/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_spec9_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:53:21,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:53:21,768 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:53:21,771 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:53:21,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:53:21,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:53:21,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:53:21,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:53:21,802 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:53:21,802 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:53:21,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:53:21,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:53:21,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:53:21,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:53:21,803 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:53:21,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:53:21,804 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:53:21,804 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:53:21,804 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:53:21,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:53:21,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:53:21,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:53:21,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:53:21,806 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:53:21,806 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:53:21,806 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:53:21,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:53:21,807 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:53:21,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:53:21,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:53:21,807 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:53:21,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:53:21,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:53:21,808 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:53:21,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:53:21,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:53:21,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:53:21,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:53:21,809 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:53:21,809 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:53:21,809 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:53:21,810 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:53:21,810 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:53:21,810 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:53:21,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:53:22,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:53:22,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:53:22,014 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:53:22,016 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:53:22,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product28.cil.c [2023-12-15 22:53:23,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:53:23,293 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:53:23,294 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product28.cil.c [2023-12-15 22:53:23,308 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e176ec00/0f06166cda0543b6bc5cba55c9d1553a/FLAG166b8c6ea [2023-12-15 22:53:23,317 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e176ec00/0f06166cda0543b6bc5cba55c9d1553a [2023-12-15 22:53:23,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:53:23,320 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:53:23,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:53:23,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:53:23,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:53:23,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:23,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c090fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23, skipping insertion in model container [2023-12-15 22:53:23,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:23,379 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:53:23,771 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_spec9_product28.cil.c[63802,63815] [2023-12-15 22:53:23,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:53:23,785 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:53:23,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [48] [2023-12-15 22:53:23,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [105] [2023-12-15 22:53:23,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [122] [2023-12-15 22:53:23,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [160] [2023-12-15 22:53:23,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [505] [2023-12-15 22:53:23,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [726] [2023-12-15 22:53:23,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1801] [2023-12-15 22:53:23,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2167] [2023-12-15 22:53:23,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2432] [2023-12-15 22:53:23,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2571] [2023-12-15 22:53:23,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2968] [2023-12-15 22:53:23,859 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_spec9_product28.cil.c[63802,63815] [2023-12-15 22:53:23,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:53:23,881 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:53:23,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23 WrapperNode [2023-12-15 22:53:23,882 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:53:23,882 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:53:23,882 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:53:23,882 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:53:23,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:23,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:23,950 INFO L138 Inliner]: procedures = 129, calls = 199, calls flagged for inlining = 56, calls inlined = 46, statements flattened = 860 [2023-12-15 22:53:23,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:53:23,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:53:23,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:53:23,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:53:23,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:23,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:23,973 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:23,994 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-15 22:53:23,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:23,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:24,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:24,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:24,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:24,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:24,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:53:24,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:53:24,049 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:53:24,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:53:24,050 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (1/1) ... [2023-12-15 22:53:24,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:53:24,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:53:24,087 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) [2023-12-15 22:53:24,099 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 [2023-12-15 22:53:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-15 22:53:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-15 22:53:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-15 22:53:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-15 22:53:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-15 22:53:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-15 22:53:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-15 22:53:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-15 22:53:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-15 22:53:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-15 22:53:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-15 22:53:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-15 22:53:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-15 22:53:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-15 22:53:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-15 22:53:24,117 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-15 22:53:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-15 22:53:24,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-15 22:53:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-15 22:53:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-15 22:53:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-15 22:53:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-15 22:53:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-15 22:53:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-15 22:53:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:53:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-15 22:53:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-15 22:53:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-15 22:53:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-15 22:53:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-15 22:53:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-15 22:53:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-15 22:53:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-15 22:53:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-15 22:53:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-15 22:53:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-15 22:53:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-15 22:53:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-15 22:53:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-15 22:53:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-15 22:53:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-15 22:53:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-15 22:53:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-15 22:53:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:53:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:53:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:53:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:53:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-15 22:53:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-15 22:53:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:53:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:53:24,285 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:53:24,286 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:53:24,833 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:53:24,890 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:53:24,890 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:53:24,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:53:24 BoogieIcfgContainer [2023-12-15 22:53:24,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:53:24,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:53:24,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:53:24,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:53:24,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:53:23" (1/3) ... [2023-12-15 22:53:24,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6034c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:53:24, skipping insertion in model container [2023-12-15 22:53:24,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:53:23" (2/3) ... [2023-12-15 22:53:24,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6034c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:53:24, skipping insertion in model container [2023-12-15 22:53:24,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:53:24" (3/3) ... [2023-12-15 22:53:24,896 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product28.cil.c [2023-12-15 22:53:24,908 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:53:24,908 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:53:24,954 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:53:24,958 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;@eabd59c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:53:24,959 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:53:24,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 303 states, 229 states have (on average 1.5764192139737991) internal successors, (361), 233 states have internal predecessors, (361), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-15 22:53:24,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-15 22:53:24,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:24,975 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:24,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:24,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:24,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1674852989, now seen corresponding path program 1 times [2023-12-15 22:53:24,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:24,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805255955] [2023-12-15 22:53:24,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:24,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:53:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:53:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:53:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:53:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:53:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:53:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:53:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:53:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:53:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,546 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:53:25,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:25,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805255955] [2023-12-15 