/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/systemc/transmitter.13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:51:42,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:51:42,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:51:42,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:51:42,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:51:42,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:51:42,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:51:42,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:51:42,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:51:42,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:51:42,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:51:42,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:51:42,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:51:42,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:51:42,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:51:42,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:51:42,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:51:42,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:51:42,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:51:42,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:51:42,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:51:42,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:51:42,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:51:42,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:51:42,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 17:51:42,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 17:51:42,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 17:51:42,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 17:51:42,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 17:51:42,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 17:51:42,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:51:42,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:51:42,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:51:42,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:51:42,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:51:42,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:51:42,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:51:42,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:51:42,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:51:42,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:51:42,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:51:42,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 17:51:42,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:51:42,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:51:42,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:51:42,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:51:42,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:51:42,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:51:42,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:51:42,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:51:42,287 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:51:42,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:51:42,289 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:51:42,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:51:42,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:51:42,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:51:42,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:51:42,291 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:51:42,291 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:51:42,291 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:51:42,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:51:42,292 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:51:42,292 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:51:42,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:51:42,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:51:42,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:51:42,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:51:42,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:51:42,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:51:42,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:51:42,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:51:42,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:51:42,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:51:42,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:51:42,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:51:42,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:51:42,842 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:51:42,843 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:51:42,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.13.cil.c [2022-10-15 17:51:42,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b3b2947b/d38c256483dd43f18b183e001b419085/FLAG997a56356 [2022-10-15 17:51:43,847 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:51:43,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.13.cil.c [2022-10-15 17:51:43,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b3b2947b/d38c256483dd43f18b183e001b419085/FLAG997a56356 [2022-10-15 17:51:44,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b3b2947b/d38c256483dd43f18b183e001b419085 [2022-10-15 17:51:44,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:51:44,140 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:51:44,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:51:44,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:51:44,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:51:44,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:44,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1172966f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44, skipping insertion in model container [2022-10-15 17:51:44,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:44,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:51:44,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:51:44,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.13.cil.c[706,719] [2022-10-15 17:51:44,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:51:44,790 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:51:44,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.13.cil.c[706,719] [2022-10-15 17:51:44,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:51:44,911 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:51:44,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44 WrapperNode [2022-10-15 17:51:44,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:51:44,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:51:44,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:51:44,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:51:44,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:44,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:45,036 INFO L138 Inliner]: procedures = 54, calls = 69, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 891 [2022-10-15 17:51:45,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:51:45,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:51:45,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:51:45,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:51:45,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:45,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:45,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:45,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:45,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:45,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:45,122 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:45,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:45,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:51:45,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:51:45,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:51:45,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:51:45,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44" (1/1) ... [2022-10-15 17:51:45,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:51:45,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:51:45,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 17:51:45,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 17:51:45,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:51:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-15 17:51:45,303 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-15 17:51:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-15 17:51:45,304 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-15 17:51:45,304 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-15 17:51:45,304 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-15 17:51:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-15 17:51:45,305 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-15 17:51:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-15 17:51:45,305 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-15 17:51:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-15 17:51:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-15 17:51:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:51:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:51:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:51:45,462 