/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:00:15,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:00:15,127 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:00:15,130 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:00:15,130 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:00:15,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:00:15,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:00:15,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:00:15,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:00:15,159 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:00:15,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:00:15,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:00:15,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:00:15,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:00:15,161 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:00:15,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:00:15,161 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:00:15,162 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:00:15,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:00:15,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:00:15,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:00:15,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:00:15,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:00:15,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:00:15,163 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:00:15,164 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:00:15,164 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:00:15,164 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:00:15,164 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:00:15,165 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:00:15,165 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:00:15,165 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:00:15,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:00:15,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:00:15,166 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:00:15,166 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:00:15,166 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:00:15,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:00:15,167 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:00:15,167 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:00:15,167 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:00:15,168 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:00:15,168 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:00:15,168 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:00:15,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:00:15,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:00:15,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:00:15,388 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:00:15,388 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:00:15,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product10.cil.c [2023-12-19 23:00:16,986 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:00:17,252 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:00:17,253 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product10.cil.c [2023-12-19 23:00:17,281 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b131e4947/a640133479be4c7d9a49b063f9de64cb/FLAG5fa12d2a6 [2023-12-19 23:00:17,291 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b131e4947/a640133479be4c7d9a49b063f9de64cb [2023-12-19 23:00:17,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:00:17,295 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:00:17,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:00:17,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:00:17,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:00:17,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:17,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278a4a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17, skipping insertion in model container [2023-12-19 23:00:17,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:17,338 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:00:17,698 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product10.cil.c[53446,53459] [2023-12-19 23:00:17,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:00:17,726 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:00:17,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2023-12-19 23:00:17,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [460] [2023-12-19 23:00:17,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [478] [2023-12-19 23:00:17,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1558] [2023-12-19 23:00:17,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1769] [2023-12-19 23:00:17,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1967] [2023-12-19 23:00:17,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2333] [2023-12-19 23:00:17,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2354] [2023-12-19 23:00:17,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2363] [2023-12-19 23:00:17,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2504] [2023-12-19 23:00:17,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2567] [2023-12-19 23:00:17,802 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product10.cil.c[53446,53459] [2023-12-19 23:00:17,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:00:17,838 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:00:17,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17 WrapperNode [2023-12-19 23:00:17,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:00:17,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:00:17,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:00:17,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:00:17,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:17,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:18,008 INFO L138 Inliner]: procedures = 110, calls = 121, calls flagged for inlining = 40, calls inlined = 33, statements flattened = 612 [2023-12-19 23:00:18,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:00:18,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:00:18,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:00:18,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:00:18,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:18,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:18,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:18,078 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 0 writes are split as follows [0, 0]. [2023-12-19 23:00:18,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:18,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:18,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:18,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:18,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:18,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:18,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:00:18,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:00:18,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:00:18,097 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:00:18,098 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (1/1) ... [2023-12-19 23:00:18,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:00:18,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:00:18,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 23:00:18,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 23:00:18,148 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-19 23:00:18,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-19 23:00:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-19 23:00:18,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-19 23:00:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-19 23:00:18,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-19 23:00:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-19 23:00:18,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-19 23:00:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-19 23:00:18,149 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-19 23:00:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-19 23:00:18,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-19 23:00:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:00:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-19 23:00:18,150 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-19 23:00:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-19 23:00:18,150 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-19 23:00:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-19 23:00:18,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-19 23:00:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:00:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 23:00:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:00:18,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:00:18,349 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:00:18,351 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:00:18,705 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:00:18,745 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:00:18,745 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 23:00:18,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:00:18 BoogieIcfgContainer [2023-12-19 23:00:18,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:00:18,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:00:18,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:00:18,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:00:18,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:00:17" (1/3) ... [2023-12-19 23:00:18,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8dcc47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:00:18, skipping insertion in model container [2023-12-19 23:00:18,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:00:17" (2/3) ... [2023-12-19 23:00:18,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8dcc47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:00:18, skipping insertion in model container [2023-12-19 23:00:18,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:00:18" (3/3) ... [2023-12-19 23:00:18,751 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product10.cil.c [2023-12-19 23:00:18,762 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:00:18,763 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:00:18,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:00:18,821 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7de09c0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:00:18,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:00:18,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 101 states have (on average 1.5841584158415842) internal successors, (160), 103 states have internal predecessors, (160), 19 states have call successors, (19), 9 states have call predecessors, (19), 9 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 23:00:18,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-19 23:00:18,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:18,833 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:18,833 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:18,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:18,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1317821752, now seen corresponding path program 1 times [2023-12-19 23:00:18,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:18,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802102395] [2023-12-19 23:00:18,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:18,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:19,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:19,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:00:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:19,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 23:00:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:19,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 23:00:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-19 23:00:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:19,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 23:00:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 23:00:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-19 23:00:19,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:19,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802102395] [2023-12-19 23:00:19,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802102395] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:00:19,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183130897] [2023-12-19 23:00:19,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:19,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:00:19,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:00:19,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:00:19,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 23:00:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:19,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 23:00:19,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:00:19,726 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 23:00:19,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:00:19,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183130897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:19,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:00:19,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2023-12-19 23:00:19,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303800688] [2023-12-19 23:00:19,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:19,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:00:19,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:19,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:00:19,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:00:19,763 INFO L87 Difference]: Start difference. First operand has 131 states, 101 states have (on average 1.5841584158415842) internal successors, (160), 103 states have internal predecessors, (160), 19 states have call successors, (19), 9 states have call predecessors, (19), 9 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:19,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:19,831 INFO L93 Difference]: Finished difference Result 216 states and 316 transitions. [2023-12-19 23:00:19,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:00:19,833 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-19 23:00:19,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:19,844 INFO L225 Difference]: With dead ends: 216 [2023-12-19 23:00:19,844 INFO L226 Difference]: Without dead ends: 128 [2023-12-19 23:00:19,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:00:19,853 