22:53:25,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805255955] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:53:25,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122332605] [2023-12-15 22:53:25,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:25,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:53:25,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:53:25,551 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) [2023-12-15 22:53:25,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:53:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:25,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 22:53:25,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:53:25,840 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:53:25,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:53:25,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122332605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:25,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:53:25,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2023-12-15 22:53:25,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692663905] [2023-12-15 22:53:25,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:25,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:53:25,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:25,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:53:25,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:53:25,869 INFO L87 Difference]: Start difference. First operand has 303 states, 229 states have (on average 1.5764192139737991) internal successors, (361), 233 states have internal predecessors, (361), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:25,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:25,917 INFO L93 Difference]: Finished difference Result 465 states and 692 transitions. [2023-12-15 22:53:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:53:25,919 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2023-12-15 22:53:25,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:25,928 INFO L225 Difference]: With dead ends: 465 [2023-12-15 22:53:25,928 INFO L226 Difference]: Without dead ends: 300 [2023-12-15 22:53:25,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:53:25,933 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:25,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 446 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:53:25,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-12-15 22:53:25,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-12-15 22:53:25,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 227 states have (on average 1.5594713656387664) internal successors, (354), 230 states have internal predecessors, (354), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-15 22:53:25,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 453 transitions. [2023-12-15 22:53:25,997 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 453 transitions. Word has length 92 [2023-12-15 22:53:25,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:25,998 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 453 transitions. [2023-12-15 22:53:25,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:25,998 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 453 transitions. [2023-12-15 22:53:26,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-15 22:53:26,002 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:26,002 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:26,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 22:53:26,207 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 [2023-12-15 22:53:26,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:26,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:26,218 INFO L85 PathProgramCache]: Analyzing trace with hash -2120346786, now seen corresponding path program 1 times [2023-12-15 22:53:26,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:26,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135772528] [2023-12-15 22:53:26,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:26,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:53:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:53:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:53:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 22:53:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:53:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:53:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:53:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:53:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:53:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,439 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:53:26,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:26,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135772528] [2023-12-15 22:53:26,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135772528] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:53:26,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103131764] [2023-12-15 22:53:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:26,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:53:26,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:53:26,442 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) [2023-12-15 22:53:26,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:53:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:26,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 22:53:26,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:53:26,686 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:53:26,686 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:53:26,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103131764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:26,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:53:26,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-15 22:53:26,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109580428] [2023-12-15 22:53:26,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:26,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:53:26,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:26,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:53:26,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:53:26,689 INFO L87 Difference]: Start difference. First operand 300 states and 453 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:26,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:26,749 INFO L93 Difference]: Finished difference Result 461 states and 679 transitions. [2023-12-15 22:53:26,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:53:26,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2023-12-15 22:53:26,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:26,755 INFO L225 Difference]: With dead ends: 461 [2023-12-15 22:53:26,755 INFO L226 Difference]: Without dead ends: 302 [2023-12-15 22:53:26,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:53:26,757 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 0 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:26,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 885 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:53:26,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-12-15 22:53:26,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2023-12-15 22:53:26,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 229 states have (on average 1.554585152838428) internal successors, (356), 232 states have internal predecessors, (356), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-15 22:53:26,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 455 transitions. [2023-12-15 22:53:26,801 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 455 transitions. Word has length 93 [2023-12-15 22:53:26,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:26,801 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 455 transitions. [2023-12-15 22:53:26,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:26,801 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 455 transitions. [2023-12-15 22:53:26,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-15 22:53:26,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:26,805 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:26,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 22:53:27,005 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 [2023-12-15 22:53:27,006 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:27,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:27,006 INFO L85 PathProgramCache]: Analyzing trace with hash 2013310588, now seen corresponding path program 1 times [2023-12-15 22:53:27,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:27,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755473824] [2023-12-15 22:53:27,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:27,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:53:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:53:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:53:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:53:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 22:53:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:53:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:53:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:53:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:53:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,148 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:53:27,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:27,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755473824] [2023-12-15 22:53:27,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755473824] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:53:27,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841096380] [2023-12-15 22:53:27,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:27,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:53:27,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:53:27,150 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) [2023-12-15 22:53:27,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:53:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:53:27,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:53:27,377 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:53:27,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:53:27,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841096380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:27,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:53:27,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-15 22:53:27,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016762927] [2023-12-15 22:53:27,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:27,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:53:27,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:27,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:53:27,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:53:27,379 INFO L87 Difference]: Start difference. First operand 302 states and 455 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:27,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:27,426 INFO L93 Difference]: Finished difference Result 630 states and 962 transitions. [2023-12-15 22:53:27,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:53:27,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-12-15 22:53:27,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:27,430 INFO L225 Difference]: With dead ends: 630 [2023-12-15 22:53:27,430 INFO L226 Difference]: Without dead ends: 350 [2023-12-15 22:53:27,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:53:27,433 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 95 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:27,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 849 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:53:27,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-12-15 22:53:27,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 345. [2023-12-15 22:53:27,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 261 states have (on average 1.5670498084291187) internal successors, (409), 264 states have internal predecessors, (409), 61 states have call successors, (61), 22 states have call predecessors, (61), 22 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-15 22:53:27,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 530 transitions. [2023-12-15 22:53:27,462 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 530 transitions. Word has length 98 [2023-12-15 22:53:27,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:27,464 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 530 transitions. [2023-12-15 22:53:27,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:27,464 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 530 transitions. [2023-12-15 22:53:27,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-15 22:53:27,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:27,468 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:27,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 22:53:27,674 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 [2023-12-15 22:53:27,675 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:27,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:27,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1889702237, now seen corresponding path program 1 times [2023-12-15 22:53:27,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:27,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096095697] [2023-12-15 22:53:27,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:27,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:53:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:53:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:53:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:53:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:53:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:53:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:53:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:53:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:53:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:27,843 