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:51:45,465 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:51:46,681 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:51:46,714 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:51:46,715 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-10-15 17:51:46,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:51:46 BoogieIcfgContainer [2022-10-15 17:51:46,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:51:46,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:51:46,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:51:46,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:51:46,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:51:44" (1/3) ... [2022-10-15 17:51:46,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4f1a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:51:46, skipping insertion in model container [2022-10-15 17:51:46,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:51:44" (2/3) ... [2022-10-15 17:51:46,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4f1a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:51:46, skipping insertion in model container [2022-10-15 17:51:46,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:51:46" (3/3) ... [2022-10-15 17:51:46,733 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.13.cil.c [2022-10-15 17:51:46,757 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:51:46,757 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:51:46,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:51:46,861 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@6d28ec3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:51:46,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:51:46,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 404 states, 369 states have (on average 1.6693766937669376) internal successors, (616), 372 states have internal predecessors, (616), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-10-15 17:51:46,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-10-15 17:51:46,892 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:46,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:51:46,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:46,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:46,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1011732321, now seen corresponding path program 1 times [2022-10-15 17:51:46,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:46,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783151578] [2022-10-15 17:51:46,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:46,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:47,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:51:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:47,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 17:51:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:47,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-15 17:51:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:47,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:51:47,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:47,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783151578] [2022-10-15 17:51:47,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783151578] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:47,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:47,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:51:47,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170825211] [2022-10-15 17:51:47,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:47,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:51:47,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:47,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:51:47,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:51:47,792 INFO L87 Difference]: Start difference. First operand has 404 states, 369 states have (on average 1.6693766937669376) internal successors, (616), 372 states have internal predecessors, (616), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:51:50,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:50,198 INFO L93 Difference]: Finished difference Result 554 states and 890 transitions. [2022-10-15 17:51:50,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:51:50,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 172 [2022-10-15 17:51:50,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:50,235 INFO L225 Difference]: With dead ends: 554 [2022-10-15 17:51:50,235 INFO L226 Difference]: Without dead ends: 552 [2022-10-15 17:51:50,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:51:50,249 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 1096 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:50,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 1120 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-15 17:51:50,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-10-15 17:51:50,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 401. [2022-10-15 17:51:50,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 367 states have (on average 1.5722070844686649) internal successors, (577), 369 states have internal predecessors, (577), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-10-15 17:51:50,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 629 transitions. [2022-10-15 17:51:50,394 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 629 transitions. Word has length 172 [2022-10-15 17:51:50,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:50,395 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 629 transitions. [2022-10-15 17:51:50,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:51:50,397 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 629 transitions. [2022-10-15 17:51:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-10-15 17:51:50,412 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:50,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:51:50,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:51:50,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:50,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:50,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1535781603, now seen corresponding path program 1 times [2022-10-15 17:51:50,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:50,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672675755] [2022-10-15 17:51:50,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:50,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:50,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:50,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:51:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:50,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 17:51:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:50,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-15 17:51:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:50,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-15 17:51:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:50,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:51:50,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:50,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672675755] [2022-10-15 17:51:50,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672675755] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:50,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:50,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:51:50,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121525352] [2022-10-15 17:51:50,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:50,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:51:50,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:50,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:51:50,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:51:50,786 INFO L87 Difference]: Start difference. First operand 401 states and 629 transitions. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:52,884 INFO L93 Difference]: Finished difference Result 552 states and 887 transitions. [2022-10-15 17:51:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:51:52,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-10-15 17:51:52,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:52,891 INFO L225 Difference]: With dead ends: 552 [2022-10-15 17:51:52,891 INFO L226 Difference]: Without dead ends: 552 [2022-10-15 17:51:52,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:51:52,894 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 1085 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:52,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 1112 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-15 17:51:52,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-10-15 17:51:52,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 401. [2022-10-15 17:51:52,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 367 states have (on average 1.569482288828338) internal successors, (576), 369 states have internal predecessors, (576), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-10-15 17:51:52,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 628 transitions. [2022-10-15 17:51:52,921 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 628 transitions. Word has length 199 [2022-10-15 17:51:52,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:52,922 