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:19,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:00:19,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-19 23:00:19,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-12-19 23:00:19,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 99 states have (on average 1.5454545454545454) internal successors, (153), 100 states have internal predecessors, (153), 19 states have call successors, (19), 9 states have call predecessors, (19), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-19 23:00:19,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 190 transitions. [2023-12-19 23:00:19,895 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 190 transitions. Word has length 60 [2023-12-19 23:00:19,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:19,896 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 190 transitions. [2023-12-19 23:00:19,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:19,896 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 190 transitions. [2023-12-19 23:00:19,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-19 23:00:19,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:19,898 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:19,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 23:00:20,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 23:00:20,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:20,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:20,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1413938838, now seen corresponding path program 1 times [2023-12-19 23:00:20,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:20,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346826372] [2023-12-19 23:00:20,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:20,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:00:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:00:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 23:00:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 23:00:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 23:00:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:00:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-19 23:00:20,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:20,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346826372] [2023-12-19 23:00:20,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346826372] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:00:20,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083261229] [2023-12-19 23:00:20,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:20,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:00:20,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:00:20,275 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:00:20,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 23:00:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 23:00:20,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:00:20,491 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-19 23:00:20,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:00:20,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083261229] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:20,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:00:20,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-19 23:00:20,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204218005] [2023-12-19 23:00:20,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:20,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:00:20,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:20,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:00:20,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:00:20,494 INFO L87 Difference]: Start difference. First operand 128 states and 190 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:20,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:20,545 INFO L93 Difference]: Finished difference Result 212 states and 303 transitions. [2023-12-19 23:00:20,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:00:20,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2023-12-19 23:00:20,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:20,548 INFO L225 Difference]: With dead ends: 212 [2023-12-19 23:00:20,548 INFO L226 Difference]: Without dead ends: 130 [2023-12-19 23:00:20,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:00:20,551 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:20,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 353 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:00:20,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-19 23:00:20,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2023-12-19 23:00:20,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 101 states have (on average 1.5346534653465347) internal successors, (155), 102 states have internal predecessors, (155), 19 states have call successors, (19), 9 states have call predecessors, (19), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-19 23:00:20,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2023-12-19 23:00:20,565 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 61 [2023-12-19 23:00:20,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:20,566 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2023-12-19 23:00:20,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:20,566 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2023-12-19 23:00:20,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-19 23:00:20,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:20,567 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:20,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 23:00:20,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 23:00:20,776 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:20,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:20,777 INFO L85 PathProgramCache]: Analyzing trace with hash -2038153332, now seen corresponding path program 1 times [2023-12-19 23:00:20,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:20,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627485028] [2023-12-19 23:00:20,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:20,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:00:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 23:00:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 23:00:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 23:00:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 23:00:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 23:00:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:20,981 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-19 23:00:20,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:20,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627485028] [2023-12-19 23:00:20,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627485028] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:00:20,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515580216] [2023-12-19 23:00:20,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:20,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:00:20,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:00:20,983 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:00:21,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 23:00:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:21,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 23:00:21,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:00:21,221 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-19 23:00:21,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:00:21,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515580216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:21,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:00:21,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-19 23:00:21,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481032140] [2023-12-19 23:00:21,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:21,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:00:21,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:21,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:00:21,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-19 23:00:21,223 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 23:00:21,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:21,282 INFO L93 Difference]: Finished difference Result 257 states and 381 transitions. [2023-12-19 23:00:21,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:00:21,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2023-12-19 23:00:21,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:21,287 INFO L225 Difference]: With dead ends: 257 [2023-12-19 23:00:21,287 INFO L226 Difference]: Without dead ends: 132 [2023-12-19 23:00:21,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:00:21,290 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 8 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:21,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 661 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:00:21,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-12-19 23:00:21,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2023-12-19 23:00:21,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 102 states have (on average 1.5294117647058822) internal successors, (156), 104 states have internal predecessors, (156), 19 states have call successors, (19), 9 states have call predecessors, (19), 10 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) [2023-12-19 23:00:21,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 195 transitions. [2023-12-19 23:00:21,314 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 195 transitions. Word has length 65 [2023-12-19 23:00:21,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:21,314 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 195 transitions. [2023-12-19 23:00:21,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 23:00:21,314 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 195 transitions. [2023-12-19 23:00:21,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-19 23:00:21,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:21,315 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:21,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 23:00:21,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:00:21,525 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:21,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:21,525 INFO L85 PathProgramCache]: Analyzing trace with hash 219881415, now seen corresponding path program 1 times [2023-12-19 23:00:21,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:21,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533382882] [2023-12-19 23:00:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:21,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:21,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:21,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:21,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 23:00:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:21,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 23:00:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 23:00:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:21,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 23:00:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:21,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 23:00:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:21,658 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-19 23:00:21,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:21,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533382882] [2023-12-19 23:00:21,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533382882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:21,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:21,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 23:00:21,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166519556] [2023-12-19 23:00:21,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:21,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 23:00:21,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:21,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 23:00:21,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:00:21,660 INFO L87 Difference]: Start difference. First operand 132 states and 195 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 23:00:22,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:22,407 INFO L93 Difference]: Finished difference Result 354 states and 541 transitions. [2023-12-19 23:00:22,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 23:00:22,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 66 [2023-12-19 23:00:22,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:22,425 INFO L225 Difference]: With dead ends: 354 [2023-12-19 23:00:22,425 INFO L226 Difference]: Without dead ends: 237 [2023-12-19 23:00:22,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:00:22,426 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 286 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:22,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 449 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 23:00:22,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-12-19 23:00:22,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 132. [2023-12-19 23:00:22,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 102 states have (on average 1.5294117647058822) internal successors, (156), 104 states have internal predecessors, (156), 19 states have call successors, (19), 9 states have call predecessors, (19), 10 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2023-12-19 23:00:22,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 194 transitions. [2023-12-19 23:00:22,442 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 194 transitions. Word has length 66 [2023-12-19 23:00:22,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:22,442 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 194 transitions. [2023-12-19 23:00:22,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 23:00:22,442 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 194 transitions. [2023-12-19 23:00:22,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-19 23:00:22,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:22,444 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:22,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:00:22,444 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:22,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:22,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1923971428, now seen corresponding path program 2 times [2023-12-19 23:00:22,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:22,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245733277] [2023-12-19 