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:53:27,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:27,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096095697] [2023-12-15 22:53:27,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096095697] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:53:27,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398331808] [2023-12-15 22:53:27,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:27,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:53:27,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:53:27,848 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) [2023-12-15 22:53:27,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 22:53:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 22:53:28,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:53:28,108 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:53:28,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:53:28,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398331808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:28,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:53:28,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-15 22:53:28,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824965501] [2023-12-15 22:53:28,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:28,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:53:28,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:28,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:53:28,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:53:28,110 INFO L87 Difference]: Start difference. First operand 345 states and 530 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-15 22:53:28,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:28,178 INFO L93 Difference]: Finished difference Result 685 states and 1054 transitions. [2023-12-15 22:53:28,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:53:28,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2023-12-15 22:53:28,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:28,181 INFO L225 Difference]: With dead ends: 685 [2023-12-15 22:53:28,181 INFO L226 Difference]: Without dead ends: 347 [2023-12-15 22:53:28,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:53:28,184 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 8 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:28,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1725 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:53:28,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-12-15 22:53:28,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2023-12-15 22:53:28,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 262 states have (on average 1.5648854961832062) internal successors, (410), 266 states have internal predecessors, (410), 61 states have call successors, (61), 22 states have call predecessors, (61), 23 states have return successors, (62), 60 states have call predecessors, (62), 60 states have call successors, (62) [2023-12-15 22:53:28,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 533 transitions. [2023-12-15 22:53:28,198 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 533 transitions. Word has length 99 [2023-12-15 22:53:28,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:28,198 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 533 transitions. [2023-12-15 22:53:28,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-15 22:53:28,199 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 533 transitions. [2023-12-15 22:53:28,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 22:53:28,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:28,200 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:28,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 22:53:28,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:53:28,409 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:28,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:28,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1130946836, now seen corresponding path program 1 times [2023-12-15 22:53:28,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:28,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544696594] [2023-12-15 22:53:28,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:28,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:53:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:53:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 22:53:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:53:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:53:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:53:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:53:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:53:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,586 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:53:28,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:28,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544696594] [2023-12-15 22:53:28,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544696594] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:53:28,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022751661] [2023-12-15 22:53:28,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:28,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:53:28,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:53:28,588 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) [2023-12-15 22:53:28,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 22:53:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:28,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 22:53:28,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:53:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:53:28,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:53:28,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022751661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:28,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:53:28,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-12-15 22:53:28,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114171144] [2023-12-15 22:53:28,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:28,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:53:28,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:28,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:53:28,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:53:28,842 INFO L87 Difference]: Start difference. First operand 347 states and 533 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-15 22:53:28,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:28,933 INFO L93 Difference]: Finished difference Result 687 states and 1059 transitions. [2023-12-15 22:53:28,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:53:28,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2023-12-15 22:53:28,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:28,936 INFO L225 Difference]: With dead ends: 687 [2023-12-15 22:53:28,936 INFO L226 Difference]: Without dead ends: 349 [2023-12-15 22:53:28,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:53:28,937 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 8 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1711 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 [2023-12-15 22:53:28,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1711 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:53:28,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-12-15 22:53:28,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2023-12-15 22:53:28,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 263 states have (on average 1.5627376425855513) internal successors, (411), 268 states have internal predecessors, (411), 61 states have call successors, (61), 22 states have call predecessors, (61), 24 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2023-12-15 22:53:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 539 transitions. [2023-12-15 22:53:28,953 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 539 transitions. Word has length 100 [2023-12-15 22:53:28,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:28,953 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 539 transitions. [2023-12-15 22:53:28,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-15 22:53:28,953 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 539 transitions. [2023-12-15 22:53:28,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 22:53:28,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:28,956 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:28,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 22:53:29,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:53:29,162 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:29,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:29,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1954591359, now seen corresponding path program 1 times [2023-12-15 22:53:29,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:29,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827337057] [2023-12-15 22:53:29,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:29,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:53:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 22:53:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:53:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:53:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:53:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:53:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:53:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:29,281 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:53:29,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:29,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827337057] [2023-12-15 22:53:29,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827337057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:29,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:29,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 22:53:29,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316410753] [2023-12-15 22:53:29,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:29,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 22:53:29,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:29,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 22:53:29,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:53:29,282 INFO L87 Difference]: Start difference. First operand 349 states and 539 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-15 22:53:30,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:30,348 INFO L93 Difference]: Finished difference Result 741 states and 1152 transitions. [2023-12-15 22:53:30,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:53:30,348 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2023-12-15 22:53:30,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:30,350 INFO L225 Difference]: With dead ends: 741 [2023-12-15 22:53:30,350 INFO L226 Difference]: Without dead ends: 411 [2023-12-15 22:53:30,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:53:30,352 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 759 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 2069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:30,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 812 Invalid, 2069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:53:30,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-12-15 22:53:30,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 349. [2023-12-15 22:53:30,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 263 states have (on average 1.5627376425855513) internal successors, (411), 268 states have internal predecessors, (411), 61 states have call successors, (61), 22 states have call predecessors, (61), 24 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2023-12-15 22:53:30,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 538 transitions. [2023-12-15 22:53:30,368 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 538 transitions. Word has length 101 [2023-12-15 22:53:30,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:30,368 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 538 transitions. [2023-12-15 22:53:30,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-15 22:53:30,368 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 538 transitions. [2023-12-15 22:53:30,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 22:53:30,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:30,369 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:30,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:53:30,370 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:30,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:30,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2040742124, now seen corresponding path program 2 times [2023-12-15 22:53:30,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:30,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441750743] [2023-12-15 22:53:30,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:30,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:53:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:53:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:53:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:53:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:53:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:53:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:53:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:53:30,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:30,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441750743] [2023-12-15 22:53:30,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441750743] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:30,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:30,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 22:53:30,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697172959] [2023-12-15 22:53:30,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:30,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 22:53:30,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:30,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 