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 628 transitions. [2022-10-15 17:51:52,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:52,922 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 628 transitions. [2022-10-15 17:51:52,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-10-15 17:51:52,926 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:52,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:51:52,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:51:52,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:52,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:52,928 INFO L85 PathProgramCache]: Analyzing trace with hash 12018981, now seen corresponding path program 1 times [2022-10-15 17:51:52,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:52,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875812115] [2022-10-15 17:51:52,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:52,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:53,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:53,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:51:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:53,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 17:51:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:53,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-15 17:51:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:53,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-15 17:51:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:53,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:51:53,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:53,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875812115] [2022-10-15 17:51:53,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875812115] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:53,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:53,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:51:53,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092464399] [2022-10-15 17:51:53,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:53,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:51:53,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:53,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:51:53,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:51:53,332 INFO L87 Difference]: Start difference. First operand 401 states and 628 transitions. Second operand has 6 states, 6 states have (on average 31.5) internal successors, (189), 4 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:57,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:57,691 INFO L93 Difference]: Finished difference Result 1102 states and 1771 transitions. [2022-10-15 17:51:57,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:51:57,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 4 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-10-15 17:51:57,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:57,699 INFO L225 Difference]: With dead ends: 1102 [2022-10-15 17:51:57,700 INFO L226 Difference]: Without dead ends: 1102 [2022-10-15 17:51:57,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:51:57,702 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 1644 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:57,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 1768 Invalid, 2228 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [117 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-10-15 17:51:57,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-10-15 17:51:57,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 797. [2022-10-15 17:51:57,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 735 states have (on average 1.582312925170068) internal successors, (1163), 738 states have internal predecessors, (1163), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2022-10-15 17:51:57,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1260 transitions. [2022-10-15 17:51:57,746 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1260 transitions. Word has length 199 [2022-10-15 17:51:57,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:57,747 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 1260 transitions. [2022-10-15 17:51:57,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 4 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:57,748 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1260 transitions. [2022-10-15 17:51:57,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-10-15 17:51:57,751 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:57,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:51:57,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:51:57,752 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:57,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:57,753 INFO L85 PathProgramCache]: Analyzing trace with hash 242849702, now seen corresponding path program 1 times [2022-10-15 17:51:57,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:57,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521244321] [2022-10-15 17:51:57,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:57,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:57,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:57,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:51:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:58,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 17:51:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:58,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-15 17:51:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:58,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-15 17:51:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:58,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:51:58,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:58,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521244321] [2022-10-15 17:51:58,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521244321] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:58,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:58,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:58,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453725098] [2022-10-15 17:51:58,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:58,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:58,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:58,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:58,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:58,157 INFO L87 Difference]: Start difference. First operand 797 states and 1260 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:52:04,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:52:04,332 INFO L93 Difference]: Finished difference Result 1862 states and 2994 transitions. [2022-10-15 17:52:04,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:52:04,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-10-15 17:52:04,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:52:04,347 INFO L225 Difference]: With dead ends: 1862 [2022-10-15 17:52:04,347 INFO L226 Difference]: Without dead ends: 1862 [2022-10-15 17:52:04,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:52:04,349 INFO L413 NwaCegarLoop]: 1310 mSDtfsCounter, 1814 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1833 SdHoareTripleChecker+Valid, 3320 SdHoareTripleChecker+Invalid, 4237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:52:04,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1833 Valid, 3320 Invalid, 4237 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-10-15 17:52:04,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2022-10-15 17:52:04,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1165. [2022-10-15 17:52:04,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 1075 states have (on average 1.5758139534883722) internal successors, (1694), 1079 states have internal predecessors, (1694), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2022-10-15 17:52:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1835 transitions. [2022-10-15 17:52:04,431 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1835 transitions. Word has length 199 [2022-10-15 17:52:04,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:52:04,432 INFO L495 AbstractCegarLoop]: Abstraction has 1165 states and 1835 transitions. [2022-10-15 17:52:04,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:52:04,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1835 transitions. [2022-10-15 17:52:04,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-10-15 17:52:04,436 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:52:04,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:52:04,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:52:04,437 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:52:04,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:52:04,439 INFO L85 PathProgramCache]: Analyzing trace with hash 262390824, now seen corresponding path program 1 times [2022-10-15 17:52:04,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:52:04,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438493424] [2022-10-15 17:52:04,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:52:04,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:52:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:04,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:52:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:04,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:52:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:04,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 