23:00:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:22,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:22,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:22,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:00:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:22,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:00:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:22,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 23:00:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:22,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 23:00:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:22,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 23:00:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-19 23:00:22,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:22,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245733277] [2023-12-19 23:00:22,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245733277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:22,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:22,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 23:00:22,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651823996] [2023-12-19 23:00:22,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:22,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 23:00:22,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:22,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 23:00:22,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:00:22,583 INFO L87 Difference]: Start difference. First operand 132 states and 194 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 23:00:23,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:23,294 INFO L93 Difference]: Finished difference Result 356 states and 544 transitions. [2023-12-19 23:00:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 23:00:23,295 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 67 [2023-12-19 23:00:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:23,297 INFO L225 Difference]: With dead ends: 356 [2023-12-19 23:00:23,297 INFO L226 Difference]: Without dead ends: 239 [2023-12-19 23:00:23,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:00:23,298 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 281 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:23,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 451 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 23:00:23,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-12-19 23:00:23,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 134. [2023-12-19 23:00:23,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 103 states have (on average 1.5242718446601942) internal successors, (157), 106 states have internal predecessors, (157), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:23,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 197 transitions. [2023-12-19 23:00:23,324 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 197 transitions. Word has length 67 [2023-12-19 23:00:23,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:23,325 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 197 transitions. [2023-12-19 23:00:23,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-19 23:00:23,325 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 197 transitions. [2023-12-19 23:00:23,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-19 23:00:23,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:23,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:23,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:00:23,327 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:23,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:23,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1122609812, now seen corresponding path program 1 times [2023-12-19 23:00:23,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:23,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818844708] [2023-12-19 23:00:23,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:23,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:23,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:23,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:23,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:00:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:23,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 23:00:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 23:00:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:23,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 23:00:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:23,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:00:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:23,423 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:23,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:23,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818844708] [2023-12-19 23:00:23,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818844708] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:00:23,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998822174] [2023-12-19 23:00:23,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:23,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:00:23,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:00:23,425 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:00:23,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 23:00:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:23,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 23:00:23,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:00:23,607 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:23,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:00:23,650 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:23,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998822174] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:00:23,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:00:23,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2023-12-19 23:00:23,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184979421] [2023-12-19 23:00:23,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:00:23,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 23:00:23,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:23,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 23:00:23,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:23,652 INFO L87 Difference]: Start difference. First operand 134 states and 197 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-19 23:00:24,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:24,301 INFO L93 Difference]: Finished difference Result 432 states and 689 transitions. [2023-12-19 23:00:24,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 23:00:24,302 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2023-12-19 23:00:24,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:24,304 INFO L225 Difference]: With dead ends: 432 [2023-12-19 23:00:24,304 INFO L226 Difference]: Without dead ends: 350 [2023-12-19 23:00:24,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:00:24,305 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 516 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:24,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 581 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 23:00:24,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-12-19 23:00:24,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 230. [2023-12-19 23:00:24,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 199 states have (on average 1.693467336683417) internal successors, (337), 202 states have internal predecessors, (337), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:24,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 377 transitions. [2023-12-19 23:00:24,319 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 377 transitions. Word has length 68 [2023-12-19 23:00:24,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:24,319 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 377 transitions. [2023-12-19 23:00:24,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-19 23:00:24,319 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 377 transitions. [2023-12-19 23:00:24,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-19 23:00:24,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:24,320 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:24,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 23:00:24,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:00:24,527 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:24,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:24,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1863339586, now seen corresponding path program 1 times [2023-12-19 23:00:24,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:24,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093343153] [2023-12-19 23:00:24,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:24,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:24,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:24,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:24,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:24,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-19 23:00:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:24,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 23:00:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:24,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 23:00:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:24,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 23:00:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:24,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:00:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:24,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:24,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093343153] [2023-12-19 23:00:24,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093343153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:24,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:24,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:00:24,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655378298] [2023-12-19 23:00:24,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:24,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:00:24,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:24,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:00:24,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:00:24,622 INFO L87 Difference]: Start difference. First operand 230 states and 377 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:25,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:25,084 INFO L93 Difference]: Finished difference Result 643 states and 1082 transitions. [2023-12-19 23:00:25,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:00:25,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2023-12-19 23:00:25,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:25,087 INFO L225 Difference]: With dead ends: 643 [2023-12-19 23:00:25,087 INFO L226 Difference]: Without dead ends: 435 [2023-12-19 23:00:25,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:25,088 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 336 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:25,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 328 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:00:25,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-12-19 23:00:25,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 325. [2023-12-19 23:00:25,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 294 states have (on average 1.7346938775510203) internal successors, (510), 297 states have internal predecessors, (510), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:25,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 550 transitions. [2023-12-19 23:00:25,100 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 550 transitions. Word has length 75 [2023-12-19 23:00:25,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:25,100 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 550 transitions. [2023-12-19 23:00:25,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:25,100 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 550 transitions. [2023-12-19 23:00:25,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-19 23:00:25,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:25,101 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:25,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 23:00:25,101 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:25,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:25,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1859154860, now seen corresponding path program 1 times [2023-12-19 23:00:25,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:25,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049562483] [2023-12-19 23:00:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:25,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 23:00:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 23:00:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:00:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 23:00:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:00:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,168 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:25,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:25,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049562483] [2023-12-19 23:00:25,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049562483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:25,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:25,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:00:25,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833516068] [2023-12-19 23:00:25,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:25,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:00:25,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:25,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:00:25,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:00:25,170 INFO L87 Difference]: Start difference. First operand 325 states and 550 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:25,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:25,652 INFO L93 Difference]: Finished difference Result 860 states and 1480 transitions. [2023-12-19 23:00:25,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:00:25,653 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2023-12-19 23:00:25,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:25,655 INFO L225 Difference]: With dead ends: 860 [2023-12-19 23:00:25,655 INFO L226 Difference]: Without dead ends: 572 [2023-12-19 23:00:25,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:25,656 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 332 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:25,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 