22:53:30,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:53:30,484 INFO L87 Difference]: Start difference. First operand 349 states and 538 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-15 22:53:31,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:31,548 INFO L93 Difference]: Finished difference Result 743 states and 1155 transitions. [2023-12-15 22:53:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:53:31,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 102 [2023-12-15 22:53:31,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:31,551 INFO L225 Difference]: With dead ends: 743 [2023-12-15 22:53:31,551 INFO L226 Difference]: Without dead ends: 413 [2023-12-15 22:53:31,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:53:31,553 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 765 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:31,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 812 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:53:31,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-12-15 22:53:31,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 351. [2023-12-15 22:53:31,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 264 states have (on average 1.5606060606060606) internal successors, (412), 270 states have internal predecessors, (412), 61 states have call successors, (61), 22 states have call predecessors, (61), 25 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2023-12-15 22:53:31,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 541 transitions. [2023-12-15 22:53:31,568 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 541 transitions. Word has length 102 [2023-12-15 22:53:31,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:31,568 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 541 transitions. [2023-12-15 22:53:31,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-15 22:53:31,568 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 541 transitions. [2023-12-15 22:53:31,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-15 22:53:31,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:31,570 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:31,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:53:31,570 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:31,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:31,570 INFO L85 PathProgramCache]: Analyzing trace with hash 534562148, now seen corresponding path program 1 times [2023-12-15 22:53:31,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:31,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640577574] [2023-12-15 22:53:31,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:31,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:53:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:53:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:53:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:53:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:53:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:53:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:31,701 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:53:31,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:31,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640577574] [2023-12-15 22:53:31,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640577574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:31,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:31,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 22:53:31,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465450944] [2023-12-15 22:53:31,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:31,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:53:31,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:31,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:53:31,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:53:31,703 INFO L87 Difference]: Start difference. First operand 351 states and 541 transitions. Second operand has 11 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-15 22:53:33,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:33,250 INFO L93 Difference]: Finished difference Result 741 states and 1150 transitions. [2023-12-15 22:53:33,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-15 22:53:33,251 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 103 [2023-12-15 22:53:33,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:33,255 INFO L225 Difference]: With dead ends: 741 [2023-12-15 22:53:33,255 INFO L226 Difference]: Without dead ends: 413 [2023-12-15 22:53:33,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-12-15 22:53:33,257 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 752 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 3144 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 3388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 3144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:33,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1163 Invalid, 3388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 3144 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:53:33,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-12-15 22:53:33,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 351. [2023-12-15 22:53:33,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 264 states have (on average 1.5606060606060606) internal successors, (412), 270 states have internal predecessors, (412), 61 states have call successors, (61), 22 states have call predecessors, (61), 25 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2023-12-15 22:53:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 540 transitions. [2023-12-15 22:53:33,277 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 540 transitions. Word has length 103 [2023-12-15 22:53:33,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:33,278 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 540 transitions. [2023-12-15 22:53:33,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-15 22:53:33,278 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 540 transitions. [2023-12-15 22:53:33,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 22:53:33,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:33,279 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:33,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:53:33,279 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:33,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:33,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1423589427, now seen corresponding path program 2 times [2023-12-15 22:53:33,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:33,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224906089] [2023-12-15 22:53:33,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:33,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:53:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:53:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:53:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:53:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:53:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:53:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:53:33,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:33,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224906089] [2023-12-15 22:53:33,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224906089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:33,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:33,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 22:53:33,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090033436] [2023-12-15 22:53:33,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:33,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:53:33,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:33,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:53:33,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:53:33,410 INFO L87 Difference]: Start difference. First operand 351 states and 540 transitions. Second operand has 11 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-15 22:53:34,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:34,937 INFO L93 Difference]: Finished difference Result 743 states and 1156 transitions. [2023-12-15 22:53:34,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-15 22:53:34,937 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 104 [2023-12-15 22:53:34,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:34,939 INFO L225 Difference]: With dead ends: 743 [2023-12-15 22:53:34,939 INFO L226 Difference]: Without dead ends: 415 [2023-12-15 22:53:34,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-12-15 22:53:34,940 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 774 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:34,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1163 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 3079 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:53:34,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-12-15 22:53:34,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 353. [2023-12-15 22:53:34,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 265 states have (on average 1.558490566037736) internal successors, (413), 272 states have internal predecessors, (413), 61 states have call successors, (61), 22 states have call predecessors, (61), 26 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2023-12-15 22:53:34,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 546 transitions. [2023-12-15 22:53:34,953 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 546 transitions. Word has length 104 [2023-12-15 22:53:34,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:34,953 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 546 transitions. [2023-12-15 22:53:34,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-15 22:53:34,954 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 546 transitions. [2023-12-15 22:53:34,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-15 22:53:34,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:34,955 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:34,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:53:34,955 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:34,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:34,955 INFO L85 PathProgramCache]: Analyzing trace with hash 230255241, now seen corresponding path program 1 times [2023-12-15 22:53:34,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:34,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056046591] [2023-12-15 22:53:34,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:34,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:53:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:53:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:53:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:53:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:53:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:53:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,043 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:35,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:35,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056046591] [2023-12-15 22:53:35,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056046591] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:53:35,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814980560] [2023-12-15 22:53:35,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:35,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:53:35,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:53:35,045 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:53:35,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 22:53:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:35,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:53:35,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:53:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:35,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:53:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:35,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814980560] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:53:35,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:53:35,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2023-12-15 22:53:35,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167129590] [2023-12-15 22:53:35,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:53:35,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:53:35,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:35,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:53:35,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:53:35,341 INFO L87 Difference]: Start difference. First operand 353 states and 546 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-15 22:53:36,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:36,734 INFO L93 Difference]: Finished difference Result 884 states and 1441 transitions. [2023-12-15 22:53:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 22:53:36,744 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 105 [2023-12-15 22:53:36,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:36,750 INFO L225 Difference]: With dead ends: 884 [2023-12-15 22:53:36,750 INFO L226 Difference]: Without dead ends: 725 [2023-12-15 22:53:36,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:53:36,754 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1044 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 2750 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 3097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 2750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:36,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1266 Invalid, 3097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 2750 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:53:36,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2023-12-15 22:53:36,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 648. [2023-12-15 22:53:36,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 496 states have (on average 1.6189516129032258) internal successors, (803), 503 states have internal