17:52:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:04,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-15 17:52:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:04,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-15 17:52:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:52:04,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:52:04,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438493424] [2022-10-15 17:52:04,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438493424] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:52:04,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:52:04,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:52:04,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858727168] [2022-10-15 17:52:04,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:52:04,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:52:04,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:52:04,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:52:04,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:52:04,825 INFO L87 Difference]: Start difference. First operand 1165 states and 1835 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:52:11,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:52:11,003 INFO L93 Difference]: Finished difference Result 2915 states and 4685 transitions. [2022-10-15 17:52:11,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:52:11,004 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-10-15 17:52:11,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:52:11,025 INFO L225 Difference]: With dead ends: 2915 [2022-10-15 17:52:11,025 INFO L226 Difference]: Without dead ends: 2915 [2022-10-15 17:52:11,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:52:11,027 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 1808 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 4144 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1827 SdHoareTripleChecker+Valid, 3308 SdHoareTripleChecker+Invalid, 4228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:52:11,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1827 Valid, 3308 Invalid, 4228 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 4144 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-10-15 17:52:11,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2022-10-15 17:52:11,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 1905. [2022-10-15 17:52:11,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1759 states have (on average 1.5707788516202388) internal successors, (2763), 1765 states have internal predecessors, (2763), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2022-10-15 17:52:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2996 transitions. [2022-10-15 17:52:11,115 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2996 transitions. Word has length 199 [2022-10-15 17:52:11,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:52:11,116 INFO L495 AbstractCegarLoop]: Abstraction has 1905 states and 2996 transitions. [2022-10-15 17:52:11,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:52:11,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2996 transitions. [2022-10-15 17:52:11,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-10-15 17:52:11,122 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:52:11,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:52:11,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:52:11,123 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:52:11,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:52:11,124 INFO L85 PathProgramCache]: Analyzing trace with hash 789784874, now seen corresponding path program 1 times [2022-10-15 17:52:11,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:52:11,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741149113] [2022-10-15 17:52:11,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:52:11,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:52:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:11,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:52:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:11,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:52:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:11,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 17:52:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:11,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-15 17:52:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:11,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-15 17:52:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:52:11,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:52:11,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741149113] [2022-10-15 17:52:11,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741149113] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:52:11,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:52:11,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:52:11,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453150952] [2022-10-15 17:52:11,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:52:11,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:52:11,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:52:11,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:52:11,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:52:11,517 INFO L87 Difference]: Start difference. First operand 1905 states and 2996 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:52:17,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:52:17,750 INFO L93 Difference]: Finished difference Result 4915 states and 7867 transitions. [2022-10-15 17:52:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:52:17,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-10-15 17:52:17,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:52:17,784 INFO L225 Difference]: With dead ends: 4915 [2022-10-15 17:52:17,785 INFO L226 Difference]: Without dead ends: 4915 [2022-10-15 17:52:17,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:52:17,787 INFO L413 NwaCegarLoop]: 1293 mSDtfsCounter, 1807 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 4136 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 4220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:52:17,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 3303 Invalid, 4220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 4136 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-10-15 17:52:17,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4915 states. [2022-10-15 17:52:17,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4915 to 3386. [2022-10-15 17:52:17,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3128 states have (on average 1.5668158567774937) internal successors, (4901), 3138 states have internal predecessors, (4901), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2022-10-15 17:52:17,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 5324 transitions. [2022-10-15 17:52:17,933 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 5324 transitions. Word has length 199 [2022-10-15 17:52:17,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:52:17,934 INFO L495 AbstractCegarLoop]: Abstraction has 3386 states and 5324 transitions. [2022-10-15 17:52:17,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:52:17,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 5324 transitions. [2022-10-15 17:52:17,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-10-15 17:52:17,943 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:52:17,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:52:17,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:52:17,944 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:52:17,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:52:17,945 INFO L85 PathProgramCache]: Analyzing trace with hash -578675736, now seen corresponding path program 1 times [2022-10-15 17:52:17,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:52:17,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298297743] [2022-10-15 17:52:17,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:52:17,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:52:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:18,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:52:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:18,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:52:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:18,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 17:52:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:18,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-15 17:52:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:18,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-15 17:52:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:18,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:52:18,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:52:18,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298297743] [2022-10-15 17:52:18,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298297743] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:52:18,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:52:18,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:52:18,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379429748] [2022-10-15 