316 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:00:25,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-12-19 23:00:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 462. [2023-12-19 23:00:25,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 431 states have (on average 1.7563805104408352) internal successors, (757), 434 states have internal predecessors, (757), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:25,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 797 transitions. [2023-12-19 23:00:25,671 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 797 transitions. Word has length 76 [2023-12-19 23:00:25,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:25,671 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 797 transitions. [2023-12-19 23:00:25,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:25,671 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 797 transitions. [2023-12-19 23:00:25,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-19 23:00:25,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:25,673 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:25,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 23:00:25,673 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:25,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:25,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1380626268, now seen corresponding path program 1 times [2023-12-19 23:00:25,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:25,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178187788] [2023-12-19 23:00:25,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:25,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 23:00:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 23:00:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:00:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:00:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:00:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:25,732 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:25,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:25,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178187788] [2023-12-19 23:00:25,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178187788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:25,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:25,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:00:25,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651451759] [2023-12-19 23:00:25,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:25,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:00:25,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:25,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:00:25,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:00:25,733 INFO L87 Difference]: Start difference. First operand 462 states and 797 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:26,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:26,289 INFO L93 Difference]: Finished difference Result 1218 states and 2126 transitions. [2023-12-19 23:00:26,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:00:26,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2023-12-19 23:00:26,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:26,292 INFO L225 Difference]: With dead ends: 1218 [2023-12-19 23:00:26,292 INFO L226 Difference]: Without dead ends: 810 [2023-12-19 23:00:26,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:26,295 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 333 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:26,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 321 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 23:00:26,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2023-12-19 23:00:26,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 700. [2023-12-19 23:00:26,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 669 states have (on average 1.7608370702541105) internal successors, (1178), 672 states have internal predecessors, (1178), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:26,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1218 transitions. [2023-12-19 23:00:26,314 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1218 transitions. Word has length 77 [2023-12-19 23:00:26,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:26,314 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 1218 transitions. [2023-12-19 23:00:26,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:26,315 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1218 transitions. [2023-12-19 23:00:26,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-19 23:00:26,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:26,316 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:26,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 23:00:26,316 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:26,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:26,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1921345826, now seen corresponding path program 1 times [2023-12-19 23:00:26,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:26,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814906374] [2023-12-19 23:00:26,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:26,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 23:00:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 23:00:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:00:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 23:00:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 23:00:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,382 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:26,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:26,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814906374] [2023-12-19 23:00:26,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814906374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:26,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:26,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:00:26,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743508443] [2023-12-19 23:00:26,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:26,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:00:26,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:26,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:00:26,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:00:26,384 INFO L87 Difference]: Start difference. First operand 700 states and 1218 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:26,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:26,879 INFO L93 Difference]: Finished difference Result 1795 states and 3154 transitions. [2023-12-19 23:00:26,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:00:26,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2023-12-19 23:00:26,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:26,884 INFO L225 Difference]: With dead ends: 1795 [2023-12-19 23:00:26,885 INFO L226 Difference]: Without dead ends: 1192 [2023-12-19 23:00:26,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:26,887 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 329 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:26,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 328 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:00:26,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2023-12-19 23:00:26,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1082. [2023-12-19 23:00:26,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1051 states have (on average 1.7554709800190296) internal successors, (1845), 1054 states have internal predecessors, (1845), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:26,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1885 transitions. [2023-12-19 23:00:26,917 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1885 transitions. Word has length 78 [2023-12-19 23:00:26,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:26,917 INFO L495 AbstractCegarLoop]: Abstraction has 1082 states and 1885 transitions. [2023-12-19 23:00:26,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:26,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1885 transitions. [2023-12-19 23:00:26,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-19 23:00:26,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:26,919 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:26,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 23:00:26,919 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:26,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:26,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1979010438, now seen corresponding path program 1 times [2023-12-19 23:00:26,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:26,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994583658] [2023-12-19 23:00:26,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:26,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 23:00:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 23:00:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 23:00:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 23:00:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 23:00:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:26,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:26,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994583658] [2023-12-19 23:00:26,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994583658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:26,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:26,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:00:26,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269546740] [2023-12-19 23:00:26,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:26,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:00:26,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:26,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:00:26,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:00:26,981 INFO L87 Difference]: Start difference. First operand 1082 states and 1885 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:27,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:27,474 INFO L93 Difference]: Finished difference Result 2736 states and 4815 transitions. [2023-12-19 23:00:27,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:00:27,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2023-12-19 23:00:27,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:27,481 INFO L225 Difference]: With dead ends: 2736 [2023-12-19 23:00:27,481 INFO L226 Difference]: Without dead ends: 1824 [2023-12-19 23:00:27,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:27,483 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 328 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:27,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 328 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:00:27,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2023-12-19 23:00:27,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1714. [2023-12-19 23:00:27,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1683 states have (on average 1.7462863933452168) internal successors, (2939), 1686 states have internal predecessors, (2939), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:27,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2979 transitions. [2023-12-19 23:00:27,531 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2979 transitions. Word has length 79 [2023-12-19 23:00:27,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:27,531 INFO L495 AbstractCegarLoop]: Abstraction has 1714 states and 2979 transitions. [2023-12-19 23:00:27,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:27,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2979 transitions. [2023-12-19 23:00:27,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-19 23:00:27,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:27,534 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:27,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 23:00:27,534 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:27,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:27,535 INFO L85 PathProgramCache]: Analyzing trace with hash 812762702, now seen corresponding path program 2 times [2023-12-19 23:00:27,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:27,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483256960] [2023-12-19 23:00:27,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:27,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:27,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:27,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:27,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:27,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 23:00:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:27,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 23:00:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:27,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 23:00:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:27,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 23:00:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:27,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 23:00:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:27,636 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-19 23:00:27,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:27,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483256960] [2023-12-19 23:00:27,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483256960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:27,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:27,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:00:27,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673194929] [2023-12-19 23:00:27,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:27,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:00:27,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:27,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:00:27,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:00:27,637 INFO L87 Difference]: Start difference. First operand 1714 states and 2979 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:28,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:28,124 INFO L93 Difference]: Finished difference Result 3030 states and 5272 transitions. [2023-12-19 23:00:28,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:00:28,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2023-12-19 23:00:28,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:28,130 INFO L225 Difference]: With dead ends: 3030 [2023-12-19 23:00:28,130 INFO L226 Difference]: Without dead ends: 1824 [2023-12-19 23:00:28,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:28,134 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 334 