predecessors, (803), 125 states have call successors, (125), 22 states have call predecessors, (125), 26 states have return successors, (146), 124 states have call predecessors, (146), 124 states have call successors, (146) [2023-12-15 22:53:36,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1074 transitions. [2023-12-15 22:53:36,778 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1074 transitions. Word has length 105 [2023-12-15 22:53:36,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:36,779 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1074 transitions. [2023-12-15 22:53:36,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-15 22:53:36,780 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1074 transitions. [2023-12-15 22:53:36,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 22:53:36,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:36,782 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:36,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 22:53:36,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:53:36,992 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:36,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:36,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1424036646, now seen corresponding path program 1 times [2023-12-15 22:53:36,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:36,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822994396] [2023-12-15 22:53:36,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:36,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:53:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:53:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:53:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:53:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:53:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:53:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,059 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:37,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:37,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822994396] [2023-12-15 22:53:37,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822994396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:37,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:37,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:53:37,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016796333] [2023-12-15 22:53:37,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:37,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:53:37,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:37,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:53:37,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:53:37,061 INFO L87 Difference]: Start difference. First operand 648 states and 1074 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:37,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:37,907 INFO L93 Difference]: Finished difference Result 1595 states and 2710 transitions. [2023-12-15 22:53:37,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:53:37,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2023-12-15 22:53:37,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:37,926 INFO L225 Difference]: With dead ends: 1595 [2023-12-15 22:53:37,926 INFO L226 Difference]: Without dead ends: 1007 [2023-12-15 22:53:37,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:53:37,928 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 828 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:37,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 608 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:53:37,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2023-12-15 22:53:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 940. [2023-12-15 22:53:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 724 states have (on average 1.6298342541436464) internal successors, (1180), 731 states have internal predecessors, (1180), 189 states have call successors, (189), 22 states have call predecessors, (189), 26 states have return successors, (220), 188 states have call predecessors, (220), 188 states have call successors, (220) [2023-12-15 22:53:37,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1589 transitions. [2023-12-15 22:53:37,958 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1589 transitions. Word has length 111 [2023-12-15 22:53:37,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:37,958 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1589 transitions. [2023-12-15 22:53:37,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:37,958 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1589 transitions. [2023-12-15 22:53:37,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-15 22:53:37,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:37,962 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:37,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:53:37,962 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:37,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:37,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2086109936, now seen corresponding path program 1 times [2023-12-15 22:53:37,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:37,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698769773] [2023-12-15 22:53:37,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:37,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:37,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:53:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:53:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:53:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:53:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:53:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:53:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:38,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:38,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698769773] [2023-12-15 22:53:38,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698769773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:38,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:38,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:53:38,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741589851] [2023-12-15 22:53:38,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:38,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:53:38,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:38,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:53:38,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:53:38,027 INFO L87 Difference]: Start difference. First operand 940 states and 1589 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:38,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:38,830 INFO L93 Difference]: Finished difference Result 2292 states and 3937 transitions. [2023-12-15 22:53:38,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:53:38,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2023-12-15 22:53:38,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:38,836 INFO L225 Difference]: With dead ends: 2292 [2023-12-15 22:53:38,836 INFO L226 Difference]: Without dead ends: 1462 [2023-12-15 22:53:38,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:53:38,839 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 854 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:38,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 571 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:53:38,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2023-12-15 22:53:38,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1395. [2023-12-15 22:53:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1084 states have (on average 1.636531365313653) internal successors, (1774), 1091 states have internal predecessors, (1774), 284 states have call successors, (284), 22 states have call predecessors, (284), 26 states have return successors, (315), 283 states have call predecessors, (315), 283 states have call successors, (315) [2023-12-15 22:53:38,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 2373 transitions. [2023-12-15 22:53:38,878 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 2373 transitions. Word has length 112 [2023-12-15 22:53:38,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:38,878 INFO L495 AbstractCegarLoop]: Abstraction has 1395 states and 2373 transitions. [2023-12-15 22:53:38,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:38,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 2373 transitions. [2023-12-15 22:53:38,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-15 22:53:38,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:38,883 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:38,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 22:53:38,883 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:38,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:38,884 INFO L85 PathProgramCache]: Analyzing trace with hash 218611272, now seen corresponding path program 1 times [2023-12-15 22:53:38,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:38,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471332348] [2023-12-15 22:53:38,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:38,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:53:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:53:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:53:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:53:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:53:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:53:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:38,938 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:38,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:38,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471332348] [2023-12-15 22:53:38,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471332348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:38,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:38,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:53:38,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497367468] [2023-12-15 22:53:38,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:38,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:53:38,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:38,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:53:38,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:53:38,940 INFO L87 Difference]: Start difference. First operand 1395 states and 2373 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:39,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:39,791 INFO L93 Difference]: Finished difference Result 3310 states and 5749 transitions. [2023-12-15 22:53:39,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:53:39,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2023-12-15 22:53:39,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:39,801 INFO L225 Difference]: With dead ends: 3310 [2023-12-15 22:53:39,801 INFO L226 Difference]: Without dead ends: 2145 [2023-12-15 22:53:39,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:53:39,806 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 836 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:39,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 571 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:53:39,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2023-12-15 22:53:39,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 2078. [2023-12-15 22:53:39,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 1644 states have (on average 1.6423357664233578) internal successors, (2700), 1651 states have internal predecessors, (2700), 407 states have call successors, (407), 22 states have call predecessors, (407), 26 states have return successors, (454), 406 states have call predecessors, (454), 406 states have call successors, (454) [2023-12-15 22:53:39,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 3561 transitions. [2023-12-15 22:53:39,869 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 3561 transitions. Word has length 113 [2023-12-15 22:53:39,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:39,869 INFO L495 AbstractCegarLoop]: Abstraction has 2078 states and 3561 transitions. [2023-12-15 22:53:39,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:39,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 3561 transitions. [2023-12-15 22:53:39,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-15 22:53:39,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:39,876 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:39,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 22:53:39,876 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:39,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:39,877 INFO L85 PathProgramCache]: Analyzing trace with hash 84901553, now seen corresponding path program 1 times [2023-12-15 22:53:39,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:39,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522691584] [2023-12-15 22:53:39,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:39,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:53:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:53:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:53:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:53:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:53:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:53:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:39,942 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:39,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:39,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522691584] [2023-12-15 22:53:39,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522691584] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:39,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:39,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:53:39,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955956720] [2023-12-15 22:53:39,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:39,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:53:39,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:39,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:53:39,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:53:39,943 