17:52:18,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:52:18,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:52:18,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:52:18,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:52:18,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:52:18,350 INFO L87 Difference]: Start difference. First operand 3386 states and 5324 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:52:24,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:52:24,680 INFO L93 Difference]: Finished difference Result 8913 states and 14241 transitions. [2022-10-15 17:52:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:52:24,684 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-10-15 17:52:24,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:52:24,731 INFO L225 Difference]: With dead ends: 8913 [2022-10-15 17:52:24,731 INFO L226 Difference]: Without dead ends: 8913 [2022-10-15 17:52:24,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:52:24,738 INFO L413 NwaCegarLoop]: 1288 mSDtfsCounter, 1806 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 4128 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1825 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 4212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:52:24,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1825 Valid, 3298 Invalid, 4212 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 4128 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-10-15 17:52:24,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8913 states. [2022-10-15 17:52:24,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8913 to 6355. [2022-10-15 17:52:25,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6355 states, 5873 states have (on average 1.5642772007491912) internal successors, (9187), 5891 states have internal predecessors, (9187), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2022-10-15 17:52:25,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6355 states to 6355 states and 10008 transitions. [2022-10-15 17:52:25,037 INFO L78 Accepts]: Start accepts. Automaton has 6355 states and 10008 transitions. Word has length 199 [2022-10-15 17:52:25,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:52:25,038 INFO L495 AbstractCegarLoop]: Abstraction has 6355 states and 10008 transitions. [2022-10-15 17:52:25,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:52:25,038 INFO L276 IsEmpty]: Start isEmpty. Operand 6355 states and 10008 transitions. [2022-10-15 17:52:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-10-15 17:52:25,051 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:52:25,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:52:25,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:52:25,052 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:52:25,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:52:25,054 INFO L85 PathProgramCache]: Analyzing trace with hash 69917034, now seen corresponding path program 1 times [2022-10-15 17:52:25,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:52:25,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469949899] [2022-10-15 17:52:25,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:52:25,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:52:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:25,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:52:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:25,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:52:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 17:52:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:25,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-15 17:52:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:25,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-15 17:52:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:25,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:52:25,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:52:25,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469949899] [2022-10-15 17:52:25,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469949899] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:52:25,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:52:25,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:52:25,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815687208] [2022-10-15 17:52:25,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:52:25,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:52:25,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:52:25,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:52:25,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:52:25,451 INFO L87 Difference]: Start difference. First operand 6355 states and 10008 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:52:31,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:52:31,682 INFO L93 Difference]: Finished difference Result 16903 states and 27023 transitions. [2022-10-15 17:52:31,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:52:31,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2022-10-15 17:52:31,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:52:31,760 INFO L225 Difference]: With dead ends: 16903 [2022-10-15 17:52:31,760 INFO L226 Difference]: Without dead ends: 16903 [2022-10-15 17:52:31,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:52:31,762 INFO L413 NwaCegarLoop]: 1283 mSDtfsCounter, 1805 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 4120 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 3293 SdHoareTripleChecker+Invalid, 4204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:52:31,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1824 Valid, 3293 Invalid, 4204 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 4120 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-10-15 17:52:31,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16903 states. [2022-10-15 17:52:32,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16903 to 12308. [2022-10-15 17:52:32,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12308 states, 11378 states have (on average 1.562752680611707) internal successors, (17781), 11412 states have internal predecessors, (17781), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-10-15 17:52:32,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12308 states to 12308 states and 19452 transitions. [2022-10-15 17:52:32,204 INFO L78 Accepts]: Start accepts. Automaton has 12308 states and 19452 transitions. Word has length 199 [2022-10-15 17:52:32,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:52:32,204 INFO L495 AbstractCegarLoop]: Abstraction has 12308 states and 19452 transitions. [2022-10-15 17:52:32,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:52:32,206 INFO L276 IsEmpty]: Start isEmpty. Operand 12308 states and 19452 transitions. [2022-10-15 17:52:32,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-10-15 17:52:32,230 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:52:32,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:52:32,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:52:32,231 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:52:32,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:52:32,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1433181272, now seen corresponding path program 1 times [2022-10-15 17:52:32,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:52:32,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085016444] [2022-10-15 17:52:32,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:52:32,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:52:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:32,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:52:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:32,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:52:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:32,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 17:52:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:32,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-15 17:52:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:32,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-15 17:52:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:52:32,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:52:32,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:52:32,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085016444] [2022-10-15 17:52:32,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085016444] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:52:32,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:52:32,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:52:32,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672158312] [2022-10-15 17:52:32,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:52:32,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:52:32,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:52:32,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:52:32,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:52:32,569 INFO L87 Difference]: Start difference. First operand 12308 states and 19452 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)