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:28,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 547 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:00:28,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2023-12-19 23:00:28,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1714. [2023-12-19 23:00:28,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1683 states have (on average 1.7332144979203803) internal successors, (2917), 1686 states have internal predecessors, (2917), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:28,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2957 transitions. [2023-12-19 23:00:28,174 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2957 transitions. Word has length 80 [2023-12-19 23:00:28,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:28,174 INFO L495 AbstractCegarLoop]: Abstraction has 1714 states and 2957 transitions. [2023-12-19 23:00:28,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:28,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2957 transitions. [2023-12-19 23:00:28,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-19 23:00:28,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:28,177 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:28,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 23:00:28,177 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:28,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:28,177 INFO L85 PathProgramCache]: Analyzing trace with hash 997459460, now seen corresponding path program 1 times [2023-12-19 23:00:28,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:28,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897978485] [2023-12-19 23:00:28,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:28,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 23:00:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 23:00:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 23:00:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 23:00:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 23:00:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:28,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:28,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897978485] [2023-12-19 23:00:28,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897978485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:28,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:28,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:00:28,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934950417] [2023-12-19 23:00:28,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:28,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:00:28,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:28,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:00:28,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:00:28,251 INFO L87 Difference]: Start difference. First operand 1714 states and 2957 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:28,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:28,762 INFO L93 Difference]: Finished difference Result 4125 states and 7193 transitions. [2023-12-19 23:00:28,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:00:28,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2023-12-19 23:00:28,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:28,771 INFO L225 Difference]: With dead ends: 4125 [2023-12-19 23:00:28,771 INFO L226 Difference]: Without dead ends: 2756 [2023-12-19 23:00:28,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:28,776 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 328 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:28,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 315 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:00:28,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2023-12-19 23:00:28,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 2646. [2023-12-19 23:00:28,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2646 states, 2615 states have (on average 1.7204588910133842) internal successors, (4499), 2618 states have internal predecessors, (4499), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:28,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 4539 transitions. [2023-12-19 23:00:28,880 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 4539 transitions. Word has length 80 [2023-12-19 23:00:28,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:28,881 INFO L495 AbstractCegarLoop]: Abstraction has 2646 states and 4539 transitions. [2023-12-19 23:00:28,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:28,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 4539 transitions. [2023-12-19 23:00:28,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-19 23:00:28,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:28,887 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:28,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 23:00:28,887 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:28,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:28,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1519850088, now seen corresponding path program 1 times [2023-12-19 23:00:28,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:28,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080853406] [2023-12-19 23:00:28,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:28,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 23:00:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 23:00:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 23:00:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:00:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 23:00:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:28,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:28,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080853406] [2023-12-19 23:00:28,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080853406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:28,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:28,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:00:28,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662989060] [2023-12-19 23:00:28,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:28,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:00:28,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:28,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:00:28,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:00:28,945 INFO L87 Difference]: Start difference. First operand 2646 states and 4539 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:29,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:29,433 INFO L93 Difference]: Finished difference Result 6714 states and 11644 transitions. [2023-12-19 23:00:29,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:00:29,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2023-12-19 23:00:29,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:29,447 INFO L225 Difference]: With dead ends: 6714 [2023-12-19 23:00:29,447 INFO L226 Difference]: Without dead ends: 4570 [2023-12-19 23:00:29,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:29,452 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 327 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:29,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 320 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:00:29,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2023-12-19 23:00:29,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4460. [2023-12-19 23:00:29,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4460 states, 4429 states have (on average 1.7078347256717092) internal successors, (7564), 4432 states have internal predecessors, (7564), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:29,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4460 states to 4460 states and 7604 transitions. [2023-12-19 23:00:29,549 INFO L78 Accepts]: Start accepts. Automaton has 4460 states and 7604 transitions. Word has length 81 [2023-12-19 23:00:29,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:29,549 INFO L495 AbstractCegarLoop]: Abstraction has 4460 states and 7604 transitions. [2023-12-19 23:00:29,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:29,549 INFO L276 IsEmpty]: Start isEmpty. Operand 4460 states and 7604 transitions. [2023-12-19 23:00:29,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-19 23:00:29,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:29,559 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:29,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 23:00:29,559 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:29,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:29,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1262187694, now seen corresponding path program 1 times [2023-12-19 23:00:29,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:29,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731436850] [2023-12-19 23:00:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:29,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:29,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:29,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:29,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:29,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 23:00:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:29,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 23:00:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:29,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 23:00:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:29,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 23:00:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:29,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:00:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:29,615 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:29,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:29,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731436850] [2023-12-19 23:00:29,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731436850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:29,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:29,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:00:29,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583196866] [2023-12-19 23:00:29,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:29,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:00:29,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:29,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:00:29,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:00:29,617 INFO L87 Difference]: Start difference. First operand 4460 states and 7604 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:30,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:30,218 INFO L93 Difference]: Finished difference Result 11623 states and 20003 transitions. [2023-12-19 23:00:30,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:00:30,218 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2023-12-19 23:00:30,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:30,253 INFO L225 Difference]: With dead ends: 11623 [2023-12-19 23:00:30,253 INFO L226 Difference]: Without dead ends: 7900 [2023-12-19 23:00:30,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:30,260 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 322 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:30,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 328 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 23:00:30,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2023-12-19 23:00:30,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 7790. [2023-12-19 23:00:30,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7790 states, 7759 states have (on average 1.6936460884134554) internal successors, (13141), 7762 states have internal predecessors, (13141), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:30,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7790 states to 7790 states and 13181 transitions. [2023-12-19 23:00:30,451 INFO L78 Accepts]: Start accepts. Automaton has 7790 states and 13181 transitions. Word has length 82 [2023-12-19 23:00:30,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:30,451 INFO L495 AbstractCegarLoop]: Abstraction has 7790 states and 13181 transitions. [2023-12-19 23:00:30,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:30,452 INFO L276 IsEmpty]: Start isEmpty. Operand 7790 states and 13181 transitions. [2023-12-19 23:00:30,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-19 23:00:30,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:30,462 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:30,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 23:00:30,463 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:30,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:30,463 INFO L85 PathProgramCache]: Analyzing trace with hash 177557046, now seen corresponding path program 1 times [2023-12-19 23:00:30,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:30,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039654049] [2023-12-19 23:00:30,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:30,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:30,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:30,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:30,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 23:00:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:30,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 23:00:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:00:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:30,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 23:00:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:30,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 23:00:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:30,527 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:30,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:30,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039654049] [2023-12-19 23:00:30,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039654049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:30,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:30,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:00:30,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366722330] [2023-12-19 23:00:30,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:30,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:00:30,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:30,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:00:30,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:00:30,528 INFO L87 Difference]: Start difference. First operand 7790 states and 13181 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:31,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:31,172 