INFO L87 Difference]: Start difference. First operand 2078 states and 3561 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:40,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:40,819 INFO L93 Difference]: Finished difference Result 4880 states and 8554 transitions. [2023-12-15 22:53:40,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:53:40,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2023-12-15 22:53:40,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:40,835 INFO L225 Difference]: With dead ends: 4880 [2023-12-15 22:53:40,835 INFO L226 Difference]: Without dead ends: 3229 [2023-12-15 22:53:40,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:53:40,840 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 828 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:40,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 570 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:53:40,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2023-12-15 22:53:40,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 3162. [2023-12-15 22:53:40,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3162 states, 2549 states have (on average 1.6461357395056886) internal successors, (4196), 2556 states have internal predecessors, (4196), 586 states have call successors, (586), 22 states have call predecessors, (586), 26 states have return successors, (659), 585 states have call predecessors, (659), 585 states have call successors, (659) [2023-12-15 22:53:40,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3162 states to 3162 states and 5441 transitions. [2023-12-15 22:53:40,941 INFO L78 Accepts]: Start accepts. Automaton has 3162 states and 5441 transitions. Word has length 114 [2023-12-15 22:53:40,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:40,942 INFO L495 AbstractCegarLoop]: Abstraction has 3162 states and 5441 transitions. [2023-12-15 22:53:40,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:40,942 INFO L276 IsEmpty]: Start isEmpty. Operand 3162 states and 5441 transitions. [2023-12-15 22:53:40,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 22:53:40,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:40,950 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:40,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 22:53:40,951 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:40,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:40,951 INFO L85 PathProgramCache]: Analyzing trace with hash 815130500, now seen corresponding path program 1 times [2023-12-15 22:53:40,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:40,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632744553] [2023-12-15 22:53:40,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:40,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:40,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:41,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:41,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:41,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:41,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:41,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:53:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:41,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:53:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:41,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:53:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:41,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:53:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:41,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:53:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:41,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:53:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:41,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:41,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632744553] [2023-12-15 22:53:41,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632744553] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:41,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:41,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:53:41,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242765551] [2023-12-15 22:53:41,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:41,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:53:41,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:41,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:53:41,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:53:41,025 INFO L87 Difference]: Start difference. First operand 3162 states and 5441 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:41,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:41,862 INFO L93 Difference]: Finished difference Result 7711 states and 13566 transitions. [2023-12-15 22:53:41,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:53:41,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2023-12-15 22:53:41,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:41,882 INFO L225 Difference]: With dead ends: 7711 [2023-12-15 22:53:41,882 INFO L226 Difference]: Without dead ends: 5199 [2023-12-15 22:53:41,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:53:41,890 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 822 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:41,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 596 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:53:41,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2023-12-15 22:53:42,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5132. [2023-12-15 22:53:42,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5132 states, 4143 states have (on average 1.6381848901762008) internal successors, (6787), 4150 states have internal predecessors, (6787), 962 states have call successors, (962), 22 states have call predecessors, (962), 26 states have return successors, (1079), 961 states have call predecessors, (1079), 961 states have call successors, (1079) [2023-12-15 22:53:42,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5132 states to 5132 states and 8828 transitions. [2023-12-15 22:53:42,080 INFO L78 Accepts]: Start accepts. Automaton has 5132 states and 8828 transitions. Word has length 115 [2023-12-15 22:53:42,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:42,080 INFO L495 AbstractCegarLoop]: Abstraction has 5132 states and 8828 transitions. [2023-12-15 22:53:42,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:42,081 INFO L276 IsEmpty]: Start isEmpty. Operand 5132 states and 8828 transitions. [2023-12-15 22:53:42,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-15 22:53:42,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:42,094 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:42,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 22:53:42,094 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:42,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:42,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1606121099, now seen corresponding path program 1 times [2023-12-15 22:53:42,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:42,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428022593] [2023-12-15 22:53:42,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:42,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:53:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:53:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:53:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:53:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:53:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:53:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:42,174 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:42,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:42,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428022593] [2023-12-15 22:53:42,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428022593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:42,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:42,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:53:42,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670303025] [2023-12-15 22:53:42,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:42,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:53:42,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:42,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:53:42,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:53:42,175 INFO L87 Difference]: Start difference. First operand 5132 states and 8828 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:43,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:43,109 INFO L93 Difference]: Finished difference Result 12692 states and 22314 transitions. [2023-12-15 22:53:43,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:53:43,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2023-12-15 22:53:43,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:43,141 INFO L225 Difference]: With dead ends: 12692 [2023-12-15 22:53:43,141 INFO L226 Difference]: Without dead ends: 8576 [2023-12-15 22:53:43,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:53:43,151 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 834 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:43,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 571 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:53:43,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8576 states. [2023-12-15 22:53:43,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8576 to 8509. [2023-12-15 22:53:43,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8509 states, 6914 states have (on average 1.6358113971651722) internal successors, (11310), 6921 states have internal predecessors, (11310), 1568 states have call successors, (1568), 22 states have call predecessors, (1568), 26 states have return successors, (1763), 1567 states have call predecessors, (1763), 1567 states have call successors, (1763) [2023-12-15 22:53:43,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8509 states to 8509 states and 14641 transitions. [2023-12-15 22:53:43,427 INFO L78 Accepts]: Start accepts. Automaton has 8509 states and 14641 transitions. Word has length 116 [2023-12-15 22:53:43,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:43,428 INFO L495 AbstractCegarLoop]: Abstraction has 8509 states and 14641 transitions. [2023-12-15 22:53:43,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:43,428 INFO L276 IsEmpty]: Start isEmpty. Operand 8509 states and 14641 transitions. [2023-12-15 22:53:43,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-15 22:53:43,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:43,443 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:43,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 22:53:43,443 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:43,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:43,444 INFO L85 PathProgramCache]: Analyzing trace with hash 616158342, now seen corresponding path program 1 times [2023-12-15 22:53:43,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:43,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330862887] [2023-12-15 22:53:43,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:43,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:53:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:53:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:53:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:53:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:53:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-15 22:53:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:43,509 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:43,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:43,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330862887] [2023-12-15 22:53:43,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330862887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:43,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:43,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:53:43,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795301061] [2023-12-15 22:53:43,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:43,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:53:43,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:43,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:53:43,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:53:43,511 INFO L87 Difference]: Start difference. First operand 8509 states and 14641 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:44,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:44,463 INFO L93 Difference]: Finished difference Result 22044 states and 38713 transitions. [2023-12-15 22:53:44,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:53:44,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2023-12-15 22:53:44,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:44,506 INFO L225 Difference]: With dead ends: 22044 [2023-12-15 22:53:44,507 INFO L226 Difference]: Without dead ends: 14960 [2023-12-15 22:53:44,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:53:44,527 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 848 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:44,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 598 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:53:44,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14960 states. [2023-12-15 22:53:44,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14960 to 14893. [2023-12-15 22:53:44,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14893 states, 12095 states have (on average 1.6260438197602316) internal successors, (19667), 12102 states have internal predecessors, (19667), 2771 states have call successors, (2771), 22 states have call predecessors, (2771), 26 states have return successors, (3110), 2770 states have call predecessors, (3110), 2770 states have call successors, (3110) [2023-12-15 22:53:44,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14893 states to 14893 states and 25548 transitions. [2023-12-15 22:53:44,970 INFO L78 