have call successors, (222) [2023-12-16 04:27:49,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 3474 transitions. [2023-12-16 04:27:49,564 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 3474 transitions. Word has length 159 [2023-12-16 04:27:49,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:49,564 INFO L495 AbstractCegarLoop]: Abstraction has 2975 states and 3474 transitions. [2023-12-16 04:27:49,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:49,564 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 3474 transitions. [2023-12-16 04:27:49,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:27:49,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:49,568 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:49,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-16 04:27:49,568 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:49,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:49,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1994298319, now seen corresponding path program 1 times [2023-12-16 04:27:49,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:49,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098609729] [2023-12-16 04:27:49,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:49,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:50,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:50,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098609729] [2023-12-16 04:27:50,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098609729] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:50,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:50,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:27:50,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294649666] [2023-12-16 04:27:50,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:50,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:27:50,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:50,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:27:50,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:27:50,179 INFO L87 Difference]: Start difference. First operand 2975 states and 3474 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:50,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:50,643 INFO L93 Difference]: Finished difference Result 5713 states and 6715 transitions. [2023-12-16 04:27:50,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:27:50,643 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-16 04:27:50,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:50,650 INFO L225 Difference]: With dead ends: 5713 [2023-12-16 04:27:50,650 INFO L226 Difference]: Without dead ends: 3215 [2023-12-16 04:27:50,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2023-12-16 04:27:50,656 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 183 mSDsluCounter, 1787 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:50,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2059 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:27:50,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2023-12-16 04:27:50,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 2999. [2023-12-16 04:27:50,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2999 states, 2717 states have (on average 1.1240338608759661) internal successors, (3054), 2733 states have internal predecessors, (3054), 222 states have call successors, (222), 59 states have call predecessors, (222), 59 states have return successors, (222), 206 states have call predecessors, (222), 222 states have call successors, (222) [2023-12-16 04:27:50,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2999 states to 2999 states and 3498 transitions. [2023-12-16 04:27:50,895 INFO L78 Accepts]: Start accepts. Automaton has 2999 states and 3498 transitions. Word has length 159 [2023-12-16 04:27:50,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:50,895 INFO L495 AbstractCegarLoop]: Abstraction has 2999 states and 3498 transitions. [2023-12-16 04:27:50,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:50,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2999 states and 3498 transitions. [2023-12-16 04:27:50,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:27:50,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:50,899 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:50,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-16 04:27:50,899 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:50,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:50,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1601271309, now seen corresponding path program 1 times [2023-12-16 04:27:50,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:50,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981574895] [2023-12-16 04:27:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:50,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:27:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:27:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:27:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:27:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:27:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:27:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:27:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:27:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:27:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:27:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:27:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:27:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:27:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:27:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:27:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:27:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:27:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:27:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:27:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:27:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:51,137 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:27:51,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:51,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981574895] [2023-12-16 04:27:51,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981574895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:51,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:51,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:51,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659047092] [2023-12-16 04:27:51,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:51,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:51,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:51,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:51,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:51,139 INFO L87 Difference]: Start difference. First operand 2999 states and 3498 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:27:51,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:51,385 INFO L93 Difference]: Finished difference Result 5507 states and 6412 transitions. [2023-12-16 04:27:51,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:51,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-16 04:27:51,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:51,390 INFO L225 Difference]: With dead ends: 5507 [2023-12-16 04:27:51,390 INFO L226 Difference]: Without dead ends: 2985 [2023-12-16 04:27:51,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:51,394 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 90 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:51,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 620 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:51,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. Received shutdown request... [2023-12-16 04:27:51,522 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:27:51,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 2683. [2023-12-16 04:27:51,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2683 states, 2475 states have (on average 1.1216161616161615) internal successors, (2776), 2485 states have internal predecessors, (2776), 162 states have call successors, (162), 45 states have call predecessors, (162), 45 states have return successors, (162), 152 states have call predecessors, (162), 162 states have call successors, (162) [2023-12-16 04:27:51,598 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:27:51,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-16 04:27:51,599 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 04:27:51,602 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 04:27:51,605 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:27:51,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:27:51 BoogieIcfgContainer [2023-12-16 04:27:51,613 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:27:51,613 INFO L158 Benchmark]: Toolchain (without parser) took 42686.60ms. Allocated memory was 196.1MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 149.1MB in the beginning and 866.4MB in the end (delta: -717.3MB). Peak memory consumption was 311.2MB. Max. memory is 8.0GB. [2023-12-16 04:27:51,613 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 196.1MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:27:51,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.13ms. Allocated memory is still 196.1MB. Free memory was 148.6MB in the beginning and 134.4MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-16 04:27:51,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.26ms. Allocated memory is still 196.1MB. Free memory was 134.4MB in the beginning and 130.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:27:51,614 INFO L158 Benchmark]: Boogie Preprocessor took 69.62ms. Allocated memory is still 196.1MB. Free memory was 130.7MB in the beginning and 126.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:27:51,614 INFO L158 Benchmark]: RCFGBuilder took 804.92ms. Allocated memory is still 196.1MB. Free memory was 126.6MB in the beginning and 168.2MB in the end (delta: -41.6MB). Peak memory consumption was 45.3MB. Max. memory is 8.0GB. [2023-12-16 04:27:51,614 INFO L158 Benchmark]: TraceAbstraction took 41484.41ms. Allocated memory was 196.1MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 167.7MB in the beginning and 866.4MB in the end (delta: -698.8MB). Peak memory consumption was 328.8MB. Max. memory is 8.0GB. [2023-12-16 04:27:51,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 196.1MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 275.13ms. Allocated memory is still 196.1MB. Free memory was 148.6MB in the beginning and 134.4MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.26ms. Allocated memory is still 196.1MB. Free memory was 134.4MB in the beginning and 130.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.62ms. Allocated memory is still 196.1MB. Free memory was 130.7MB in the beginning and 126.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 804.92ms. Allocated memory is still 196.1MB. Free memory was 126.6MB in the beginning and 168.2MB in the end (delta: -41.6MB). Peak memory consumption was 45.3MB. Max. memory is 8.0GB. * TraceAbstraction took 41484.41ms. Allocated memory was 196.1MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 167.7MB in the beginning and 866.4MB in the end (delta: -698.8MB). Peak memory consumption was 328.8MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.4s, OverallIterations: 40, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8571 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8571 mSDsluCounter, 38179 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30347 mSDsCounter, 712 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6386 IncrementalHoareTripleChecker+Invalid, 7098 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 712 mSolverCounterUnsat, 7832 mSDtfsCounter, 6386 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2700 GetRequests, 2280 SyntacticMatches, 2 SemanticMatches, 418 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3361occurred in iteration=36, InterpolantAutomatonStates: 380, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.0s AutomataMinimizationTime, 40 MinimizatonAttempts, 12002 StatesRemovedByMinimization, 37 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 18.8s InterpolantComputationTime, 6507 NumberOfCodeBlocks, 6507 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 6767 ConstructedInterpolants, 0 QuantifiedInterpolants, 23555 SizeOfPredicates, 54 NumberOfNonLiveVariables, 1242 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 44 InterpolantComputations, 40 PerfectInterpolantSequences, 33308/33440 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