INFO L93 Difference]: Finished difference Result 20908 states and 35626 transitions. [2023-12-19 23:00:31,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:00:31,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2023-12-19 23:00:31,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:31,237 INFO L225 Difference]: With dead ends: 20908 [2023-12-19 23:00:31,237 INFO L226 Difference]: Without dead ends: 14156 [2023-12-19 23:00:31,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:31,262 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 323 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:31,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 320 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 23:00:31,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14156 states. [2023-12-19 23:00:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14156 to 14046. [2023-12-19 23:00:31,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14046 states, 14015 states have (on average 1.6768462361755263) internal successors, (23501), 14018 states have internal predecessors, (23501), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:31,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14046 states to 14046 states and 23541 transitions. [2023-12-19 23:00:31,551 INFO L78 Accepts]: Start accepts. Automaton has 14046 states and 23541 transitions. Word has length 83 [2023-12-19 23:00:31,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:31,551 INFO L495 AbstractCegarLoop]: Abstraction has 14046 states and 23541 transitions. [2023-12-19 23:00:31,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:31,552 INFO L276 IsEmpty]: Start isEmpty. Operand 14046 states and 23541 transitions. [2023-12-19 23:00:31,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-19 23:00:31,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:31,567 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:31,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 23:00:31,567 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:31,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:31,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1260741964, now seen corresponding path program 1 times [2023-12-19 23:00:31,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:31,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840749161] [2023-12-19 23:00:31,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:31,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:31,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:31,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:31,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:31,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 23:00:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:31,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 23:00:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:31,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 23:00:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:31,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:00:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:31,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 23:00:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:31,640 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:31,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:31,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840749161] [2023-12-19 23:00:31,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840749161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:31,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:31,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:00:31,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348267543] [2023-12-19 23:00:31,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:31,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:00:31,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:31,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:00:31,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:00:31,642 INFO L87 Difference]: Start difference. First operand 14046 states and 23541 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:32,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:32,441 INFO L93 Difference]: Finished difference Result 38725 states and 65188 transitions. [2023-12-19 23:00:32,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:00:32,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2023-12-19 23:00:32,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:32,498 INFO L225 Difference]: With dead ends: 38725 [2023-12-19 23:00:32,498 INFO L226 Difference]: Without dead ends: 26092 [2023-12-19 23:00:32,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:32,520 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 320 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:32,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 326 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 23:00:32,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26092 states. [2023-12-19 23:00:33,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26092 to 25982. [2023-12-19 23:00:33,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25982 states, 25951 states have (on average 1.656776232129783) internal successors, (42995), 25954 states have internal predecessors, (42995), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:33,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25982 states to 25982 states and 43035 transitions. [2023-12-19 23:00:33,173 INFO L78 Accepts]: Start accepts. Automaton has 25982 states and 43035 transitions. Word has length 84 [2023-12-19 23:00:33,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:33,173 INFO L495 AbstractCegarLoop]: Abstraction has 25982 states and 43035 transitions. [2023-12-19 23:00:33,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:33,173 INFO L276 IsEmpty]: Start isEmpty. Operand 25982 states and 43035 transitions. [2023-12-19 23:00:33,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-19 23:00:33,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:33,191 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:33,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 23:00:33,191 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:33,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:33,192 INFO L85 PathProgramCache]: Analyzing trace with hash 187582164, now seen corresponding path program 1 times [2023-12-19 23:00:33,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:33,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317591704] [2023-12-19 23:00:33,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:33,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:33,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:33,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:33,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 23:00:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:33,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 23:00:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:33,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 23:00:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:33,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:00:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:33,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 23:00:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:33,249 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:33,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:33,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317591704] [2023-12-19 23:00:33,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317591704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:33,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:33,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:00:33,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189980766] [2023-12-19 23:00:33,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:33,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:00:33,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:33,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:00:33,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:00:33,251 INFO L87 Difference]: Start difference. First operand 25982 states and 43035 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:34,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:34,130 INFO L93 Difference]: Finished difference Result 49141 states and 81333 transitions. [2023-12-19 23:00:34,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:00:34,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2023-12-19 23:00:34,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:34,238 INFO L225 Difference]: With dead ends: 49141 [2023-12-19 23:00:34,238 INFO L226 Difference]: Without dead ends: 49059 [2023-12-19 23:00:34,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:00:34,258 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 314 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:34,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 328 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 23:00:34,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49059 states. [2023-12-19 23:00:35,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49059 to 48949. [2023-12-19 23:00:35,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48949 states, 48918 states have (on average 1.6335500224866102) internal successors, (79910), 48921 states have internal predecessors, (79910), 19 states have call successors, (19), 9 states have call predecessors, (19), 11 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-19 23:00:35,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48949 states to 48949 states and 79950 transitions. [2023-12-19 23:00:35,560 INFO L78 Accepts]: Start accepts. Automaton has 48949 states and 79950 transitions. Word has length 85 [2023-12-19 23:00:35,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:35,560 INFO L495 AbstractCegarLoop]: Abstraction has 48949 states and 79950 transitions. [2023-12-19 23:00:35,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 23:00:35,561 INFO L276 IsEmpty]: Start isEmpty. Operand 48949 states and 79950 transitions. [2023-12-19 23:00:35,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 23:00:35,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:35,621 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:35,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 23:00:35,621 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:35,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:35,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1920916970, now seen corresponding path program 1 times [2023-12-19 23:00:35,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:35,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247975853] [2023-12-19 23:00:35,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:35,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:35,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:35,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 23:00:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:35,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:00:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:35,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 23:00:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:35,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:00:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:36,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 23:00:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:36,007 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-19 23:00:36,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:36,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247975853] [2023-12-19 23:00:36,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247975853] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:00:36,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293355807] [2023-12-19 23:00:36,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:36,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:00:36,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:00:36,022 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:00:36,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 23:00:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:36,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-19 23:00:36,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:00:36,388 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-19 23:00:36,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:00:36,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293355807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:36,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:00:36,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 26 [2023-12-19 23:00:36,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910457833] [2023-12-19 23:00:36,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:36,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 23:00:36,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:36,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 23:00:36,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2023-12-19 23:00:36,390 INFO L87 Difference]: Start difference. First operand 48949 states and 79950 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (10), 5 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-12-19 23:00:37,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:37,199 INFO L93 Difference]: Finished difference Result 49121 states and 80183 transitions. [2023-12-19 23:00:37,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 23:00:37,199 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (10), 5 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 86 [2023-12-19 23:00:37,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:37,300 INFO L225 Difference]: With dead ends: 49121 [2023-12-19 23:00:37,300 INFO L226 Difference]: Without dead ends: 49044 [2023-12-19 23:00:37,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=1239, Unknown=0, NotChecked=0, Total=1406 [2023-12-19 23:00:37,313 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 300 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:37,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 1520 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 23:00:37,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49044 states. [2023-12-19 23:00:38,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49044 to 49034. [2023-12-19 23:00:38,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49034 states, 48980 states have (on average 1.6332380563495303) internal successors, (79996), 48983 states have internal predecessors, (79996), 32 states have call successors, (32), 17 states have call predecessors, (32), 21 states have return successors, (40), 33 states have call predecessors, (40), 30 states