Accepts]: Start accepts. Automaton has 14893 states and 25548 transitions. Word has length 117 [2023-12-15 22:53:44,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:44,970 INFO L495 AbstractCegarLoop]: Abstraction has 14893 states and 25548 transitions. [2023-12-15 22:53:44,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:44,970 INFO L276 IsEmpty]: Start isEmpty. Operand 14893 states and 25548 transitions. [2023-12-15 22:53:45,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-15 22:53:45,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:45,048 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:45,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 22:53:45,048 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:45,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:45,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1350385334, now seen corresponding path program 1 times [2023-12-15 22:53:45,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:45,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694461865] [2023-12-15 22:53:45,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:45,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:53:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:53:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:53:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:53:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:53:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:53:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:45,115 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:45,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:45,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694461865] [2023-12-15 22:53:45,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694461865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:45,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:45,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:53:45,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232008633] [2023-12-15 22:53:45,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:45,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:53:45,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:45,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:53:45,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:53:45,118 INFO L87 Difference]: Start difference. First operand 14893 states and 25548 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:46,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:46,326 INFO L93 Difference]: Finished difference Result 39403 states and 69099 transitions. [2023-12-15 22:53:46,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:53:46,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2023-12-15 22:53:46,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:46,443 INFO L225 Difference]: With dead ends: 39403 [2023-12-15 22:53:46,443 INFO L226 Difference]: Without dead ends: 26527 [2023-12-15 22:53:46,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:53:46,465 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 840 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:46,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 571 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:53:46,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26527 states. [2023-12-15 22:53:47,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26527 to 26460. [2023-12-15 22:53:47,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26460 states, 21623 states have (on average 1.6219765989918142) internal successors, (35072), 21630 states have internal predecessors, (35072), 4810 states have call successors, (4810), 22 states have call predecessors, (4810), 26 states have return successors, (5423), 4809 states have call predecessors, (5423), 4809 states have call successors, (5423) [2023-12-15 22:53:47,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26460 states to 26460 states and 45305 transitions. [2023-12-15 22:53:47,242 INFO L78 Accepts]: Start accepts. Automaton has 26460 states and 45305 transitions. Word has length 118 [2023-12-15 22:53:47,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:47,242 INFO L495 AbstractCegarLoop]: Abstraction has 26460 states and 45305 transitions. [2023-12-15 22:53:47,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:47,243 INFO L276 IsEmpty]: Start isEmpty. Operand 26460 states and 45305 transitions. [2023-12-15 22:53:47,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-15 22:53:47,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:47,264 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:47,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 22:53:47,264 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:47,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:47,265 INFO L85 PathProgramCache]: Analyzing trace with hash 133765608, now seen corresponding path program 1 times [2023-12-15 22:53:47,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:47,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140356676] [2023-12-15 22:53:47,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:47,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:53:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:53:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:53:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:53:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:53:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 22:53:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:47,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:47,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140356676] [2023-12-15 22:53:47,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140356676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:47,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:47,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:53:47,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618281325] [2023-12-15 22:53:47,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:47,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:53:47,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:47,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:53:47,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:53:47,335 INFO L87 Difference]: Start difference. First operand 26460 states and 45305 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:49,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:49,162 INFO L93 Difference]: Finished difference Result 72015 states and 125523 transitions. [2023-12-15 22:53:49,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:53:49,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2023-12-15 22:53:49,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:49,275 INFO L225 Difference]: With dead ends: 72015 [2023-12-15 22:53:49,275 INFO L226 Difference]: Without dead ends: 48287 [2023-12-15 22:53:49,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:53:49,315 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 818 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:49,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 581 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:53:49,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48287 states. [2023-12-15 22:53:50,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48287 to 48220. [2023-12-15 22:53:50,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48220 states, 39668 states have (on average 1.6165170918624585) internal successors, (64124), 39675 states have internal predecessors, (64124), 8525 states have call successors, (8525), 22 states have call predecessors, (8525), 26 states have return successors, (9670), 8524 states have call predecessors, (9670), 8524 states have call successors, (9670) [2023-12-15 22:53:50,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48220 states to 48220 states and 82319 transitions. [2023-12-15 22:53:50,948 INFO L78 Accepts]: Start accepts. Automaton has 48220 states and 82319 transitions. Word has length 119 [2023-12-15 22:53:50,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:50,949 INFO L495 AbstractCegarLoop]: Abstraction has 48220 states and 82319 transitions. [2023-12-15 22:53:50,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:50,949 INFO L276 IsEmpty]: Start isEmpty. Operand 48220 states and 82319 transitions. [2023-12-15 22:53:50,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 22:53:50,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:50,975 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:50,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 22:53:50,975 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:50,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:50,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1145062230, now seen corresponding path program 1 times [2023-12-15 22:53:50,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:50,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336078151] [2023-12-15 22:53:50,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:50,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:53:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:53:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:53:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:53:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:53:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-15 22:53:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:51,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:51,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336078151] [2023-12-15 22:53:51,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336078151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:51,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:51,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:53:51,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180711747] [2023-12-15 22:53:51,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:51,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:53:51,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:51,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:53:51,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:53:51,053 INFO L87 Difference]: Start difference. First operand 48220 states and 82319 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:53,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:53:53,327 INFO L93 Difference]: Finished difference Result 89734 states and 156887 transitions. [2023-12-15 22:53:53,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:53:53,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2023-12-15 22:53:53,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:53:53,779 INFO L225 Difference]: With dead ends: 89734 [2023-12-15 22:53:53,779 INFO L226 Difference]: Without dead ends: 89575 [2023-12-15 22:53:53,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:53:53,804 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 814 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:53:53,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 571 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:53:53,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89575 states. [2023-12-15 22:53:55,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89575 to 89508. [2023-12-15 22:53:56,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89508 states, 74157 states have (on average 1.6094771902854754) internal successors, (119354), 74164 states have internal predecessors, (119354), 15324 states have call successors, (15324), 22 states have call predecessors, (15324), 26 states have return successors, (17515), 15323 states have call predecessors, (17515), 15323 states have call successors, (17515) [2023-12-15 22:53:56,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89508 states to 89508 states and 152193 transitions. [2023-12-15 22:53:56,443 INFO L78 Accepts]: Start accepts. Automaton has 89508 states and 152193 transitions. Word has length 120 [2023-12-15 22:53:56,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:53:56,443 INFO L495 AbstractCegarLoop]: Abstraction has 89508 states and 152193 transitions. [2023-12-15 22:53:56,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-15 22:53:56,444 INFO L276 IsEmpty]: Start isEmpty. Operand 89508 states and 152193 transitions. [2023-12-15 22:53:56,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-15 22:53:56,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:53:56,475 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:53:56,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 22:53:56,475 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:53:56,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:53:56,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1898950695, now seen corresponding path program 1 times [2023-12-15 22:53:56,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:53:56,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168983980] [2023-12-15 22:53:56,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:53:56,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:53:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:53:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:53:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:53:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:53:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:53:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:53:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:53:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:53:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:53:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:53:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:53:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 22:53:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:53:56,909 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:53:56,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:53:56,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168983980] [2023-12-15 22:53:56,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168983980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:53:56,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:53:56,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-15 