have call successors, (40) [2023-12-19 23:00:38,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49034 states to 49034 states and 80068 transitions. [2023-12-19 23:00:38,545 INFO L78 Accepts]: Start accepts. Automaton has 49034 states and 80068 transitions. Word has length 86 [2023-12-19 23:00:38,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:38,545 INFO L495 AbstractCegarLoop]: Abstraction has 49034 states and 80068 transitions. [2023-12-19 23:00:38,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (10), 5 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-12-19 23:00:38,545 INFO L276 IsEmpty]: Start isEmpty. Operand 49034 states and 80068 transitions. [2023-12-19 23:00:38,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-19 23:00:38,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:00:38,576 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:00:38,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 23:00:38,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:00:38,782 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:00:38,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:00:38,783 INFO L85 PathProgramCache]: Analyzing trace with hash 829827647, now seen corresponding path program 1 times [2023-12-19 23:00:38,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:00:38,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358673546] [2023-12-19 23:00:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:00:38,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:00:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:38,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:00:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:38,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:00:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:38,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:00:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:38,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 23:00:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:38,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:00:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:38,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 23:00:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:38,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:00:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:38,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 23:00:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:00:38,916 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-19 23:00:38,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:00:38,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358673546] [2023-12-19 23:00:38,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358673546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:00:38,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:00:38,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 23:00:38,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741686551] [2023-12-19 23:00:38,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:00:38,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 23:00:38,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:00:38,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 23:00:38,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:00:38,920 INFO L87 Difference]: Start difference. First operand 49034 states and 80068 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-19 23:00:40,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:00:40,120 INFO L93 Difference]: Finished difference Result 49233 states and 80404 transitions. [2023-12-19 23:00:40,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 23:00:40,120 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 87 [2023-12-19 23:00:40,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:00:40,121 INFO L225 Difference]: With dead ends: 49233 [2023-12-19 23:00:40,121 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 23:00:40,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2023-12-19 23:00:40,155 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 278 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 23:00:40,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 464 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 23:00:40,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 23:00:40,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 23:00:40,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:00:40,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 23:00:40,156 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2023-12-19 23:00:40,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:00:40,156 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 23:00:40,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-19 23:00:40,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 23:00:40,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 23:00:40,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:00:40,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 23:00:40,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:03:12,019 WARN L293 SmtUtils]: Spent 2.37m on a formula simplification. DAG size of input: 2390 DAG size of output: 2388 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 23:05:20,034 WARN L293 SmtUtils]: Spent 2.00m on a formula simplification. DAG size of input: 2388 DAG size of output: 11 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-19 23:05:20,117 INFO L902 garLoopResultBuilder]: At program point L1662(line 1662) the Hoare annotation is: true [2023-12-19 23:05:20,117 INFO L899 garLoopResultBuilder]: For program point L1662-1(line 1662) no Hoare annotation was computed. [2023-12-19 23:05:20,117 INFO L899 garLoopResultBuilder]: For program point L2521-1(line 2521) no Hoare annotation was computed. [2023-12-19 23:05:20,117 INFO L902 garLoopResultBuilder]: At program point L2521(line 2521) the Hoare annotation is: true [2023-12-19 23:05:20,117 INFO L899 garLoopResultBuilder]: For program point L1522(lines 1522 1533) no Hoare annotation was computed. [2023-12-19 23:05:20,117 INFO L899 garLoopResultBuilder]: For program point L1044(lines 1044 1050) no Hoare annotation was computed. [2023-12-19 23:05:20,117 INFO L899 garLoopResultBuilder]: For program point L1036(lines 1036 1052) no Hoare annotation was computed. [2023-12-19 23:05:20,118 INFO L895 garLoopResultBuilder]: At program point L1606(line 1606) the Hoare annotation is: (or (and (= ~__ste_email_to0~0 |old(~__ste_email_to0~0)|) (= ~__ste_email_to1~0 |old(~__ste_email_to1~0)|) (= |old(~__ste_email_from0~0)| ~__ste_email_from0~0) (= |old(~__ste_email_from1~0)| ~__ste_email_from1~0)) (< ~rjh~0 2)) [2023-12-19 23:05:20,118 INFO L899 garLoopResultBuilder]: For program point L1606-1(line 1606) no Hoare annotation was computed. [2023-12-19 23:05:20,118 INFO L899 garLoopResultBuilder]: For program point getClientForwardReceiver_returnLabel#1(lines 1467 1490) no Hoare annotation was computed. [2023-12-19 23:05:20,118 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 1600 1611) the Hoare annotation is: (or (and (= ~__ste_email_to0~0 |old(~__ste_email_to0~0)|) (= ~__ste_email_to1~0 |old(~__ste_email_to1~0)|) (= |old(~__ste_email_from0~0)| ~__ste_email_from0~0) (= |old(~__ste_email_from1~0)| ~__ste_email_from1~0)) (< ~rjh~0 2)) [2023-12-19 23:05:20,118 INFO L899 garLoopResultBuilder]: For program point L1640(lines 1640 1646) no Hoare annotation was computed. [2023-12-19 23:05:20,118 INFO L895 garLoopResultBuilder]: At program point L2342(line 2342) the Hoare annotation is: (or (< ~rjh~0 2) (and (= ~__ste_email_to0~0 |old(~__ste_email_to0~0)|) (= ~__ste_email_to1~0 |old(~__ste_email_to1~0)|))) [2023-12-19 23:05:20,118 INFO L899 garLoopResultBuilder]: For program point L1640-2(lines 1632 1649) no Hoare annotation was computed. [2023-12-19 23:05:20,118 INFO L899 garLoopResultBuilder]: For program point L2342-1(line 2342) no Hoare annotation was computed. [2023-12-19 23:05:20,118 INFO L902 garLoopResultBuilder]: At program point L1764(line 1764) the Hoare annotation is: true [2023-12-19 23:05:20,118 INFO L899 garLoopResultBuilder]: For program point L1475(lines 1475 1486) no Hoare annotation was computed. [2023-12-19 23:05:20,118 INFO L899 garLoopResultBuilder]: For program point L1764-1(lines 1757 1768) no Hoare annotation was computed. [2023-12-19 23:05:20,119 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 102) no Hoare annotation was computed. [2023-12-19 23:05:20,119 INFO L902 garLoopResultBuilder]: At program point L2524(line 2524) the Hoare annotation is: true [2023-12-19 23:05:20,119 INFO L899 garLoopResultBuilder]: For program point L2524-1(line 2524) no Hoare annotation was computed. [2023-12-19 23:05:20,119 INFO L899 garLoopResultBuilder]: For program point L2359(line 2359) no Hoare annotation was computed. [2023-12-19 23:05:20,119 INFO L899 garLoopResultBuilder]: For program point L1526(lines 1526 1532) no Hoare annotation was computed. [2023-12-19 23:05:20,119 INFO L895 garLoopResultBuilder]: At program point L1749(line 1749) the Hoare annotation is: (or (< ~rjh~0 2) (and (= ~__ste_email_to0~0 |old(~__ste_email_to0~0)|) (= ~__ste_email_to1~0 |old(~__ste_email_to1~0)|))) [2023-12-19 23:05:20,119 INFO L899 garLoopResultBuilder]: For program point L1749-1(line 1749) no Hoare annotation was computed. [2023-12-19 23:05:20,119 INFO L899 garLoopResultBuilder]: For program point L1518(lines 1518 1534) no Hoare annotation was computed. [2023-12-19 23:05:20,119 INFO L899 garLoopResultBuilder]: For program point L2344(lines 2344 2350) no Hoare annotation was computed. [2023-12-19 23:05:20,119 INFO L899 garLoopResultBuilder]: For program point L2344-2(lines 2336 2353) no Hoare annotation was computed. [2023-12-19 23:05:20,119 INFO L899 garLoopResultBuilder]: For program point L1040(lines 1040 1051) no Hoare annotation was computed. [2023-12-19 23:05:20,119 INFO L899 garLoopResultBuilder]: For program point L2527-1(line 2527) no Hoare annotation was computed. [2023-12-19 23:05:20,119 INFO L902 garLoopResultBuilder]: At program point L2527(line 2527) the Hoare annotation is: true [2023-12-19 23:05:20,119 INFO L899 garLoopResultBuilder]: For program point outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2359) no Hoare annotation was computed. [2023-12-19 23:05:20,120 INFO L899 garLoopResultBuilder]: For program point L1660(lines 1660 1667) no Hoare annotation was computed. [2023-12-19 23:05:20,120 INFO L895 garLoopResultBuilder]: At program point L1594(line 1594) the Hoare annotation is: (or (< ~rjh~0 2) (and (= ~__ste_email_to0~0 |old(~__ste_email_to0~0)|) (= ~__ste_email_to1~0 |old(~__ste_email_to1~0)|))) [2023-12-19 23:05:20,120 INFO L899 garLoopResultBuilder]: For program point L1660-2(lines 1650 1670) no Hoare annotation was computed. [2023-12-19 23:05:20,120 INFO L899 garLoopResultBuilder]: For program point L1594-1(line 1594) no Hoare annotation was computed. [2023-12-19 23:05:20,120 INFO L895 garLoopResultBuilder]: At program point L1751(line 1751) the Hoare annotation is: (or (< ~rjh~0 2) (and (= ~__ste_email_to0~0 |old(~__ste_email_to0~0)|) (= ~__ste_email_to1~0 |old(~__ste_email_to1~0)|))) [2023-12-19 23:05:20,120 INFO L902 garLoopResultBuilder]: At program point L1751-1(line 1751) the Hoare annotation is: true [2023-12-19 23:05:20,120 INFO L899 garLoopResultBuilder]: For program point getClientId_returnLabel#1(lines 1514 1537) no Hoare annotation was computed. [2023-12-19 23:05:20,120 INFO L899 garLoopResultBuilder]: For program point L1479(lines 1479 1485) no Hoare annotation was computed. [2023-12-19 23:05:20,120 INFO L899 garLoopResultBuilder]: For program point L1471(lines 1471 1487) no Hoare annotation was computed. [2023-12-19 23:05:20,120 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 103) no Hoare annotation was computed. [2023-12-19 23:05:20,120 INFO L899 garLoopResultBuilder]: For program point L1752(lines 1737 1756) no Hoare annotation was computed. [2023-12-19 23:05:20,120 INFO L899 garLoopResultBuilder]: For program point outgoingEXIT(lines 1600 1611) no Hoare annotation was computed. [2023-12-19 23:05:20,120 INFO L899 garLoopResultBuilder]: For program point getClientAutoResponse_returnLabel#1(lines 1032 1055) no Hoare annotation was computed. [2023-12-19 23:05:20,120 INFO L899 garLoopResultBuilder]: For program point getEmailId_returnLabel#1(lines 88 106) no Hoare annotation was computed. [2023-12-19 23:05:20,120 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 192) no Hoare annotation was computed. [2023-12-19 23:05:20,121 INFO L899 garLoopResultBuilder]: For program point L188-2(lines 181 196) no Hoare annotation was computed. [2023-12-19 23:05:20,121 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 181 196) the Hoare annotation is: (or (< ~rjh~0 2) (and (= ~__ste_email_to0~0 |old(~__ste_email_to0~0)|) (= ~__ste_email_to1~0 |old(~__ste_email_to1~0)|))) [2023-12-19 23:05:20,121 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 193) no Hoare annotation was computed. [2023-12-19 23:05:20,121 INFO L899 garLoopResultBuilder]: For program point setEmailToEXIT(lines 181 196) no Hoare annotation was computed. [2023-12-19 23:05:20,121 INFO L899 garLoopResultBuilder]: For program point getEmailToFINAL(lines 162 180) no Hoare annotation was computed. [2023-12-19 23:05:20,121 INFO L899 garLoopResultBuilder]: For program point getEmailToEXIT(lines 162 180) no Hoare annotation was computed. [2023-12-19 23:05:20,121 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 176) no Hoare annotation was computed. [2023-12-19 23:05:20,121 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 162 180) the Hoare annotation is: true [2023-12-19 23:05:20,121 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 177) no Hoare annotation was computed. [2023-12-19 23:05:20,121 INFO L899 garLoopResultBuilder]: For program point L2560(line 2560) no Hoare annotation was computed. [2023-12-19 23:05:20,121 INFO L899 garLoopResultBuilder]: For program point sendEmailEXIT(lines 1686 1698) no Hoare annotation was computed. [2023-12-19 23:05:20,121 INFO L895 garLoopResultBuilder]: At program point L2559-1(line 2559) the Hoare annotation is: (or (< |sendEmail_#in~receiver#1| 2) (< ~rjh~0 2) (and (= ~__ste_email_to0~0 |old(~__ste_email_to0~0)|) (= ~__ste_email_to1~0 |old(~__ste_email_to1~0)|) (<= 2 |sendEmail_createEmail_~to#1|))) [2023-12-19 23:05:20,123 INFO L895 garLoopResultBuilder]: At program point L2559(line 2559) the Hoare annotation is: (or (and (= ~__ste_email_to0~0 |old(~__ste_email_to0~0)|) (= ~__ste_email_to1~0 |old(~__ste_email_to1~0)|) (= |old(~__ste_email_from0~0)| ~__ste_email_from0~0) (= |old(~__ste_email_from1~0)| ~__ste_email_from1~0) (<= 2 |sendEmail_createEmail_~to#1|)) (< |sendEmail_#in~receiver#1| 2) (< ~rjh~0 2)) [2023-12-19 23:05:20,123 INFO L902 garLoopResultBuilder]: At program point L1694(line 1694) the Hoare annotation is: true [2023-12-19 23:05:20,123 INFO L899 garLoopResultBuilder]: For program point sendEmailFINAL(lines 1686 1698) no Hoare annotation was computed. [2023-12-19 23:05:20,123 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 1686 1698) the Hoare annotation is: (or (and (= ~__ste_email_to0~0 |old(~__ste_email_to0~0)|) (= ~__ste_email_to1~0 |old(~__ste_email_to1~0)|) (= |old(~__ste_email_from0~0)| ~__ste_email_from0~0) (= |old(~__ste_email_from1~0)| ~__ste_email_from1~0)) (< |sendEmail_#in~receiver#1| 2) (< ~rjh~0 2)) [2023-12-19 23:05:20,124 INFO L899 garLoopResultBuilder]: For program point setEmailFromEXIT(lines 144 159) no Hoare annotation was computed. [2023-12-19 23:05:20,125 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 144 159) the Hoare annotation is: (or (< ~rjh~0 2) (and (= |old(~__ste_email_from0~0)| ~__ste_email_from0~0) (= |old(~__ste_email_from1~0)| ~__ste_email_from1~0))) [2023-12-19 23:05:20,125 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 155) no Hoare annotation was computed. [2023-12-19 23:05:20,125 INFO L899 garLoopResultBuilder]: For program point L151-2(lines 144 159) no Hoare annotation was computed. [2023-12-19 23:05:20,125 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 156) no Hoare annotation was computed. [2023-12-19 23:05:20,125 INFO L899 garLoopResultBuilder]: For program point L1918(lines 1918 1922) no Hoare annotation was computed. [2023-12-19 23:05:20,125 INFO L895 garLoopResultBuilder]: At program point L2414(line 2414) the Hoare annotation is: (<= 2 ~rjh~0) [2023-12-19 23:05:20,125 INFO L899 garLoopResultBuilder]: For program point L2381-1(lines 2376 2385) no Hoare annotation was computed. [2023-12-19 23:05:20,125 INFO L902 garLoopResultBuilder]: At program point L2381(line 2381) the Hoare annotation is: true [2023-12-19 23:05:20,125 INFO L899 garLoopResultBuilder]: For program point L2414-1(line 2414) no Hoare annotation was computed. [2023-12-19 23:05:20,125 INFO L899 garLoopResultBuilder]: For program point L1060(lines 1060 1072) no Hoare annotation was computed. [2023-12-19 23:05:20,125 INFO L899 garLoopResultBuilder]: For program point L1820(lines 1820 1957) no Hoare annotation was computed. [2023-12-19 23:05:20,125 INFO L899 garLoopResultBuilder]: For program point $Ultimate##90(lines 1936 1947) no Hoare annotation was computed. [2023-12-19 23:05:20,125 INFO L899 garLoopResultBuilder]: For program point L1871(lines 1871 1875) no Hoare annotation was computed. [2023-12-19 23:05:20,125 INFO L899 garLoopResultBuilder]: For program point L2417(lines 2417 2425) no Hoare annotation was computed. [2023-12-19 23:05:20,125 INFO L899 garLoopResultBuilder]: For program point L1063(lines 1063 1071) no Hoare annotation was computed. [2023-12-19 23:05:20,126 INFO L899 garLoopResultBuilder]: For program point $Ultimate##84(lines 1925 1948) no Hoare annotation was computed. [2023-12-19 23:05:20,126 INFO L899 garLoopResultBuilder]: For program point L2401-1(lines 2396 2405) no Hoare annotation was computed. [2023-12-19 23:05:20,126 INFO L895 garLoopResultBuilder]: At program point L2401(line 2401) the Hoare annotation is: (and (<= 2 ~rjh~0) (= |ULTIMATE.start_setup_chuck_~chuck___0#1| 3)) [2023-12-19 23:05:20,126 INFO L899 garLoopResultBuilder]: For program point $Ultimate##72(lines 1903 1950) no Hoare annotation was computed. [2023-12-19 23:05:20,126 INFO L899 garLoopResultBuilder]: For program point $Ultimate##78(lines 1914 1949) no Hoare annotation was computed. [2023-12-19 23:05:20,126 INFO L899 garLoopResultBuilder]: For program point L1824(lines 1824 1828) no Hoare annotation was computed. [2023-12-19 23:05:20,126 INFO L899 garLoopResultBuilder]: For program point L1940(lines 1940 1944) no Hoare annotation was computed. [2023-12-19 23:05:20,126 INFO L899 garLoopResultBuilder]: For program point L1907(lines 1907 1911) no Hoare annotation was computed. [2023-12-19 23:05:20,126 INFO L895 garLoopResultBuilder]: At program point L1940-1(lines 1812 1958) the Hoare annotation is: (let ((.cse0 (<= 2 ~rjh~0))) (or (and .cse0 (= |ULTIMATE.start_test_~op1~0#1| 0)) (and .cse0 (= |ULTIMATE.start_test_~op1~0#1| 1)))) [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point $Ultimate##66(lines 1892 1951) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point L1495(lines 1495 1507) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point L1066(lines 1066 1070) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point L1066-2(lines 1056 1075) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point $Ultimate##51(lines 1878 1952) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point L1959(lines 1811 1960) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point L1860(lines 1860 1864) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point $Ultimate##45(lines 1867 1953) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point $Ultimate##39(lines 1856 1954) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point $Ultimate##33(lines 1845 1955) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point L1498(lines 1498 1506) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point L2423-1(lines 2406 2428) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L895 garLoopResultBuilder]: At program point L2423(line 2423) the Hoare annotation is: (< 1 ~rjh~0) [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point L2473(lines 2473 2480) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point L2473-2(lines 2473 2480) no Hoare annotation was computed. [2023-12-19 23:05:20,127 INFO L899 garLoopResultBuilder]: For program point L2391-1(lines 2386 2395) no Hoare annotation was computed. [2023-12-19 23:05:20,128 INFO L895 garLoopResultBuilder]: At program point L2391(line 2391) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_setup_rjh_~rjh___0#1|) (<= 2 ~rjh~0)) [2023-12-19 23:05:20,128 INFO L899 garLoopResultBuilder]: For program point L1813(lines 1812 1958) no Hoare annotation was computed. [2023-12-19 23:05:20,128 INFO L899 garLoopResultBuilder]: For program point $Ultimate##18(lines 1831 1956) no Hoare annotation was computed. [2023-12-19 23:05:20,128 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 23:05:20,128 INFO L899 garLoopResultBuilder]: For program point L1929(lines 1929 1933) no Hoare annotation was computed. [2023-12-19 23:05:20,128 INFO L899 garLoopResultBuilder]: For program point L1896(lines 1896 1900) no Hoare annotation was computed. [2023-12-19 23:05:20,128 INFO L899 garLoopResultBuilder]: For program point L1501(lines 1501 1505) no Hoare annotation was computed. [2023-12-19 23:05:20,128 INFO L899 garLoopResultBuilder]: For program point L1501-2(lines 1491 1510) no Hoare annotation was computed. [2023-12-19 23:05:20,128 INFO L899 garLoopResultBuilder]: For program point L1882(lines 1882 1889) no Hoare annotation was computed. [2023-12-19 23:05:20,129 INFO L899 garLoopResultBuilder]: For program point L1849(lines 1849 1853) no Hoare annotation was computed. [2023-12-19 23:05:20,129 INFO L899 garLoopResultBuilder]: For program point L1835(lines 1835 1842) no Hoare annotation was computed. [2023-12-19 23:05:20,129 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 140) no Hoare annotation was computed. [2023-12-19 23:05:20,129 INFO L899 garLoopResultBuilder]: For program point getEmailFromFINAL(lines 125 143) no Hoare annotation was computed. [2023-12-19 23:05:20,129 INFO L899 garLoopResultBuilder]: For program point getEmailFromEXIT(lines 125 143) no Hoare annotation was computed. [2023-12-19 23:05:20,129 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 125 143) the Hoare annotation is: true [2023-12-19 23:05:20,129 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 139) no Hoare annotation was computed. [2023-12-19 23:05:20,129 INFO L899 garLoopResultBuilder]: For program point isReadableEXIT(lines 2534 2542) no Hoare annotation was computed. [2023-12-19 23:05:20,129 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2534 2542) the Hoare annotation is: true [2023-12-19 23:05:20,129 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1699 1708) the Hoare annotation is: true [2023-12-19 23:05:20,130 INFO L899 garLoopResultBuilder]: For program point queueEXIT(lines 1699 1708) no Hoare annotation was computed. [2023-12-19 23:05:20,131 INFO L899 garLoopResultBuilder]: For program point setClientIdEXIT(lines 1538 1557) no Hoare annotation was computed. [2023-12-19 23:05:20,131 INFO L899 garLoopResultBuilder]: For program point L1548(lines 1548 1552) no Hoare annotation was computed. [2023-12-19 23:05:20,131 INFO L899 garLoopResultBuilder]: For program point L1548-2(lines 1538 1557) no Hoare annotation was computed. [2023-12-19 23:05:20,131 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 1538 1557) the Hoare annotation is: (and (= |old(~__ste_client_idCounter0~0)| ~__ste_client_idCounter0~0) (= |old(~__ste_client_idCounter1~0)| ~__ste_client_idCounter1~0) (= |old(~__ste_client_idCounter2~0)| ~__ste_client_idCounter2~0)) [2023-12-19 23:05:20,131 INFO L899 garLoopResultBuilder]: For program point L1545(lines 1545 1553) no Hoare annotation was computed. [2023-12-19 23:05:20,131 INFO L899 garLoopResultBuilder]: For program point L1542(lines 1542 1554) no Hoare annotation was computed. [2023-12-19 23:05:20,133 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:05:20,136 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:05:20,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:05:20 BoogieIcfgContainer [2023-12-19 23:05:20,149 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:05:20,150 INFO L158 Benchmark]: Toolchain (without parser) took 302854.85ms. Allocated memory was 348.1MB in the beginning and 4.8GB in the end (delta: 4.5GB). Free memory was 293.3MB in the beginning and 3.9GB in the end (delta: -3.6GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB. [2023-12-19 23:05:20,150 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 227.5MB. Free memory is still 176.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:05:20,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 564.71ms. Allocated memory is still 348.1MB. Free memory was 293.1MB in the beginning and 312.6MB in the end (delta: -19.5MB). Peak memory consumption was 43.9MB. Max. memory is 8.0GB. [2023-12-19 23:05:20,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 153.25ms. Allocated memory is still 348.1MB. Free memory was 312.6MB in the beginning and 307.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 23:05:20,154 INFO L158 Benchmark]: Boogie Preprocessor took 80.75ms. Allocated memory is still 348.1MB. Free memory was 307.9MB in the beginning and 303.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 23:05:20,155 INFO L158 Benchmark]: RCFGBuilder took 648.71ms. Allocated memory is still 348.1MB. Free memory was 303.7MB in the beginning and 259.7MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2023-12-19 23:05:20,155 INFO L158 Benchmark]: TraceAbstraction took 301402.42ms. Allocated memory was 348.1MB in the beginning and 4.8GB in the end (delta: 4.5GB). Free memory was 259.1MB in the beginning and 3.9GB in the end (delta: -3.6GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB. [2023-12-19 23:05:20,158 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 227.5MB. Free memory is still 176.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 564.71ms. Allocated memory is still 348.1MB. Free memory was 293.1MB in the beginning and 312.6MB in the end (delta: -19.5MB). Peak memory consumption was 43.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 153.25ms. Allocated memory is still 348.1MB. Free memory was 312.6MB in the beginning and 307.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 80.75ms. Allocated memory is still 348.1MB. Free memory was 307.9MB in the beginning and 303.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 648.71ms. Allocated memory is still 348.1MB. Free memory was 303.7MB in the beginning and 259.7MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * TraceAbstraction took 301402.42ms. Allocated memory was 348.1MB in the beginning and 4.8GB in the end (delta: 4.5GB). Free memory was 259.1MB in the beginning and 3.9GB in the end (delta: -3.6GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] - GenericResultAtLocation [Line: 460]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [460] - GenericResultAtLocation [Line: 478]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [478] - GenericResultAtLocation [Line: 1558]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1558] - GenericResultAtLocation [Line: 1769]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1769] - GenericResultAtLocation [Line: 1967]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1967] - GenericResultAtLocation [Line: 2333]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2333] - GenericResultAtLocation [Line: 2354]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2354] - GenericResultAtLocation [Line: 2363]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2363] - GenericResultAtLocation [Line: 2504]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2504] - GenericResultAtLocation [Line: 2567]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2567] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 2359]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 131 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 301.3s, OverallIterations: 20, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 280.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5755 SdHoareTripleChecker+Valid, 7.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5595 mSDsluCounter, 8764 SdHoareTripleChecker+Invalid, 6.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6764 mSDsCounter, 1659 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13773 IncrementalHoareTripleChecker+Invalid, 15432 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1659 mSolverCounterUnsat, 2000 mSDtfsCounter, 13773 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 938 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49034occurred in iteration=19, InterpolantAutomatonStates: 164, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 1660 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 940 PreInvPairs, 7964 NumberOfFragments, 217 HoareAnnotationTreeSize, 940 FormulaSimplifications, 4048080791675 FormulaSimplificationTreeSizeReduction, 159.7s HoareSimplificationTime, 29 FormulaSimplificationsInter, 56467 FormulaSimplificationTreeSizeReductionInter, 120.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1860 NumberOfCodeBlocks, 1860 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 1902 ConstructedInterpolants, 0 QuantifiedInterpolants, 3484 SizeOfPredicates, 18 NumberOfNonLiveVariables, 3775 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 26 InterpolantComputations, 19 PerfectInterpolantSequences, 462/481 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1812]: Loop Invariant Derived loop invariant: (((2 <= rjh) && (op1 == 0)) || ((2 <= rjh) && (op1 == 1))) RESULT: Ultimate proved your program to be correct! [2023-12-19 23:05:20,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...