22:53:56,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152393121] [2023-12-15 22:53:56,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:53:56,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-15 22:53:56,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:53:56,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-15 22:53:56,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:53:56,911 INFO L87 Difference]: Start difference. First operand 89508 states and 152193 transitions. Second operand has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 11 states have internal predecessors, (82), 6 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-12-15 22:54:03,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:03,602 INFO L93 Difference]: Finished difference Result 178739 states and 315851 transitions. [2023-12-15 22:54:03,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-15 22:54:03,603 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 11 states have internal predecessors, (82), 6 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 121 [2023-12-15 22:54:03,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:04,481 INFO L225 Difference]: With dead ends: 178739 [2023-12-15 22:54:04,481 INFO L226 Difference]: Without dead ends: 178587 [2023-12-15 22:54:04,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=556, Invalid=1994, Unknown=0, NotChecked=0, Total=2550 [2023-12-15 22:54:04,548 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 3372 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 5288 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3383 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 6388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:04,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3383 Valid, 1852 Invalid, 6388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1100 Valid, 5288 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-15 22:54:04,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178587 states. [2023-12-15 22:54:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178587 to 178282. [2023-12-15 22:54:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178282 states, 147773 states have (on average 1.6104430443991797) internal successors, (237980), 147677 states have internal predecessors, (237980), 30443 states have call successors, (30443), 59 states have call predecessors, (30443), 65 states have return successors, (38094), 30551 states have call predecessors, (38094), 30440 states have call successors, (38094) [2023-12-15 22:54:11,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178282 states to 178282 states and 306517 transitions. [2023-12-15 22:54:11,774 INFO L78 Accepts]: Start accepts. Automaton has 178282 states and 306517 transitions. Word has length 121 [2023-12-15 22:54:11,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:54:11,774 INFO L495 AbstractCegarLoop]: Abstraction has 178282 states and 306517 transitions. [2023-12-15 22:54:11,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 11 states have internal predecessors, (82), 6 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-12-15 22:54:11,775 INFO L276 IsEmpty]: Start isEmpty. Operand 178282 states and 306517 transitions. [2023-12-15 22:54:11,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-15 22:54:11,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:54:11,826 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:54:11,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 22:54:11,826 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:54:11,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:54:11,826 INFO L85 PathProgramCache]: Analyzing trace with hash -272809627, now seen corresponding path program 1 times [2023-12-15 22:54:11,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:54:11,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111185226] [2023-12-15 22:54:11,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:11,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:54:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:11,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:54:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:11,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:54:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:11,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:54:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:11,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:54:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:11,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:54:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:11,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:54:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:11,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:54:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:11,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:54:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:11,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:54:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:11,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:54:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:12,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:54:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:12,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 22:54:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:12,016 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:54:12,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:54:12,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111185226] [2023-12-15 22:54:12,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111185226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:54:12,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:54:12,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-15 22:54:12,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829345134] [2023-12-15 22:54:12,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:54:12,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 22:54:12,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:54:12,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 22:54:12,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:54:12,017 INFO L87 Difference]: Start difference. First operand 178282 states and 306517 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-12-15 22:54:17,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:17,408 INFO L93 Difference]: Finished difference Result 179263 states and 314505 transitions. [2023-12-15 22:54:17,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-15 22:54:17,409 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 122 [2023-12-15 22:54:17,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:18,221 INFO L225 Difference]: With dead ends: 179263 [2023-12-15 22:54:18,221 INFO L226 Difference]: Without dead ends: 178571 [2023-12-15 22:54:18,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2023-12-15 22:54:18,286 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 1687 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 3415 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1702 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 4005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 3415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:18,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1702 Valid, 1253 Invalid, 4005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 3415 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 22:54:18,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178571 states. Received shutdown request... [2023-12-15 22:54:21,323 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 22:54:22,407 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 [2023-12-15 22:54:23,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178571 to 178373. [2023-12-15 22:54:24,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178373 states, 147839 states have (on average 1.6103531544450382) internal successors, (238073), 147748 states have internal predecessors, (238073), 30465 states have call successors, (30465), 62 states have call predecessors, (30465), 68 states have return successors, (38125), 30571 states have call predecessors, (38125), 30462 states have call successors, (38125) [2023-12-15 22:54:24,074 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:54:24,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-15 22:54:24,075 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-15 22:54:24,078 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:54:24,079 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:54:24,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:54:24 BoogieIcfgContainer [2023-12-15 22:54:24,080 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:54:24,081 INFO L158 Benchmark]: Toolchain (without parser) took 60760.99ms. Allocated memory was 185.6MB in the beginning and 7.2GB in the end (delta: 7.1GB). Free memory was 137.2MB in the beginning and 4.8GB in the end (delta: -4.7GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-15 22:54:24,081 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 185.6MB. Free memory was 142.8MB in the beginning and 142.6MB in the end (delta: 150.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:54:24,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.12ms. Allocated memory is still 185.6MB. Free memory was 136.7MB in the beginning and 94.7MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2023-12-15 22:54:24,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.44ms. Allocated memory is still 185.6MB. Free memory was 94.7MB in the beginning and 89.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 22:54:24,081 INFO L158 Benchmark]: Boogie Preprocessor took 97.14ms. Allocated memory was 185.6MB in the beginning and 260.0MB in the end (delta: 74.4MB). Free memory was 89.5MB in the beginning and 231.3MB in the end (delta: -141.8MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. [2023-12-15 22:54:24,081 INFO L158 Benchmark]: RCFGBuilder took 841.90ms. Allocated memory is still 260.0MB. Free memory was 231.3MB in the beginning and 163.7MB in the end (delta: 67.6MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2023-12-15 22:54:24,082 INFO L158 Benchmark]: TraceAbstraction took 59188.13ms. Allocated memory was 260.0MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 162.6MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2023-12-15 22:54:24,082 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 185.6MB. Free memory was 142.8MB in the beginning and 142.6MB in the end (delta: 150.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 561.12ms. Allocated memory is still 185.6MB. Free memory was 136.7MB in the beginning and 94.7MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.44ms. Allocated memory is still 185.6MB. Free memory was 94.7MB in the beginning and 89.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 97.14ms. Allocated memory was 185.6MB in the beginning and 260.0MB in the end (delta: 74.4MB). Free memory was 89.5MB in the beginning and 231.3MB in the end (delta: -141.8MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. * RCFGBuilder took 841.90ms. Allocated memory is still 260.0MB. Free memory was 231.3MB in the beginning and 163.7MB in the end (delta: 67.6MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. * TraceAbstraction took 59188.13ms. Allocated memory was 260.0MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 162.6MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 2.9GB. 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,"EncryptForward_spec.i","") [48] - GenericResultAtLocation [Line: 105]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [105] - GenericResultAtLocation [Line: 122]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [122] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [160] - GenericResultAtLocation [Line: 505]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [505] - GenericResultAtLocation [Line: 726]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [726] - GenericResultAtLocation [Line: 1801]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1801] - GenericResultAtLocation [Line: 2167]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2167] - GenericResultAtLocation [Line: 2432]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2432] - GenericResultAtLocation [Line: 2571]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2571] - GenericResultAtLocation [Line: 2968]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2968] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 2973]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2973). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 303 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.1s, OverallIterations: 22, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 33.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17828 SdHoareTripleChecker+Valid, 17.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17586 mSDsluCounter, 19745 SdHoareTripleChecker+Invalid, 14.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14845 mSDsCounter, 5855 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31563 IncrementalHoareTripleChecker+Invalid, 37418 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5855 mSolverCounterUnsat, 4900 mSDtfsCounter, 31563 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1503 GetRequests, 1232 SyntacticMatches, 0 SemanticMatches, 271 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178282occurred in iteration=21, InterpolantAutomatonStates: 198, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 19.4s AutomataMinimizationTime, 22 MinimizatonAttempts, 1305 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 2982 NumberOfCodeBlocks, 2982 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3058 ConstructedInterpolants, 0 QuantifiedInterpolants, 5471 SizeOfPredicates, 8 NumberOfNonLiveVariables, 5913 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 29 InterpolantComputations, 21 PerfectInterpolantSequences, 848/872 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown